HomeMy WebLinkAboutResolution 2006-203 adopting 2006 building codes as public records; adopting the 2005 national electric code
MARANA RESOLUTION NO. 2006-203
RELATING TO BUILDING; DECLARING THE 2006 INTERNATIONAL BUILDING CODE,
THE 2006 INTERNATIONAL RESIDENTIAL CODE, THE 2006 INTERNATIONAL
MECHANICAL CODE, THE 2006 INTERNATIONAL PLUMBING CODE, THE 2006
INTERNATIONAL PROPERTY MAINTENANCE CODE, THE 2006 INTERNATIONAL
ENERGY CONSERVATION CODE, THE 2005 NATIONAL ELECTRIC CODE, THE
LOCAL AMENDMENTS TO THE FOREGOING CODES, AND THE 2006 MARANA POOL
AND SPA CODE AS PUBLIC RECORDS FILED WITH THE TOWN CLERK; AND
DECLARING AN EMERGENCY.
BE IT RESOLVED BY THE MAYOR AND COUNCIL OF THE TOWN OF
MARANA, ARIZONA, as follows:
SECTION 1. The following codes, three copies of which are on file in the office of the
Town Clerk, are hereby declared to be public records and ordered to remain on file with the
Town Clerk:
A. The 2006 International Building Code and the local amendments to it.
B. The 2006 International Residential Code and the local amendments to it.
C. The 2006 International Mechanical Code and the local amendments to it.
D. The 2006 International Plumbing Code and the local amendments to it
E. The 2006 International Property Maintenance Code and the local amendments to it.
F. The 2006 International Energy Conservation Code and the local amendments to it.
G. The 2005 National Electric Code and the local amendments to it.
H. The 2006 Marana Pool and Spa Code.
SECTION 2. Since it is necessary for the preservation of the peace, health and safety of
the Town of Marana that this resolution become immediately effective, an emergency is hereby
declared to exist, and this resolution shall be effective immediately upon its passage and
adoption.
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PASSED AND ADOPTED BY THE MAYOR AND COUNCIL OF THE TOWN OF
MARANA, ARIZONA, this 5th day of December, 2006.
7z{~
Mayor Ed Honea
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Town of Marana
Amendments to the:
2006 International Building Code
Section 101.1 Title. Insert: [name of juris diction] as "Town of Marana".
Section 101.4 Referenced codes. REVISE section by DELETING the paragraph and REPLACING it
with the following:
The other codes listed in Sections 101.4.1 through 101.4.9, as locally amended, and referenced elsewhere
in this code shall be considered part of the requirements of this code to the prescribed extent of each such
reference.
Section 101.4.1 Electrical. REVISE section by deleting "ICC Electrical Code" and INSERTING the
words "2005 National Electric Code".
Section 101.4.4 Plumbing. REVISE section by DELETING the last sentence.
Section 101.4.6 Fire prevention. REVISE section by DELETING the paragraph and REPLACING it
with the following:
The provisions of the International Fire Code shall apply whenever referenced in this code or as deemed
necessary by the Building Official. Enforcement of the Fire Code shall, however, be relegated to the fire
jurisdiction having authority.
ADD new section 101.4.8 to read:
Section 101.4.8 Outdoor lighting. The provisions ofthe 2003 Town of Maran a Outdoor Lighting Code
shall apply to all new and major additions to land uses, development, buildings, and structures.
ADD new section 101.4.9 to read:
Section 101.4.9 The provisions ofthe 2006 Marana Pool and Spa Code shall apply to all installations of
pools and spas.
104.10 Modifications. REVISE section by ADDING the following to the end ofthe paragraph:
Requests for modification shall be appealed to the Building Official as follows:
1. The applicant shall file a written appeal on the form provided by the Building Official.
2. Adequate information shall be provided by the applicant to fully describe the conditions in
question.
3. The appeal will be considered by the Building Official within five (5) business days of receipt.
4. If an appeal is denied by the Building Official, the appellant must comply with the decision or
may appeal to the Board of Appeals pursuant to Chapter 7 ofthe Marana Town Code.
Section 105.1.1 Annual permit. REVISE section by ADDING the following to the end of the
paragraph:
The applicant for the registered plant annual permit shall be an architect registered in the State of Arizona
and who shall be directly responsible for compliance with this code with respect to all work which would
otherwise require a permit. This person will need to be approved by the Building Official. All new
applications need to be accompanied by a complete set of plans of affected buildings with a scope of
2006 International Building Code
Page 1 of 15
work and operations section clearly outlined. Annual registered plant permits shall not be granted for
buildings or facilities not currently operating under a valid certificate of occupancy.
Fees for annual permits shall expire on December 31 st of each year and will need to be renewed and
approved for registered plant status to be maintained. The permit will be suspended if the registered and
approved applicant becomes no longer employed by the registered plant. If this occurs, the plant will
need to notify the Building Official and call for immediate inspection on any ongoing work until such
time that a replacement registrant is approved by the Building Official. Annual permits may be revoked
at any time by the Building Official when failing to comply with requirements.
A summary report of all work done under the registered plant registration shall be prepared by the
registered architect and submitted annually to the Building Official. Work conducted under the registered
plant annual permit may be reviewed and inspected by the Building Official while the work is in progress
or on an annual basis.
The following work is not to be covered within the scope of the annual permit and shall require separate
permitting:
1. Any work creating a different occupancy group for all or any portion of a building.
2. Any work creating a different building type for all or any portion of a building.
3. Any work which adds, alters, removes or penetrates required fire walls or barriers, exit courts,
exit passageways or horizontal exits.
4. Any work which provides for the relocation of more than five sprinkler heads.
5. Any work which modifies load bearing structures.
Section 105.2 Work exempt from permit (Building).
REVISE item number 1. to add at the end: "Any electrical, plumbing, or mechanical portions of a
structure under this section will require a Building Permit."
Revise item number 2. to read: Masonry fences less than five (5) feet in height, wood fences less than
eight (8) feet in height, and chain link fences less than ten (10) feet in height" measured from the lowest
grade.
REVISE item number 6 by DELETING the fragment "Sidewalks and driveways..." and REPLACING it
with "Decks and non-structural flatwork..."
REVISE the Building section by ADDING new items number 14 to 18 as follows:
14. Any work accomplished under the auspices of and owned and controlled by the United States of
America or the State of Arizona.
15. Amusement devices or structures located on a site for no more than 30 calendar days.
16. Devices used in manufacturing, processing, or fabricating normally considered as involved in
industrial plants.
17. Temporary tents or membrane structures provided the area does not exceed 400 square feet or
900 square feet if a minimum of two sides are open.
18. Re-roofing of existing buildings with similar materials regardless of value with the exception of
tile roofs.
2006 International Building Code
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Section 105.2 Work exempt from permit (Electrical). REVISE the Electrical section by ADDING a
new fourth paragraph section to read:
Other items:
1. Power for amusement devices and carnival rides in place on a site for less than 30 calendar days
and not connected to a utility company's facilities.
2. Repair or replacement of fixed motors and transformers of the same type and rating in the same
location.
3. Temporary decorative lighting.
4. Repair or replacement of current-carrying parts of any switch, contactor, control device, or
overcurrent device of the required capacity in the same location.
5. Electrical wiring, devices, appliances, apparatus or equipment operating at less than 25 volts and
not capable of supplying more than 50 volt-amps of energy except lighting devices that must meet
the requirements of the lighting code.
Section 105.2 Work exempt from permit (Mechanical). REVISE the Mechanical section by ADDING
new item number 8 as follows:
8. Replacement of evaporative coolers with like coolers.
Section 105.3 Application for Permit. REVISE section by ADDING a new item 8 to read:
8. Identify the name of the person or contractor who will perform the work. When a licensed
contractor is required by A.R.S., identify the state license number and Marana Business license
number of all the contractors and subcontractors.
Section 105.3.2 Time limitation of application. REVISE section by DELETING the phrase fragments
"180 days" and "90 days" and respectively REPLACING these with "365 days" and "180 days".
Section 105.5 Expiration. REVISE section by DELETING all occurrences ofthe phrase fragment "180
days" and REPLACING them with "365 days".
Section 106.3.2 Previous approvals. REVISE section by DELETING the phrase fragment "180 days"
and REPLACING it with "365 days".
ADD new section 108.3.1 to read:
Section 108.3.1 Model plans. When two or more buildings, structures, or systems of regulated
equipment are built without substantial modifications, as defined by the Building Official, an applicant
may apply for a model plan permit. This permit shall be charged plan review fees with additional fees for
each exterior design elevation. The number and type of accepted revisions/options per model plan shall be
as determined by the Building Official. The model plan shall be designed for a specific subdivision(s)
and may be used in that subdivision(s) without being subject to renewal until that subdivision is built out.
Models designed to be used in any location allowed by soil conditions shall be valid only until the next
code change adopted by the Town.
Section 108.4 Work commencing before permit issuance. REVISE section by ADDING a new
sentence at the end of the paragraph to read:
The additional fee shall be equal to the required permit fee.
Section 110.1 Use and occupancy. REVISE section by ADDING a second paragraph to read:
2006 International Building Code
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A valid certificate of occupancy shall be required for all buildings, excluding International Residential
Code structures, currently in use within the jurisdiction. This includes structures placed in operation prior
to being subject to building codes regulations.
110.2 Certificate issued. REVISE section by ADDING a new sentence at the end ofthe section to read:
Exception: Approved final inspections for International Residential Code and group "u" occupancy
structures shall constitute the certificate of occupancy.
ADD new section 110.3.1 to read:
110.3.1 Occupancy bonds required. Written assurance of compliance with this code, with the condition
of temporary occupancy granted by the Building Official, and with the temporary occupancy time limit
shall consist of a cash deposit or a performance bond in the penal sum of one thousand dollars
($1,000.00) or the amount equal to one percent (1 %) ofthe value determined pursuant to Section 108.3,
whichever is greater but not to exceed twenty thousand dollars ($20,000.00), payable to the jurisdiction
and executed by a surety company qualified to execute surety bonds in the State. Each bond shall be joint
and several and conditioned that the principal in the bond will faithfully conform to this code for which
the temporary occupancy authorization is to be issued. The principal and surety named in such bond shall
be jointly and severally bound unto the jurisdiction, and to any and every other person aggrieved or
damaged by any breach of the condition of the bond. The bond shall not be void upon any recovery or
recoveries totaling less than the whole penalty but may be used and recovered upon from time to time
until the whole penalty is exhausted. The term of the obligation of such bond shall be for a period that the
authorization is outstanding and may be held for thirty days thereafter when required by the Building
Official, except that if at the expiration of said thirty days, the jurisdiction has reason to believe that there
is an action or claim impending or that there is a legal action pending which relates to the bond, the
jurisdiction shall retain the bond until final disposition of such matter or matters.
Exception: owner built/owner occupied single family dwellings.
ADD new section 111.2.1 to read:
Section 111.2.1 Construction power. Construction power is a privilege granted under the jurisdiction for
convenience during construction. Construction power may be from either temporary power poles or
through the permanent power panel. Each 120 Volt circuit used for construction power shall be GFCI
protected. Construction power may be revoked at anytime upon cause by the Building Official.
Section 115.5 Restoration. REVISE by REPLACE the last sentence with: "All repairs to the structure
shall be in accordance with the current Building Codes. Repairs must begin within one year from the date
of notice of violation or unsafe condition. All structures that are left in an unsafe condition for more than
a year will be issued a notice of condemnation and an order to demolish. The Town may take any action
under the law to ensure unsafe structures are removed and the site made safe."
Add new definition Section 202 Definitions.
Temporary. A period oftime not to exceed 30 consecutive days.
Section 303 Assembly Group A, A-2 Restaurants, REVISE to read: with an occupant load of more than
20. Less than 20 are a B occupancy.
Section 308.2 Group 1-1. REVISE section by DELETING all occurrences of the number "16" and
REPLACING them with "10".
2006 International Building Code
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Section 310.1 Residential Group R. Subsection R-3
REVISE Subsection R-3 by DELETING "congregate living facilities with 16 or fewer persons". And:
"Adult and child care facilities that are within a single-family home are permitted to comply with the
IRe." and
REVISE Subsection R-4 by DELETING all text in paragraphs R-4 and REPLACING with the
following:
Residential occupancies shall include buildings arranged for occupancy as residential care/assisted living
facilities who because of age. mental or physical disability. or other reasons. live in a supervised
residential environment which provides care licensed by Arizona Department of Health Services. These
occupancies shall meet the requirements for construction as defined in Marana Ordinance 2006.17.
ADD new section to read:
Section 508.4 Liquid spill protection
When mixed occupancies share a common floor slab the bottom plate shall be make liquid tight to
prevent the passage of fluids from one space to the other.
Section 903.2.2 Group E. REVISE section by DELETING all text and REPLACING with the following:
An automatic fire sprinkler system shall be provided throughout all Group E Occupancies.
Exception: One story buildings when each room used for instruction has at least one exit door directly to
the outside at ground level, and when rooms used for assembly purposes have at least one-half of the
required exits directly to the exterior ground level, an automatic sprinkler system need not be provided.
Section 903.2.3.2 Group F-1. REVISE #2 by REPLACING the word "three" with the word "two".
Section 903.2.6.2 Group M. REVISE #2 by REPLACING the word "three" with the word "two".
Section 903.2.8.2 Group S-1. REVISE #2 by REPLACING the word "three" with the word "two".
Section 903.2.10.1 Stories and basements without openings. REVISE section by DELETING the first
paragraph and REPLACING it with the following:
An automatic sprinkler system shall be installed throughout every story of all buildings where the floor
area exceeds 1500 square feet, and all basements regardless of size, where there is not provided at least
one ofthe following types of exterior openings:
Section 903.3.1.1.1 Exempt locations. REVISE section by DELETING item 4.
Section 903.3.1.2.1 Balconies. REVISE section by DELETING all text following the first sentence.
Section 904.11.2 System interconnection. REVISE section by DELETING the period at the end ofthe
first sentence and ADDING the following:
"and to all electrical receptacles located within the perimeter of the protected exhaust hood."
Section 1011.2 Sign illumination. REVISE section by ADDING the following sentence to the end ofthe
first paragraph:
Floor level exit signs, when exit signs are required, additional approved low-level exit signs which are
internally or externally or self-illuminated shall be provided in all interior corridors serving guest rooms
of hotels in Group R-1 occupancies.
2006 International Building Code
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REVISE Section 1610.1 to read:
Section 1610.1.1 Soil Lateral Loads
Add after foundation: " ,pool shells, "
Section 1704.5 Masonry construction. REVISE section by DELETING Exception 2 and REPLACING
with the following.
Exception 2: Nonessential facilities designed in accordance with Section 2107 with allowable masonry
stresses reduced by one half and the maximum value of fm limited to 1500 psi for concrete or clay
masonry. The following limitations shall apply to this exception:
1. The unsupported height (or length)-to-thickness ratio of a building wall shall not exceed 20.
2. The soil retaining height for a retaining wall shall not exceed 4' -0" measured from the top of
footing for an 8-inch-thick wall or 6' -0" for a 12-inch-thick wall.
3. The height-to-thickness ratio shall not exceed 10 for a cantilevered masonry fence or
combination masonry fence and retaining wall as measured from the top of footing to the top of
wall. If a combination retaining/fence wall consists of more than one wall thickness, the smallest
thickness shall be used in determining the height-to-thickness ratio.
Any portion or portions of a structure in which the design masonry stresses exceed one half the allowable
masonry stresses, shall require Special Inspection for that portion or portions of the structure.
Table 1804.2 REVISE by changing values:
Under "Lateral Bearing" change the 200 value to 250 and the 150 value to 200
Add footnote designation "e" after "Allowable Foundation Pressure"
Add footnote "e" stating: "isolated footings shall use 1,000 psffor design unless a soils report is
provided. "
Section 1805.2 Depth of footings. REVISE section by DELETING the first sentence and REPLACING
it with the following:
The minimum depth of footings below the undisturbed ground surface shall be 12 inches for 1000 psf
maximum allowable foundation pressure and minimum 18 inches for maximum allowable foundation
pressure values of Table 1804.2.
ADD new section 1901.2.1 to read:
Section 1901.2.1 Allowable stress design. Structural concrete may be designed in accordance with ACI
318-99 Appendix A: Alternate design method.
Section 1910.1 General. REVISE section by ADDING the following after the first sentence in exception
5:
In the absence of a geotechnical report, vapor barriers are not required provided a minimum 4 inch
aggregate base course is installed beneath the on-grade slab.
EARTHEN STRUCTURES
Table 720.1(2). REVISE table by ADDING the following:
Material Item Construction 4 hour 3 hour 2 hour 1 hour
1 a Earthen Walls la-1.1 Solid wall construction 14 12 10 8
utilizing earth as the
structural wall
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DELETE Sections 2109.8 through 2109.8.4.7 Except: Table 2109.8.3.1 Allowable shear on bolts in
adobe masonry, which shall be renumbered Table 2114.6.B.
ADD new section 2114 to read:
Section 2114 Earthen structures.
Section 2114.1 General. Earthen structures with any site condition may be designed with accepted
engineering practice for earthen wall structures and with the provisions of this section.
Section 2114.1.1 Earthen materials. This section shall establish minimum standards for safety for
construction of earthen materials structures, collectively known as adobe, burnt adobe, rammed earth, and
hydraulic pressed unit construction.
Section 2114.1.2 Professional registration required. Plans and specifications designed under the
provisions of Section 2114 shall be prepared by a registered professional architect or engineer licensed in
the state for which the project is to be constructed.
Section 2114.2. Minimum thickness. The minimum thickness of earthen structures shall be designed to
limit tension to zero unless tensile reinforcement is provided. Walls shall be designed to meet forces
prescribed by Chapter 16. The measurement of height of walls shall be the distance between points of
lateral support. Wall thickness shall be measured from face to face of each wall withe. The thickness of
walls using raked joints shall be the surface to surface distance of the mortar joints. The withes of wall
sections shall not be combined without cross bonding of the masonry units throughout the structural
element. Cross bonding shall mean overlapping of not less than 1/3 of the dimension of the masonry
units.
Section 2114.3 Support conditions. Earthen structures shall be supported on a solid concrete, solid
masonry foundation system the width of which shall be not greater than 1/2 inch narrower than the
earthen structure which it supports. Earthen structures shall not be less than 6 inches above adjacent
grade.
Section 2114.4 Corbeled wall elements. The maximum corbeled projection beyond the face ofthe wall
shall not be more than 4 inches. Such corbeled projections shall add additional thickness to the wall, the
opposite face of the wall remaining plane with the primary wall plane.
Section 2114.5 Moisture barrier. A moisture barrier equal to 30 lb. asphalt impregnated building paper,
or equivalent moisture resistant barrier, shall be installed between the supporting foundation and the
earthen material.
Section 2114.6 Allowable stresses. Allowable compressive, tensile and shear stresses in earthen
structures shall not exceed the values prescribed in Table 2114.6.A. In determining the stresses, the
effects of all loads and conditions of loading and the influence of all forces affecting the design and
strength of the several parts shall-be considered. Bolt values shall not exceed those set forth in Table
2114.6.B.
Section 2114.6.1 Combined units. In walls composed of different kinds or grades of units, materials or
mortars, the maximum stress shall not exceed the allowable stress for the weakest of the combination of
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units, materials and mortars of which the wall is composed. The net thickness of any facing unit of
earthen materials used to resist stress shall not be less than 3 inches (76 mm).
When dissimilar materials, (e.g. concrete masonry or steel) is used to support earth wall construction,
such elements shall be structurally isolated from other earth wall elements. The design shall recognize,
with specific detailing, the effects shrinkage of the earth wall construction may have on the structural
integrity of the structure.
TABLE2114.6.A
ALLONABLESlRESSES FCR EMPIRICAL CESIG\I CF EARll-ENWALL SlRUCTURES
ALLONABLE STRESSES
STREI'JGTH a= UNIT, moos AREA moos CRCSSSECllGlAL AREA NOTE 1
Compression
300 psi
Normal Loading
Concentrated Loading
30psi
45 psi
Modulus of rupture
55 psi
Allowable tension without
tensile reinforcing
o psi
Shear
n.a.
With special inspection
Without special inspection
8 psi
4psi
Modulus of Elasticity
60,000 psi
Allowable Deflection
Less than 1/2%
For SI: 1 pound per square inch = 6.895 kPa.
Notes:
1. Gross cross-sectional area shall be calculated on the actual rather than
the nominal dimensions.
Table 2114.6.B REFER to IBe Table 2109.8.3.1
Section 2114.7 Lateral support. Earthen walls shall be laterally supported in the vertical direction and
at intersection with other earthen walls. Support at the top of the wall shall in accordance with one of the
methods in Section 2114.7.1 or Section 2114.7.2..
Section 2114.7.1 Bond beams. A continuous bond beam system embedded in the earthen walls, designed
to provide lateral support for the walls without the aid of additional bracing elements such as roof
diaphragm. Bond beams of concrete or masonry shall be not less than the width of the wall minus 6
inches.
Section 2114.7.1.1 Bond beam anchorage. Bond beams shall be anchored to earthen walls at intervals
of not over 48 inches by a connection with shear strength of not less than the shear forces in both
directions. The shear between a cast in place concrete bond beam and the earthen wall shall not exceed
1/8 the dead load at the base of the bond beam unless alternate attachment is provided compatible with
the allowable stresses in Table 2114.4.A or 2114.4.B.
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Section 2114.7.2 Roof diaphragm. A roof diaphragm complying with other provisions ofthis code
adequate to provide lateral support may be used to brace earthen walls. Anchorage shall be tie beams as
specified in Section 2114.7.2.2 or other anchorage methods of equal strength.
Section 2114.7.2.1 Tie beams. A tie beam is a beam built into the earthen wall for the purpose of
anchoring the roof diaphragm and transferring the lateral perpendicular and parallel forces. Tie beams
shall be provided for all earthen walls laterally braced by a roof diaphragm.
Section 2114.7.2.2 Tie beam anchorage. Tie beams shall be anchored to earthen walls at intervals of
not over 48 inches by a connection with shear strength of not less than the shear forces in both directions.
The shear between a cast in place concrete or masonry tie beam and the earthen wall shall not exceed 1/8
the dead load at the base of the bond beam unless alternate attachment is provided compatible with the
allowable stresses in Table 2114.4.A or 2114.4.B.
Section 2114.8 Lintels. Earthen walls over openings shall be supported by steel lintels, reinforced
concrete or masonry lintels or earthen material arches designed to support load imposed. Lintels shall not
be supported by rigid structural columns, frames or posts with rigidities greater than the earthen wall
unless the design allows for the potential for differential settlements. Small openings less than 12" may be
constructed without structural lintels.
Section 2114.9 Shear walls. Earthen walls subject to in-plane loads shall be designed to be tension free
unless tensile reinforcement is provided. Solid panels less than 4 feet shall not be considered shear walls.
Section 2114.10 Opening jambs. Portions of walls between openings shall be constructed with lengths
of not less than 1 Y2 times the thickness of the wall in which they occur.
Section 2114.11 Freestanding piers. Piers independent of earthen walls shall be designed to support
vertical and horizontal loads unless braced by other elements ofthe structure. Tensile reinforcement shall
be provided where tension occurs. When structural posts or columns are provided within the pier ties or
attachments shall be provided to the earthen wall system to laterally secure it.
Section 2114.11.1 Pier cap. A solid concrete cap shall be provided at the top ofload bearing piers under
all concentrated loads. The cap shall cover not less than 50% ofthe top ofthe pier.
Section 2114.12 Chases. Chases and recesses in earthen walls shall not be deeper than one-third the
thickness of the wall thickness. The maximum length of a horizontal chase or horizontal projection shall
not exceed 4 feet (1219 mm), and shall have at least 8 inches (203 mm) of earthen construction in back of
the chases and recesses and between adjacent chases or recesses and at least 12 inches (305 mm) between
the chase and the jambs of openings.
Chases and recesses in earthen walls shall be designed and constructed so as not to reduce the required
strength or required fire resistance of the wall and in no case shall a chase or recess be permitted within
the required area of a pier. Earthen walls directly above chases or recesses wider than 16 inches (305
mm) shall be supported on noncombustible lintels.
Section 2114.13 Stack bond. When the earthen wall is constructed of units, (e.g. adobe brick), units
shall not be laid in stack bond. Units shall, in all locations throughout the wall system, overlap the
courses below by not less than one-third the dimension of the units.
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Exception: Ornamental non-structural elements may be laid in stack bond if properly tied to the main
structure.
Section 2114.14 Metal reinforcement. All walls shall be anchored at their intersections, at vertical
intervals of not more than 16 inches with joint reinforcement of at least 9 gage when using earthen units
(e.g. adobe block). Horizontal reinforcement shall be used throughout the wall system and be continuous
at the intersections. Reinforcement used throughout the wall system shall be not more than 4 inches
narrower than the wall thickness.
Section 2114.15 Veneer. All veneers using earthen materials shall be installed in accordance with this
section. Such veneers shall be installed with a noncombustible foundation, over concrete masonry, a
backing of wood or cold-formed steel and the veneer shall be not less than 4 inches (101 mm) or greater
than 8 inches in thickness.
Section 2114.15.1 Anchorage. Earth units shall be anchored to the supporting wall with a corrosion-
resistant veneer tie system mechanically attached to continuous horizontal joint reinforcement
continuously installed in the veneer bed joint not less than 16 inches on center vertically. When earth
mortar systems are used the tie system shall prevent the accumulation of mortar at the base of the veneer.
Conventional brick ties shall not be used to anchor earth units.
Section 2114.15.2 Air space. The veneer shall be separated from the sheathing by an air space of a
minimum of 1 inch but not more than 2 inches. A weather-resistant membrane or 15 lb. asphalt-saturated
felt by shall be provided except when veneer is applied over concrete masonry or concrete backing.
Section 2114.15.3 Flashing. Approved corrosion-resistive flashing shall be provided in the exterior wall
envelop in such a manner as to prevent entry of water into the wall cavity or penetration of water into the
building structural framing components. The flashing shall extend to the surface of the exterior wall
finish and shall be installed to prevent water from reentering the exterior wall envelope. Flashing shall be
located beneath the first course of veneer, and at other points of support, including structural floors, shelf
angles and lintels. Approved corrosion-resisting flashing shall be installed at all of the following
locations:
At top of all exterior window and door openings in such a manner as to be leak proof.
At the intersection of chimneys or other masonry construction with frame or stucco walls, with projecting
lips on both sides under stucco copings.
Under and at the ends of masonry, wood or metal copings and sills.
Where exterior porches, decks or stairs attach to a wall or floor assembly of wood - frame construction.
At wall and roof intersections.
Section 2114.15.4 Weep holes. Weep holes shall be provided in the outside withe of masonry walls at a
maximum spacing of33 inches on center. Weep holes shall not be less than 3/16 inches in diameter.
Weep holes shall be located immediately above the flashing.
Section 2114.16 Buttresses. Earthen walls used as buttresses shall not extend beyond an average length
perpendicular to the wall to be braced a distance of 6 feet without consideration to out-of-plane bending
of the buttress.
Section 2114.17 Gable End Walls. Gable end walls shall be constructed using veneer construction as
required by Section 2114.15 or shall be provided with lateral bracing to prevent overturn.
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Section 2114.18 Ledgers. Ledgers shall not be used to support vertical live and dead loads in excess of
75 Ibs. per lineal foot unless the tension in the wall due to bending from out-of-plane loads and the
eccentric load from the ledger is zero.
Section 2114.19 Material standards. The materials used in earthen wall structures shall comply with the
following material standards. For each of the tests prescribed in these standards, five full size sample
units shall be selected at random from each lot of units of fraction thereof produced. Mass wall systems
such as rammed earth shall provide five tests for each required standard test series.
Section 2114.19.1 Manufacturers of earthen materials. Established manufacturers of earthen materials
shall certify compliance with these standards. Copies of their periodic testing shall be supplied to the
building official when requested. Literature, advertising and other information supplied by the
manufacturer to designers and users of earthen materials shall include the actual dimensions of units, not
nominal dimensions.
Section 2114.19.2 Onsite earthen materials. Earthen units, mortar, rammed earth wall materials mined,
mixed, formulated, and or molded on site shall be tested for compliance with these standards. For
individual structures, a set of tests shall be provided for the first 2500 square feet of wall and an
additional test for each additional 2500 square feet or portion thereof in the structure. At least one set of
tests shall be made for each structure and for each 2500 square feet of patio wall. The fabricator of the
materials used in the project shall certify in writing to the building official compliance with these
standards. The certification shall include the number of units site molded, size of the units, volume of
material used as mortar, dates of fabrication, and results of testing of the material. Ifmaterials from
established manufacturers and onsite materials are used in the project, copies of records including
sources, quantities, and location of use within the structure shall be provided to the building official upon
request.
Section 2114.19.3 Categories of earthen materials. Type I, II, III, and IV earthen materials are
approved for use in construction of projects designed in accordance with Section 2114.
Exception: Type I adobe shall only be used for repairs and small additions in which new walls do not
exceed 10% of the surface area of existing walls of Type I construction and for structures constructed of a
similar material system and for projects requiring this class of materials to meet historic guidelines.
Required plaster veneer. Adobe of Type I and II shall be protected on the exterior with exterior plaster
meeting the requirements ofIBC Section 2512 applied over wire lath. Type I and II adobe shall not be
used within 4 inches of the floor or at the top of parapet walls or near potential sources of water which
may effect the stability of the earth wall system. Other Types of adobe may be left unplastered and may
be used without separation from the floor.
Adobe units and mortar. Moisture resistant stabilized adobe units and mortar shall meet the following
testing standards as indicated in Table. Type S portland cement mortar may be used for Type II, III, and
IV adobe in lieu of earth mortar.
2006 International Building Code
Page 11 of 15
Table 2114.16.3.1
I
II
III
IV
=.....
.s ~
~~
~..c
l:l.~
~e~
r.. 0 .....
~UM
X
X
X
=
o
....
.."
.."
~
lo.
l:l.
... e
~ 0
~U
X
~
.....
~ ~
lo.... .
== = \C
...~~
.~ = ~
o 0.....
~U~
X
X
X
X
Material
Type
X
X
X Indicates that material must pass the test standards prescribed in this Section.
Section 2114.19.3.3 Dry compression strength. Determine the compressive strength of the required
number of samples as required by Section 2114.19. in accordance with the following procedures.
Section 2114.19.3.3.1 Dry the specimen. Dry the specimen at a temperature of850 F.+-150 F. (290 C. +-
90) in an atmosphere having relative humidity of not more than 50 percent. Weigh the specimen at one-
day intervals until constant weight is attained.
Section 2114.19.3.3.2 Cap the specimen. The specimen may be suitably capped with calcined gypsum
mortar or the bearing surfaces may be rubbed smooth and true. Then calcined gypsum is used for
capping, conduct the test after the capping has set and the specimen has been dried to constant weight in
accordance with Item 1 of this section.
Section 2114.19.3.3.3 Test the Specimen. Test the specimens in the position in which the earthen unit is
designed to be used. And bed on and cap with a felt pad not less than 1/8 inch (3.2mm) or more than ~
inch in thickness.
Section 2114.19.3.3.4 Testing equipment. The loading head shall completely cover the bearing area of
the specimen and the applied load shall be transmitted through a spherical bearing block of proper design.
The speed ofthe moving head ofthe testing machine shall not be more than 0.05 inch per minute.
Section 2114.19.3.3.5 Reporting results. Calculate the average compressive strength ofthe specimens
tested and report this as the compressive strength of the block. Units shall have an average dry
compressive strength of 300 psi (2068 kPa) and no individual unit may have a strength ofless than 250
psi. (1724 kPa).
Section 2114.19.4 Wet compression strength. Determine the compressive strength of the required
number of specimen as required by Section 2114.19. in accordance with the following procedures.
Section 2114.19.4.1 Cap the specimen. The specimens may be suitably capped with a capping material
compatible with water saturation or the bearing surfaces may be rubbed smooth and true.
2006 International Building Code
Page 12 of 15
Section 2114.19.4.2 Wetting the specimen. Submerge the specimen under water for not less than 8
hours or longer as required until fully saturated.
Section 2114.19.4.3 Test the specimen. Immediately test the specimen in the position in which the
earthen unit is designed to be used. And bed on and cap with a felt pad not less than 1/8 inch (3.2mm) or
more than ~ inch (6.4mm) in thickness.
Section 2114.19.4.4 Testing equipment. The loading head shall completely cover the bearing area of the
specimen and the applied load shall be transmitted through a spherical bearing block of proper design.
The speed of the moving head of the testing machine shall not be more than 0.05 inch (1.27mm) per
minute.
Section 2114.19.4.5 Reporting results. Calculate the average compressive strength of the specimens
tested and report this as the compressive strength of the block. Adobe units shall have an average wet
compressive strength of 300 psi (2068 kPa). Five samples shall be tested and no individual unit may have
a wet compressive strength ofless than 250 psi. (1724 kPa).
Section 2114.19.5 Modulus of rupture. Adobe units shall have an average modulus of rupture of 50 psi
(345 kPa) when tested in accordance with the following procedure. Five samples shall be tested and no
individual unit shall have a modulus of rupture ofless than 35 psi (241 kPa).
Section 2114.19.5.1 Support conditions. A cured unit shall be simply supported by 2-inch-diameter (51
mm) cylindrical supports located 2 inches (51 mm) in from each end and extending the full width ofthe
unit.
Section 2114.19.5.2 Loading conditions. A 2-inch-diameter (51 mm) cylinder shall be placed at
midspan parallel to the supports.
Section 2114.19.5.3 Testing procedure. A vertical load shall be applied to the cylinder at the rate of 500
pounds per minute (37 N/s) until failure occurs.
Section 2114.19.5.4 Modulus of rupture determination. The modulus of rupture shall be determined
by the formula:
Fr = 3WLs12bt2 (Equation 2116.3.1.3.4-1)
Where, for the purposes of this section only:
b = Width ofthe test specimen measured parallel to the loading cylinder, inches (mm).
fr = Modulus of rupture, psi (Mpa).
Ls = Distance between supports, inches (mm).
t = Thickness of the text specimen measured parallel to the direction of load, inches (mm).
W = The applied load at failure, pounds (N).
Section 2114.19.6 Absorption less than 2.5%. A 4-inch (102 mm) cube, cut from an adobe unit fried to
a constant weight in a ventilated oven at 212 degrees F to 239 degrees F , shall not absorb more than 2 ~
percent moisture by weight when placed upon a constantly water-saturated, porous surface for 7 days. A
minimum of five specimens shall be tested and each specimen shall be cut from a separate unit.
2006 International Building Code
Page 13 of 15
Section 2114.19.7 Absorption less than 5.0%. A 4-inch (102 mm) cube, cut from an adobe unit fried to
a constant weight in a ventilated oven at 212 degrees F to 239 degrees F , shall not absorb more than 2 Y2
percent moisture by weight when placed upon a constantly water-saturated, porous surface for 7 days. A
minimum of five specimens shall be tested and each specimen shall be cut from a separate unit.
Section 2114.19.8 Additional requirements. All earthen units shall meet the following requirements.
Section 2114.19.8.1 Moisture content requirements. Earthen units shall have a moisture content not
exceeding 4 percent by weight at the time of use.
Section 2114.19.8.2 Shrinkage cracks. All earthen units shall not contain more than three shrinkage
cracks and any single shrinkage crack shall not exceed 3 inches (76mm) in length or 1/8 inch (3.2mm) in
width.
Section 2114.19.8.3 Soil requirements. Soil used for moisture resisting adobe units and mortar shall be
chemically compatible with the stabilizing material. The soil shall contain sufficient clay to bind the
particles together without the aid of stabilizers. The soil shall contain not more than 0.2 percent of water-
soluble salts.
Section 2114.19.9 Cement stabilized rammed earth. Cement stabilized Rammed Earth shall meet the
following standards. The installer of the wall system shall comply with the requirements of Section
2114.19.2 for frequency of testing.
Section 2114.19.9.1 Testing before construction. The installer of cement stabilized Rammed Earth shall
provide the following testing before issuance of a building permit.
Section 2114.19.9.2 Materials from a licensed sand and gravel producer. A copy of Proctor ASTM D
698 shall be provided for each soil type and source or combination of sources. Periodic testing as
provided by the supplier may be supplied to meet this requirement. The soil contain not more than 0.2
percent of water-soluble salts.
Section 2114.19.9.3 Material mined and mixed on site. A copy of ASTM D 698, ASTM C 117, ASTM
C 136, and ASTM D 4318 shall be provide for each soil type and source or combination of sources. Such
tests shall be repeated as required to assure that all materials to be used have been tested and are
represented by the tests. The soil shall contain not more than 0.2 percent of water-soluble salts.
Section 2114.19.9.4 Testing required during construction. The installer of cement stabilized Rammed
Earth shall provide the following tests made during the construction process. A certified testing
laboratory shall provide field density tests for comparison to the pre-construction Proctor ASTM D 698,
percent moisture ASTM D 2216, dry density ASTM D 698, and percent moisture ASTM D 1556.
Cement Stabilized Rammed Earth walls shall meet or exceed 95% maximum dry density (ASTM D 698).
Samples taken from the wall shall exceed 300 psi compression (ASTM D 1633) 14 days after placement.
Section 2308.10.1 Wind uplift. REVISE section by ADDING the following:
Uplift resistance shall be determined by either method 1 or 2 below:
1. Design-based wind uplift criteria
Wind uplift requirements shall be determined by using the design wind value of 110 mph within Table
2006 International Building Code
Page 14 of 15
2308.10.1 for the continuous load path transmitting the uplift forces from the rafter or truss ties to the
foundation.
2. Prescriptive Uplift resistance. REVISE section by DELETING both paragraphs and ADDING the
following:
All rafters and trusses shall be tied down to their supporting member by a metal connector with a
minimum design Uplift resistance of at least 400 pounds. Load paths will be constructed to be
continuous to the foundation.
Section 2406.3 Hazardous locations. REVISE section by DELETING items 5 and 6 and REPLACING
them with the following:
5. Glazing in any room containing a hot tub, whirlpool, sauna, steam room, bathtub,or shower where
the bottom exposed edge of the glazing is less than 60 inches above a standing surface (ARS 936-1631).
6. Glazing, in an individual fixed or operable panel adjacent to a door where the nearest exposed
edge of the glazing is within a 24 inch arc of either vertical edge of the door in the closed position,
and where the bottom edge of the glazing is less than 60 inches above the walking surface; or
where the nearest exposed edge of the glazing is within a 36 inch arc of either vertical edge of the
door in the closed position and where the bottom edge of the glazing is less than 18 inches above
the walking surface (ARS 936-1631).
Table 2902.1 Minimum number of required plumbing fIXtures. REVISE items number 2 and 6 by
ADDING the following: Service sinks shall not be required for business and mercantile classifications
equal to or less than 1500 square feet.
REVISE all entries under the column "Drinking fountain" by adding footnote: d. drinking fountains
required within this table may be replaced with Bottled Water service in all areas except public areas.
Section 3109 Swimming pool enclosures and safety devices. DELETE this section in its entirety.
Adopt Appendix C, E with ADAAG 1998, and I.
2006 International Building Code
Page 15 of 15
'1- r(: =;/~:~_1 ,..VJ
Town of Marana
Amendments to the:
2006 International Plumbing Code
Section 101.1 Title. Add within brackets: "Town of Marana"
Section 305.6.1 Sewer depth. INSERT [number] as "12" in both locations.
Section 312.1 Required tests. REVISE section by DELETING the phrase fragment ", for piping
systems other than plastic," from the first sentence.
Section 312.5 Water supply system test. REVISE section by DELETING the phrase fragment ", for
piping systems other than plastic," from the first sentence.
Section 314.2.1 Condensate disposal. REVISE section by ADDING the following at the end ofthe
paragraph:
Condensate disposal shall be allowed to terminate as follows:
1. Into an approved fixture tailpiece, funnel drain, waste air gap fitting, floor sink, slop sink
and laundry tray.
2. At or below grade outside the building in an area capable of absorbing the condensate flow
without surface drainage.
3. Over roof drains that connect to drainage pipes, provided they terminate at or above grade in
an area capable of absorbing the condensate flow without surface drainage.
Section 314.2.2 Drain pipe materials and size. REVISE section by DELETING: "an approved
method" and ADDING the following table:
Equipment Capacity
Up to 10 tons of refrigeration
11 to 20 tons
21 to 40 tons
41 to 100 tons
Over 100 tons
Minimum Condensate Pipe Diameter
% inch
1 inch
1 l;4 inch
1 ~ inch
2 inch
When two or more units are tied together, the minimum drain size shall be 1".
ADD the following after "uniform slope", "not less than 307.1"
2006 International Plumbing Code
Page I of2
ADD new section 504.6.1 to read:
Section 504.6.1 Replacement water heaters. Replacement water heaters shall comply with the
following when it is not feasible to run the Temperature and Pressure relief valve line to the exterior of
the residence:
1. A drain pan shall be installed under the water heater.
2. The temperature relief valve shall be set to a maximum of 21 0 degrees and the pressure relief
valve to 150psi with a line draining into the pan.
3. A pressure relief valve set at no greater than 125psi shall be installed at the main water supply
connection outside the dwelling.
Section 608.16.4 Connections to automatic fire sprinkler systems and standpipe systems.
REVISE section by DELETING all text therein and in subsection 608.16.4.1 and REPLACING it with
the following:
The potable water supply to automatic fire sprinkler and standpipe systems shall be protected against
backflow in accordance with Marana Town Code Section 14-30.
Appendix B Rates of rainfall for various cities. REVISE appendix by ADDING "Tucson..... 3.0"
under "Arizona".
2006 International Plumbing Code
Page 2 of2
Town of Marana
v.
Amendments to the:
2006 International Residential Code
RIOI.I Title. Add: "Town of Maran a" as name of adopting jurisdiction.
Table R301.2(I) Climatic and geographic design criteria. INSERT as follows:
Ground Snow Load
Less 4000 ft 0 psf
Wind Speed
90 mph
Seismic Design
Category B
Weathering
Negligible
Frost Line Depth
none
Termite
Moderate to Heavy
Decay
None to Slight
Winter Design Temperature
33 deg
Flood Hazards
Per Engineering Dept Standards.
Section R301.2.2.2.2 Irregular buildings. REVISE section by ADDING "B," in front of"C" in the
first paragraph.
Table 301.5 Minimum Uniformly Distributed Live Loads. REVISE Table 301.5 in part as follows~
TABLE R301.5
MINIMUM UNIFORMLY DISTRIBUTED LIVE LOADS
USE
Attics with limited storage ,g,
Sleeping rooms
LIVE LOAD
;W40
~40
(other sections and uses in table to remain unchanged)
(footnotes a through fto remain unchanged)
2006 International Residential Code
Page I of 28
G. For attics with limited storage and constructed with trusses TRUSSED SYSTEMS, this live
load. .. (balance of footnote g, and footnotes h, and i, to remain unchanged)
Section R303.3 Bathrooms. REPLACE the section and exception with:
SectionR303 .3 Bathrooms and Kitchens. Bathrooms, water closet compartments, Kitchens and other
similar rooms shall be provided with mechanical exhaust systems. The minimum ventilation rates for
bathrooms, kitchens, and similar spaces shall be per Table M1507.3
Section R308.4 Hazardous locations. REVISE section by DELETING items 5 and REPLACING with
the following:
5. Glazing in any room containing a hot tub, whirlpool, sauna, steam room, bathtub, and shower
where the bottom exposed edge of the glazing is less than 60 inches above a standing surface
(ARS S36-1631).
Section R309.1 Opening protection. REVISE section by ADDING the following to the end ofthe
paragraph:
Such doors shall be self-closing and self-latching.
Section R311.4.3 Landings at doors. REPLACE section with:
R411.4.3 Landings at doors. There shall be a floor or landing on each side of each exterior door. The
floor or landing at an exterior door shall be flush with the interior finish floor elevation, or a minimum
of 4 inches (52 MM) lower than the top ofthe threshold. When located lower than the threshold, the
door, other than an exterior storm or screen door, shall not swing over the landing. The landing shall be
permitted to have a slope not to exceed 0.25 units vertical in 12 units horizontal (2 percent).
Section R312.3 Paths of travel. ADD new section by inserting:
Section R312.3 Path of Travel is any sidewalk, stair or path leading from the home to a pool, spa,
ramada, or other habitable structure. Changes in elevation, stairs, handrails and guards shall conform to
the Residential Building Code. Paths adjacent on elevated areas must be provided with guards when
within two feet of the drop or slope exceeding 1 in 2. Stairs or steps leading to the pool area or leading
to raised areas around pools and spas shall be provided with a handrail when there is more than one riser
unless the tread is more than 24 inches between risers. Stairs and handrails must meet the provisions of
the Residential Building Code. Hand rails in this section are in addition to those required for exiting the
pool. Walking surfaces shall be non skid in pool areas.
Section R313.2 Location. REVISE section by adding:
4. Where the ceiling height of a room open to the hallway serving selleping areas exceeds that of the
hallway by 24 inches (610 MM) or more, smoke alarms shall be located in the hallway and in the
adjacent room.
Figure R403.1.7.1 Foundation Clearances from Slopes. DELETE figure and REPLACE with 2006
International Building Code Figure 1805.3.1 Foundation Clearances from Slopes.
Section R403.1 General. REVISE section by INSERTING the following at the end ofthe paragraph:
Footings and monolithic foundation slab turndowns shall have minimum reinforcement consisting of
one No.4 bar located a minimum of 3 inches (76mm) clear from the top ofthe footing. Masonry and
concrete stemwalls shall have minimum reinforcement in accordance with Section R606.1.1 and with
vertical reinforcement installed in the footing with a standard hook.
2006 International Residential Code
Page 2 of 28
Section 602.10.3 Braced wall panel construction methods. REVISE by DELETING subsection #1.
Delete all references to this method in all related tables and sections.
Section R802.11.1 Uplift resistance. REVISE section by DELETING both paragraphs and ADDING
the following:
All rafters and trusses shall be tied down to their supporting member by a metal connector with a
minimum design Uplift resistance of at least 400 pounds. Load paths will be constructed to be
continuous to the foundation.
Section RI305.1.1 REVISE to read:
Section Rl305.1.1 Furnaces and Air Handlers. Furnaces and Air Handlers within.. . (remaining portion
unchanged).
ADD new section Ml307.6 to read:
Section M1307.6 Liquefied Petroleum Appliances. LPG appliances shall not be installed in an attic,
pit or other location that would cause a ponding or retention of gas.
Section M1403.2 Foundations and supports. DELETE the works "heat pump" and "ground" and
INSERT the words "mechanical system" and "finish grade".
Section MI411.3.2 Drain pipe materials and sizes REVISE section by ADDING the following at the
end of the paragraph:
Condensate disposal shall be allowed to terminate as follows:
1. Into an approved fixture tailpiece, funnel drain, waste air gap fitting, floor sink, slop sink
and laundry tray.
2. At or below grade outside the building in an area capable of absorbing the condensate flow
without surface drainage.
3. Over roof drains that connect to drainage pipes, provided they terminate at or above grade in an
area capable of absorbing the condensate flow without surface drainage.
Equipment Capacity
Up to 10 tons of refrigeration
11 to 20 tons
21 to 40 tons
41 to 100 tons
Over 100 tons
Minimum Condensate Pipe Diameter
% inch
1 inch
1 ~ inch
1 'l1 inch
2 inch
When two or more units are tied together, the minimum drain size shall be 1".
ADD the following after "uniform slope", "not less than 307.1"
Section 1503.3 Kitchen exhaust rates. DELETE the section wording and INSERT: Domestic kitchen
cooking appliances are required to be equipped with ducted range hoods or down draft exhaust systems.
The fans shall be sized in accordance with Section M1507.3
Section 1703.2 Two opening or ducts. INSERT after the second sentence the words: For LPG
appliances, any duct serving the lower opening shall be at the floor level and slope to the outdoors
without traps or pockets.
2006 International Residential Code
Page 3 of 28
Section G2415.9 Minimum burial depth. REVISE section by DELETING section text and subsection
and REPLACING with the following:
Underground piping systems shall be installed a minimum depth of 12 inches (304.8 mm) below grade
for metal piping and 18 inches (457 mm) for plastic piping with caution tape placed 6 inches (152.5
mm) above plastic pipes.
Section P2503.6 Water-supply system testing. REVISE section by DELETING the phrase fragment
"other than plastic," from the first sentence.
Section P2603.6.1 Sewer depth. INSERT [number] as "12" in both locations.
ADD new section P2803.6.2 to read:
Section P2803.6.2 Replacement water heaters. Replacement water heaters shall comply with the
following when it is not feasible to run the Temperature and Pressure relief valve line to the exterior of
the residence:
1. A drain pan shall be installed under the water heater.
2. The temperature relief valve shall be set to a maximum of 21 0 degrees and the pressure relief
valve to 150psi with a line draining into the pan.
3. A pressure relief valve set at no greater than 125psi shall be installed at the main water supply
connection outside the dwelling.
Section E3306.3: Minimum size of conductors. REVISE section by DELETING the words "and No
12 aluminum" from the first sentence and REPLACING these with "No 6 aluminum".
Section 3603.1: Branch circuits for heating. REVISE section by ADDING a sentence to the end ofthe
paragraph to read:
Evaporative cooler fan and pump motors shall be permitted to be connected to the same branch circuit
as central heating.
ADD new section E3603.7 to read:
Section E3603.7 Dishwasher and Garbage Disposer Branch Circuits - Dwelling Units. In
residential occupancies, dishwasher and garbage disposer may be on the same 20-ampere branch circuit.
ADD new section E3702.7 to read:
Section E3702.7 Earthen material wiring method. Type UF Cable shall be permitted to be used in
mortar joints of adobe construction in occupancies where the use of Nonmetallic Sheathed Cable is
permitted by this code.
2006 International Residential Code
Page 4 of28
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Section E3808.8.1 Flexible metal conduit. REVISE section by DELETING all text and REPLACING
it with the following:
Flexible metal conduit shall not be permitted as a grounding means. An equipment grounding conductor,
sized in accordance with Table E3808.12, shall be installed in all flexible metal conduits. Where an
equipment bonding jumper is required around flexible metal conduit, it shall be installed in accordance
with Section E3808.20.
Exception: Listed and labeled factory assembled (pre-wired) fixtures and equipment with flexible metal
conduit will not require the addition of the grounding conductor in the pre-wired raceway.
Section E3808.8.2 Liquid-tight flexible metal conduit. REVISE section by DELETING all text and
REPLACING it with the following:
Liquid-tight flexible metal conduit shall not be permitted as a grounding means. An equipment
grounding conductor, sized in accordance with Table E3808.12, shall be installed in all liquid-tight
flexible metal conduits. Where an equipment bonding jumper is required around liquid-tight flexible
metal conduit, it shall be installed in accordance with Section E3808.20.
Exception: Listed and labeled factory assembled (pre-wired) fixtures and equipment with liquid-tight
flexible metal conduit will not require the addition of the grounding conductor in the pre-wired raceway.
ADD new section E4202.3 and subsections to read:
Section E4202.3 Location of power supplies and transformers.
I. Accessibility: Class I, Class 2, and Class 3 power supplies and transformers shall be accessible.
2. Prohibited locations:
a) In any closet or space within 6 inches of the front of the shelf.
All Appendix Requirements are adopted with the following exceptions:
Appendix E Manufactured Housing used as Dwellings is hereby DELETED in its entirety and
REPLACED with the following:
See State Office of Manufactured Housing Regulations
Appendix F Radon Control Methods is hereby DELETED in its entirety.
Appendix G Swimming Pools, Spas and Hot Tubs. Is DELETED in its entirety.
Appendix I Private Sewage Disposal. REVISE this section by DELETING all text and REPLACING
it with the following:
See State Department of Environmental Quality Regulations
Appendix J Existing Buildings and Structures is hereby DELETED in its entirety.
Appendix L Existing Buildings and Structures is hereby DELETED in its entirety.
APPENDIX 0 is adopted as a reference only. DEQ regulations apply to all installations.
Appendix M is hereby DELETED in its entirety and REPLACED with the following:
Appendix AM: Straw-Bale Structures.
2006 International Residential Code
Page 6 of 28
Section AMIOI Purpose. The purpose of this appendix chapter is to establish minimum prescriptive
standards of safety for the construction of structures which use baled straw as a load bearing or non-load
bearing material.
Section AMI02 - Scope. The provisions ofthis chapter shall apply to all structures utilizing straw-
bales in the construction of wall systems. Load bearing structures shall be limited to Occupancy Groups
R, Division 3 and U.
Section AMI03 - Definitions. For the purpose of this chapter, certain terms are defined as follows:
STRAW is the dry stems of cereal grains left after the seed heads have been removed.
BALES are rectangular compressed blocks of straw, bound by strings or wire.
FLAKES are slabs of straw removed from an untied bale. Flakes are used to fill small gaps between the
ends of stacked bales.
LAID FLAT refers to stacking bales so that the sides with the largest cross-sectional area are horizontal
and the longest dimension of this area is parallel with the wall plane.
LAID ON-EDGE refers to stacking bales so that the sides with the largest cross-sectional area are
vertical and the longest dimension of this area is horizontal and parallel with the wall plane.
Section AMI04 - MATERIALS
Section AMI04.1 Specifications for Bales.
Section AMI04.1.1 Type of Straw. Bales of various types of straw, including, but not limited to,
wheat, rice, rye, barley, oats and similar plants, shall be acceptable if they meet the minimum
requirements for density, shape, moisture content, and ties.
Section AMI04.1.2 Shape. Bales shall be rectangular in shape.
Section AMI04.1.3 Dimensions. Bales used within a continuous wall shall be of consistent height and
width to ensure even distribution of loads within wall systems.
Section AMI04.1.4 Ties. Bales shall be bound with ties of either polypropylene string or baling wire.
Bales with broken or loose ties shall not be used unless the broken or loose ties are replaced with ties
which restore the original degree of compaction of the bale.
Section AMI04.1.S Moisture Content. Moisture content of bales, at time of installation, shall not
exceed 20% of the total weight ofthe bale. Moisture content of bales shall be determined by one ofthe
following:
Section AMI04.1.S.1 Field Method. A suitable moisture meter, designed for use with baled straw or
hay, and equipped with a probe of sufficient length to reach the center of the bale, shall be used to
determine the average moisture content of 5 bales randomly selected from the bales to be used.
2006 International Residential Code
Page 7 of 28
Section AMI04.1.S.2 Laboratory Method. A total of 5 samples, taken from the center of each of 5
bales randomly selected from the bales to be used, shall be tested for moisture content by a recognized
testing lab.
Section AMI04.1.6 Density. Bales in load-bearing structures shall have a minimum calculated dry
density of7.0 pounds per cubic foot. The calculated dry density shall be determined after reducing the
actual bale weight by the weight ofthe moisture content, as determined in Section 7204.1.5. The
calculated dry density shall be determined by dividing the calculated dry weight of the bale by the
volume of the bale.
Section AMI04.1.7 Custom Size Bales. Where custom-made partial bales are used, they shall be ofthe
same density, same string or wire tension, and, where possible, use the same number of ties as the
standard size bales.
Section AMIOS - Construction and General Requirements
Section AMIOS.I General. Bale walls, when covered with plaster, drywall or stucco shall be deemed
to have the equivalent fire resistive rating as wood frame. construction with the same wall-finishing
system.
Section AMIOS.2 Wall Thickness. Nominal minimum bale wall thickness shall be 14 inches.
Section AMIOS.3 Wall Height. Bale walls shall not exceed one story in height and the bale portion
shall not exceed a height to width ratio of 5.6 : 1 (for example, the maximum height for the bale portion
of a 23 inch thick wall would be 10 feet - 8 inches), unless the structure is designed by an engineer or
architect licensed by the State to practice as such, and approved by the Building Official.
Exception: In the non-load bearing exterior end walls of structures with gable or shed roofs, an
approved continuous assembly shall be required at the roof bearing assembly level.
Section AMIOS.4 Unsupported Wall Length. The ratio of unsupported wall length to thickness, for
bale walls, shall not exceed 13:1 (for a 23-inch thick wall, the maximum unsupported length allowed is
25 feet), unless the structure is designed by an engineer or architect licensed by the State to practice as
such, and approved by the Building Official.
Section AMIOS.S Allowable Loads. The allowable vertical load (live and dead load) on the top of bale
walls shall not exceed 360 pounds per square foot (pst) and the resultant load shall act at the center of
the wall. Bale structures shall be designed to withstand all vertical and horizontal loads as specified in
Chapter 16.
Section AMIOS.6 Foundations. Foundations shall be sized to accommodate the thickness ofthe bale
wall and the load created by the wall and rooflive and dead loads. Foundation (stem) walls which
support bale walls shall extend to an elevation of not less than 6 inches above adjacent ground at all
points. The minimum width of the footing shall be the width of the bale it supports, except that the
bales may overhang the exterior edge of the foundation by not more than 3 inches to accommodate rigid
perimeter insulation. Footings shall extend a minimum of 12 inches below natural, undisturbed soil, or
to frost line, whichever is lower.
Section AMI 05.7 Wall and Roof Bearing Assembly Anchorage
2006 International Residential Code
Page 8 of 28
Section AMIOS.7.1 General. Vertical reinforcing bars with a minimum diameter of 1/2", shall be
embedded in the foundation a minimum depth of 6 inches, and shall extend above foundation a
minimum of 12 inches. These vertical bars shall be located along the centerline ofthe bale wall, spaced
not more than 2 feet apart. A vertical bar shall also be located within 1 foot of any opening or comer,
except at locations occupied by anchor bolts.
Section AMIOS.7.2 Intersecting Walls. Walls of other materials intersecting bale walls shall be
attached to the bale wall by means of one or more of the following methods or an acceptable equivalent:
1. Wooden dowels at least 5/8" in diameter of sufficient length to provide 12 inches of penetration
into the bale, driven through holes bored in the abutting stud, and spaced to provide one dowel
connection per bale.
2. Pointed wooden stakes, at least 12 inches in length and 1-1/2" by 3-1/2" at the exposed end, fully
driven into each course of bales, as anchorage points.
3. Bolted or threaded rod connection of the abutting wall, through the bale wall, to a steel nut and
steel or plywood plate washer, a minimum of 6 inches square and a minimum thickness of 3/16"
for steel and 1/2" for plywood, in at least three locations.
Section AMIOS.7.3 Anchor Bolts. Load bearing bale walls shall be anchored to the foundation by 1/2"
diameter steel anchor bolts embedded at least 7 inches in the foundation at intervals of 6 feet or less. A
minimum of two anchor bolts per wall shall be provided with one bolt located within 36 inches of each
end of each wall. Sections of 1/2" diameter threaded rod shall be connected to the anchor bolts, and to
each other, by means ofthreaded coupling nuts and shall extend through the roof bearing assembly and
be fastened with a steel washer and nut. Bale walls and roof bearing assemblies may be anchored to the
foundation by means of other methods which are adequate to resist uplift forces resulting from the
design wind load. There shall be a minimum of two points of anchorage per wall, spaced not more than
6 feet apart, with one located within 36 inches of each end of each wall.
The dead load of the roof and ceiling systems will produce vertical compression of the bales.
Regardless ofthe anchoring system used to attach the roof bearing assembly to the foundation, prior to
installation of wall finish materials, bolts or straps shall be re-tightened to compensate for this
compreSSIOn.
Section AMIOS.7.4 Moisture Barrier. A moisture barrier shall be used between the top of the
foundation and the bottom of the bale wall to prevent moisture from migrating through the foundation
into the bottom course of bales. This barrier shall consist of one of the following:
1. cementitious waterproof coating;
2. type 30 asphalt felt over an asphalt emulsion;
3. sheet metal flashing, sealed at joints;
4. other approved building moisture barrier. All penetrations through the moisture barrier, as well as
all joints in the barrier, must be sealed with asphalt, caulking or an approved sealant.
Section AMIOS.7.S Stacking and Pinning. Bales in load-bearing walls shall be laid flat and stacked in
running bond where possible, with each bale overlapping the two bales beneath it. Bales in non load-
bearing walls may be laid either flat or on-edge and stacked in running bond where possible. For non-
load bearing walls, bales may be laid either flat or on-edge. Bales in load bearing walls shall be laid flat
and stacked in a running bond, where possible, with each bale overlapping the two bales beneath it.
2006 International Residential Code
Page 9 of 28
Overlaps shall be a minimum of 12 inches. Gaps between the ends of bales which are less than 6 inches
in width can be filled by an untied flake inserted snugly into the gap.
The first course of bales shall be laid by impaling the bales on the vertical bars or threaded rods, if any,
extending from the foundation. When the fourth course has been laid, #4 rebar pins, or an acceptable
equivalent, long enough to extend through all four courses, shall be driven down through the bales, two
in each bale, located so that they do not pass within six inches of, or through the space between the ends
of any two bales. The layout of these pins shall approximate the layout of the vertical bars extending
from the foundation. As each subsequent course is laid, two such pins, long enough to extend through
the course being laid and the three courses immediately below it, shall be driven down through each
bale. This pinning method shall be continued to the top of the wall. In walls seven or eight courses
high, pinning at the fifth course may be eliminated.
Only full-length bales shall be used at comers ofload bearing walls, unless exceptions are designed by
an engineer or architect licensed by the State to practice as such, and approved by the Building Official.
Vertical #4 rebar pins, or an acceptable alternative, shall be located within 1 foot of all comers or door
opemngs.
Staples, made of #3 or larger rebar formed into a "u" shape, at least 18 inches long with two 6 inch legs,
shall be used at all comers of every course, driven with one leg into the top of each abutting comer bale.
In lieu of staples, comer bales may be tied together, by a method approved by the building official.
Section AMIOS.7.S.1 Alternative Pinning Method. When the third course has been laid, vertical #4
rebar pins, or an acceptable equivalent, long enough to extend through all three courses, shall be driven
down through the bales, two in each bale, located so that they do not pass within 6 inches of, or through
the space between the ends of any two bales. The layout of these rebar pins shall approximate the layout
of the rebar pins extending from the foundation. As each subsequent course is laid, two such pins, long
enough to extend through that course and the two courses immediately below it, shall be driven down
through each bale. This pinning method shall be continued to the top of the wall.
Section AMIOS.7.6 Roof Bearing Assembly. Load bearing bale walls shall have a roof bearing
assembly at the top ofthe wall to bear the roofload and to provide a means of connecting the roof
structure to the foundation. The roof bearing assembly shall be continuous along the tops of structural
walls.
An acceptable roof bearing assembly option consists oftwo double 2" X 6", or larger, horizontal top
plates, one located at the inner edge of the wall and the other at the outer edge. Connecting the two
doubled top plates and located horizontally and perpendicular to the length of the wall shall be 2" X 6"
cross members spaced no more than 72 inches center to center, and as required to align with the
threaded rods extending from the anchor bolts in the foundation. The double 2" X 6" top plates shall be
face nailed with l6d nails staggered at 16 inches on center, with laps and intersections face nailed with
four l6d nails. The cross members shall be face nailed to the top plates with four l6d nails at each end.
Comer connections shall include overlaps nailed as above or an acceptable equivalent such as plywood
gussets or metal plates. Alternatives to this roof bearing assembly option must provide equal or greater
vertical rigidity and provide horizontal rigidity equivalent to a continuous double 2 by 4 top plate.
The connection of roof framing members to the roof bearing assembly shall comply with the appropriate
sections of the UBC.
2006 International Residential Code
Page 10 of28
Section AMI05.7.7 Openings and Lintels. All openings in load bearing bale walls shall be a
minimum of one full bale length from any outside comer, unless exceptions are designed by an engineer
or architect licensed by the State to practice as such, and approved by the Building Official.
Section AMI05.7.7.1 Openings. Openings in exterior bale walls shall not exceed 50 percent of the
total wall area, based on interior dimensions, where the wall is providing resistance to lateral loads,
unless the structure is designed by an engineer or architect licensed by the State to practice as such, and
approved by the Building Official.
Section AMI05.7.7.2 Lintels. Wall and/or roofload present above any opening shall be carried, or
transferred to the bales below by one of the following:
1. A structural frame,
2. A lintel (such as an angle-iron cradle, wooden beam, wooden box beam). Lintels shall be at least
twice as long as the opening is wide and extend at least 24" beyond either side of the opening.
Lintels shall be centered over openings, and shall not exceed the load limitations of Section 7205.5
by more than 25 percent.
Section AMI05.7.8 Moisture Protection. All weather-exposed bale walls shall be protected from
water damage. An approved building moisture barrier shall be used to protect at least the bottom course
of bales, but not more than the lower one-third of the vertical exterior wall surface, in order to allow
natural transpiration of moisture from the bales. The moisture barrier shall have its upper edge inserted
at least 6 inches into the horizontal joint between two courses of bales, and shall extend at least 3 inches
below the top of the foundation. Bale walls shall have special moisture protection provided at all
window sills. Unless protected by a roof, the tops of walls shall also be protected. This moisture
protection shall consist of a waterproof membrane, such as asphalt-impregnated felt paper, polyethylene
sheeting, or other acceptable moisture barrier, installed in such manner as to prevent water from entering
the wall system at window sills or at the tops of walls.
Section AMI05.7.9 Wall Finishes. Interior and exterior surfaces of bale walls shall be protected from
mechanical damage, flame, animals, and prolonged exposure to water. Bale walls adjacent to bath and
shower enclosures shall be protected by a moisture barrier.
Cement stucco shall be reinforced with galvanized woven wire stucco netting or an acceptable
equivalent. Such reinforcement shall be secured by attachment through the wall at a maximum spacing
of24 inches horizontally and 16 inches vertically, using a method approved by the Building Official.
Where bales abut other materials, the plaster/stucco shall be reinforced with galvanized expanded metal
lath, or an acceptable equivalent, extending a minimum of 6 inches onto the bales.
Earthen and lime-based plasters may be applied directly onto the exterior and interior surface of bale
walls without reinforcement, except where applied over materials other than straw. Weather-exposed
earthen plasters shall be stabilized using a method approved by the building official.
Lime based plasters may be applied directly onto the exterior surface of bale walls without
reinforcement, except where applied over materials other than straw.
2006 International Residential Code
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Section AMI05.7.10 Electrical. All wiring within or on bale walls shall meet all provisions of the
National Electrical Code adopted by this jurisdiction. Type UF cable may be used, or wiring may be
run in metallic or nonmetallic conduit systems.
Electrical boxes shall be securely attached to wooden stakes driven a minimum of 12 inches into the
bales, or an acceptable equivalent.
Section AMI05.7.11 Plumbing. Water or gas pipes within bale walls shall be encased in a continuous
pipe sleeve to prevent leakage within the wall. Where pipes are mounted on bale walls, they shall be
isolated from the bales by a moisture barrier.
Section AMI06 - Privacy/Landscape Walls
Section AMI06.1 General. This section covers freestanding or attached bale privacy or landscape
walls, not exceeding 6 feet in height, from final grade to top of wall. Bales may be stacked either flat or
on-edge. Alternate methods, other than those listed in this section, may be approved by the building
official.
Section AMI06.2 Foundations. The minimum foundation shall consist of an 8 inch thick reinforced
concrete stem wall, over an approved footing. Minimum width of the stem wall shall be equal to the
width ofthe bottom bale. Stem walls shall have continuous horizontal reinforcement consisting of two
#4 bars with 24 inches minimum lap at splices.
Section AMI06.2.1 Reinforcement. Vertical reinforcing bars, a minimum 3/8" in diameter, shall be
placed in the center of the stem wall, two per bale, and extend up a minimum of 24 inches, .and be
embedded a minimum of 4 inches into the concrete stem wall. Bales shall be pinned, using two 3/8"
diameter bars per bale, and use pins long enough to provide at least one vertical bar from stem wall to
top of wall, with a minimum of one full bale overlap where not continuous.
For the purpose of attaching stucco mesh to the wall, 12d or larger galvanized common double-headed
nails shall be embedded in the concrete a minimum of 1 inch below the top of the stem wall, with the
heads embedded a minimum of2 inches into the concrete, and the points extending a minimum of3/4"
from the face of the stem wall, and spaced a minimum of 6" on center on both sides of the wall.
Section AMI06.2.2 Moisture Barrier. A moisture barrier shall be used between the top ofthe stem
wall and the first course of bales. A moisture barrier shall also be used to protect the tops of bales at the
top of walls, and shall extend 6 inches down on either side of the wall.
Section AMI06.2.3 Stucco Mesh. Stucco mesh, 20 gauge or heavier, shall be attached by means of
clinching the embedded nails on one side ofthe wall, stretching a continuous piece of netting tightly
over the top of the wall, and fastening the netting in the same manner on the opposite side of the wall.
Section AMI06.2.4 Wall Finish. Walls shall be finished with cement stucco, or stabilized mud plaster,
with a minimum thickness of7/8".
2006 International Residential Code
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ADD new Appendix RA:
Section RA1 - Earthen Wall Structures
Section RA1.1 General. Earthen wall structures in Seismic Design Category A, B or C with basic wind
speed of 90 mph or less with wind exposure category of A, B, or C may be designed and constructed in
accordance with the provisions ofthis Section R614.
This Section shall supersede the limitations of Section R301.2.2 and structures complying with the
provisions of Section RA 1.1.2 shall have complied with the seismic requirements of this code.
Exception: Structures with any site conditions may be designed with accepted engineering practice for
earthen wall structures and the provisions of the IBC Section 2114 as amended.
Section RA1.1.1 Earthen materials. This section shall establish minimum standards for safety for
construction of earthen materials structures, collectively known as adobe, rammed earth, and hydraulic
pressed unit construction.
Section RA1.1.2 Professional registration not required. When the empirical design provisions of this
section are used to design wall systems, project drawings, typical details and specifications are not
required to bear the seal of an architect or engineer, unless otherwise required by the state law of the
jurisdiction having authority or as required by Section R614.1.3.
Section RA1.1.3 Professional registration required. When the earthen structure is over 12 feet (3638
mm) in height, as measured by Table RAl.2.1, or is over 1 story, or has open walls over 50% of any
wall line the plans and specifications shall be prepared by a registered professional architect or engineer
licensed in the state for which the project is to be constructed. All such projects shall be designed in
accordance with accepted engineering practice for earthen wall structures and in accordance the
International Building Code Section 2114 as amended.
Section RA1.2 Dimensions of earth walls. The actual measured thickness of earthen walls shall
conform to the requirements of Section R614.
Section RA1.2.1 Thickness and Height. The minimum thickness and maximum height of earthen walls
and parapets shall be in accordance with Tables RA 1.2.1 (1 to 6) based upon the Sds value for the site of
the project. Wall thickness shall be measured from face to face of walls with concave joints. Walls with
rake joints shall be measured surface of joint to surface of joint. The thickness of wall sections shall not
be combined without full cross bonding of the masonry units throughout the wall.
Exception: Walls supported only at ground level and only supported at the base ofthe wall shall be
limited to a height of ~ that allowed by Tables RAl.2.l (1 to 6).
Table RA1.2.1 (1)
Seismic Sites with Sds
0.00 TO 0.25
Assuming zero tension out-of-plane
Actual Wall thickness (in)
2006 International Residential Code
Page 13 of28
EXTERIOR
INTERIOR
PARAPET
EXTERIOR WALL
NO PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
EXTERIOR WALL
with FULL PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
INTERIOR WALL
with infIll between beams
TYPE "A"
TYPE "B"
TYPE "C"
10 11 12 13 14 15 16 18 20 22 24
Maximum Wall Heights (inches)
NP 83 99 116 135 144 144 144 144 144 144
127 140 144 144 144 144 144 144 144 144 144
NP 22 24 26 28 30 32 36 40 44 48
Bond Beam Size and Steel Requirements
All Bond Beams 8" Minimum Height
2 -#4 2 -#4 2 -#5 2 -#5 2 -#5 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4 2 - #4
2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4
NP NP NP NP NP 4 -#5 4 -#4 2 -#4 2 -#4 2 -#4 2 -#4
2 -#4 2 -#4 2 -#5 2 -#5 2 -#5 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4 2 -#4
2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4
NP NP NP NP NP 4 -#5 4 -#4 2 -#4 2 -#4 2 -#4 2-#4
2 -#4 2 -#4 2 -#5 2 -#5 2 -#5 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4 2 -#4
2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4
NP NP NP NP NP 4 -#5 4 -#4 2 -#4 2 -#4 2 -#4 2 -#4
NP
= This wall not permitted.
2006 International Residential Code
Page 14 of28
Seismic Sites with Sds
EXTERIOR
INTERIOR
PARAPET
EXTERIOR WALL
NO PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
EXTERIOR WALL
with FULL PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
INTERIOR WALL
with infIll between beams
TYPE "A"
TYPE "B"
TYPE "C"
BOND BEAM LOAD
BOND BEAM LOAD
BOND BEAM LOAD
Table RA1.2.1 (2)
0.25
TO
0.30
Assuming zero tension out-of-plane
Actual Wall thickness (in)
10 11 12 13 14 15 16 18 20 22 24
Maximum Wall Heights (inches)
NP 83 99 116 135 144 144 144 144 144 144
106 116 127 137 144 144 144 144 144 144 144
NP 22 24 26 28 30 32 36 40 44 48
Bond Beam Size and Steel Requirements
All Bond Beams 8" Minimum Height
2 -#4 2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4
2 -#5 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4
NP NP NP NP NP 4 -#5 4 -#5 2 -#5 2 -#4 2 -#4 2 -#4
2 -#4 2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4
2 -#5 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4
NP NP NP NP NP 4 -#5 4 -#5 2 -#5 2 -#4 2 -#4 2 -#4
2 -#4 2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4 2 -#4
2 -#5 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4 2 -#4
NP NP NP NP NP 4 -#5 4 -#5 2 -#5 2 -#4 2 -#4 2 -#4
NP
= This wall not permitted.
46
81
84
100
160
137
125
194
150
125
204
151
80
194
155
o
203
164
42
183
158
o
171
161
108
198
152
61
103
100
79
130
118
2006 International Residential Code
Page 15 of28
Seismic Sites with Sds
EXTERIOR
INTERIOR
PARAPET
EXTERIOR WALL
NO PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
EXTERIOR WALL
with FULL PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
INTERIOR WALL
with inftll between beams
TYPE "A"
TYPE "B"
TYPE "C"
BOND BEAM LOAD
BOND BEAM LOAD
BOND BEAM LOAD
Table RA1.2.1 (3)
0.30
TO
0.35
Assuming zero tension out-of-plane
Actual Wall thickness (in)
10 11 12 13 14 15 16 18 20 22 24
Maximum Wall Heights (inches)
NP 83 99 116 127 136 144 144 144 144 144
91 100 109 118 127 136 144 144 144 144 144
NP 22 24 26 28 30 32 36 40 44 48
Bond Beam Size and Steel Requirements
All Bond Beams 8" Minimum Height
2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4
4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4
NP NP NP NP NP 4 -#6 4 -#6 4 -#5 4 -#4 2 -#5 2 -#4
2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4
4-#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4
NP NP NP NP NP 4 -#6 4 -#6 4 -#5 4 -#4 2 -#5 2 -#4
2 -#5 2 -#5 2 -#5 4 -#4 4 -#4 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4
4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#4 2 -#4
NP NP NP NP NP 4 -#6 4 -#6 4 -#5 4 -#4 2 -#5 2 -#4
NP
= This wall not permitted.
53
94
86
71
121
103
117
186
140
137
218
160
156
289
206
40
277
216
127
291
210
88
287
213
157
250
182
176
281
203
92
151
120
2006 International Residential Code
Page 16 of28
Seismic Sites with Sds
EXTERIOR
INTERIOR
PARAPET
EXTERIOR WALL
NO PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
EXTERIOR WALL
with FULL PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
INTERIOR WALL
with infIll between beams
TYPE "A"
TYPE "B"
TYPE "C"
BOND BEAM LOAD
BOND BEAM LOAD
BOND BEAM LOAD
Table RA1.2.1 (4)
0.35
TO
0.40
Assuming zero tension out-of-plane
Actual Wall thickness (in)
10 11 12 13 14 15 16 18 20 22 24
Maximum Wall Heights (inches)
NP 83 95 103 111 119 127 143 144 144 144
79 87 95 103 111 119 127 143 144 144 144
NP 22 24 26 28 30 32 36 40 44 48
Bond Beam Size and Steel Requirements
All Bond Beams 8" Minimum Height
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#5
4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#5 4 -#5 2 -#5
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#5
4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#5 4 -#5 2 -#5
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5 2 -#5
4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4 2 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#5 4 -#5 2 -#5
NP
= This wall not permitted.
61
108
89
101
168
123
118
198
143
137
229
163
227
379
260
142
412
276
211
399
268
181
409
272
157
263
186
179
299
209
81
138
105
2006 International Residential Code
Page 17 of28
Seismic Sites with Sds
EXTERIOR
INTERIOR
PARAPET
EXTERIOR WALL
NO PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
EXTERIOR WALL
with FULL PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
INTERIOR WALL
with infill between beams
TYPE "A"
TYPE "B"
TYPE "C"
BOND BEAM LOAD
BOND BEAM LOAD
BOND BEAM LOAD
Table RA1.2.1 (5)
0.40
TO
0.45
Assuming zero tension out-of-plane
Actual Wall thickness (in)
10 11 12 13 14 15 16 18 20 22 24
Maximum Wall Heights (inches)
NP 78 85 92 99 106 113 127 141 144 144
70 78 85 92 99 106 113 127 141 144 144
NP 22 24 26 28 30 32 36 40 44 48
Bond Beam Size and Steel Requirements
AIl Bond Beams 8" Minimum Height
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4
4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#6 4 -#5 4 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6 4 -#5
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4
4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#6 4 -#5 4 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6 4 -#5
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#4
4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#6 4 -#5 4 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6 4 -#5
NP
= This wall not permitted.
68
121
91
101
177
126
118
208
146
137
241
167
179
314
213
243
548
343
227
398
265
280
491
322
274
530
339
157
276
189
85
149
108
2006 International Residential Code
Page 18 of28
Seismic Sites with Sds
EXTERIOR
INTERIOR
PARAPET
EXTERIOR WALL
NO PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
EXTERIOR WALL
with FULL PARAPET
TYPE "A"
TYPE "B"
TYPE "C"
INTERIOR WALL
with inml between beams
TYPE "A"
TYPE "B"
TYPE "C"
BOND BEAM LOAD
BOND BEAM LOAD
BOND BEAM LOAD
Table RA1.2.1 (6)
0.45
TO
0.50
Assuming zero tension out-of-plane
Actual Wall thickness (in)
10 11 12 13 14 15 16 18 20 22 24
Maximum Wall Heights (inches)
NP 70 76 82 89 95 101 114 127 140 144
63 70 76 82 89 95 101 114 127 140 144
NP 22 24 26 28 30 32 36 40 44 48
Bond Beam Size and Steel Requirements
All Bond Beams 8" Minimum Height
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5
4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#6 4 -#6 4 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5
4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#6 4 -#6 4 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6
2 -#5 2 -#5 4 -#4 4 -#4 4 -#4 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5
4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#5 4 -#6 4 -#6 4 -#5
NP NP NP NP NP 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6 4 -#6
NP
= This wall not permitted.
70
129
93
85
156
110
118
218
149
137
252
170
179
330
217
280
515
327
345
683
417
338
623
390
157
290
193
227
417
269
101
185
129
2006 International Residential Code
Page 19 of28
Section RA1.2.2 Maximum length. The maximum length of any earthen wall laterally braced by Bond
Beams per Section R614.5.2 shall be 20 feet (6,096 mm) between perpendicular bracing walls. Any
wall in excess of20 feet (6,096 mm) shall be designed in accordance with the amended IBC as noted in
Section RA 1.1 above, (See Section R614. 7 for required lengths of solid shear panels in walls.), or
braced by a roof diaphragm roof system as required by Section RA1.5.2.3.
Section RA1.3 Support conditions. Earthen walls shall be supported on a solid concrete, solid masonry
foundation system the width of which shall be not be less than 1/2 inch narrower than the earthen wall
which it supports. Earthen structures shall not be less than 6 inches above adjacent grade.
Section RA1.3.t Moisture barrier. A moisture barrier equal to 30 lb. asphalt impregnated building
paper, or equivalent moisture resistant barrier, shall be installed between the supporting foundation and
the earthen wall material.
Section RAtA Allowable stresses. Allowable compressive, tensile and shear stresses in earthen walls
shall not exceed the values prescribed in Table RA1A. In determining the stresses in masonry, the
effects of all loads and conditions of loading and the influence of all forces affecting the design and
strength of the several parts shall be taken into account. Bolts in shear shall be limited to those values in
IBC Table 2114.6.8.
Section RA1.4.t Combined units. In walls composed of different kinds or grades of units, materials or
mortars, the maximum stress shall not exceed the allowable stress for the weakest of the combination of
units, materials and mortars of which the wall is composed. The net thickness of any facing unit of
earthen materials used to resist stress shall not be less than 3 inches (76.2 mm).
When dissimilar materials, (e.g. concrete masonry or steel) are used to support earth wall construction,
such elements shall be structurally isolated from other earth wall elements. The design shall recognize,
with specific detailing, the effects shrinkage of the earth wall construction may have on the structural
integrity of the structure.
TABLE R61 4.4
ALLONABLE SlRESSES Fffi EMPI RICAL DESIGJ a= EARTHEN WALL SlRUCTURES
ALLOJI/ABLE STRESSES
STRENGTH a= UNIT, ffia)S AREA ffia)S CRa3S-SECl1O'JAL AREA NOTE 1
Compression 300 psi Nonnal Loading 30 psi
Concentrated Loading 30psi
Modulus of rupture 55 psi Allowable tension without Opsi
tensile reinforcing
Shear n.a. With special inspection 8 psi
Without special inspection 4psi
Modulus of Elasticity 60,000 psi Allowable deflection Less than l/2%
For SI: I pound per square inch = 6.895 kPa.
Notes:
1. Gross cross-sectional area shall be calculated on the actual rather than
the nominal dimensions.
2006 International Residential Code
Page 20 of 28
Section RA1.5 Lateral support. Earthen walls constructed of earthen units shall be bonded and tied to
intersecting earthen walls and laterally supported in the vertical direction in accordance with one ofthe
methods in Section RA1.5.1 or Section RA1.5.2.
Section RA1.5.1 Bond Beams. A continuous concrete bond beam system embedded in the earthen
walls, designed to provide lateral support for the walls without the aid of additional bracing elements
such as roof diaphragm. Bond beams shall be not less than the width of the wall minus 6 inches (152.4
mm) and a height of not less than 8 inches. Bond beams shall be reinforced as required by Tables
RA1.5.2.1 (1 to 6). Bars shall be placed not more than 1 W' from the inside face ofthe form or veneer
block as indicated in Figure RA1.5.2.1.
Figure RA1.5.2.1
TYPE "A"
TYPE "B"
TYPE "e"
FUlL WIDlH
SEE TABLE R614.2.1 (I THRU 6)
FOR NUMBJ1R AND SIZE OF
REINFORCING
WALL WID1H
MINUS 3"
SUM OF 6"
MAXIMUM
fH/
iornM
..,
~Lnh._:
io!i
!>fo'f
'. SHEAR
.... CONNECTION AS
REQUIRED BY
R614.2.1 (I THRU 6)
Section RA1.5.2.2.1 Bond beam anchorage. Bond beams shall be anchored to earthen walls at
intervals of not over 48 inches (1219 mm) by a connection with shear strength of not less than 200 lbs.
per lineal foot plus an additional 25 lbs. per lineal foot for every inch of thickness in excess of 16" thick.
Section RA1.5.3 Roof diaphragm. A roof diaphragm complying with other provisions of this code
adequate to provide not less than 200 lbs. per lineal foot of lateral support may be used to brace earthen
walls. Earthen walls shall be anchored to roof diaphragms with connections to resist loads of not less
than 200 lbs. per lineal foot plus an additional 25 lbs. per lineal foot for every inch of thickness in excess
of 16" thick. This anchorage shall be tie beams as specified in Section RAI.5.3.2 or other anchorage
methods of equal strength.
Section RA1.5.3.1 Tie beams. A tie beam is a concrete or masonry, beam built into the earthen wall for
the purpose of anchoring the roof diaphragm and transferring the lateral perpendicular and parallel
forces. Tie beams shall be provided for all earthen walls laterally braced by a roof diaphragm. Tie beams
shall be anchored to the roof diaphragm system as required by other provisions in this code at intervals
not exceeding 4 feet (1219 mm).
Tie beams shall be not less than 'l1 the width ofthe earthen wall, a minimum of 8 inches (203.2 mm)
high and reinforced with 2 - #4 reinforcing bars.
2006 International Residential Code
Page 21 of28
Section RAt.5.3.2 Tie beam anchorage. Tie beams shall be anchored to earthen walls at intervals of
not over 48 inches (1219 mm) by a connection with shear strength of not less than 200 Ibs. per lineal
foot plus an additional 25 Ibs. per lineal foot for every inch of thickness in excess of 16" thick.
Section RAt.6 Lintels. Earthen walls over openings shall be supported by steel lintels, reinforced
concrete or masonry lintels or earthen arches designed to support load imposed. Lintels shall not be
supported by rigid structural columns, frames or posts with rigidities greater than the earthen wall unless
the design allows for the potential for differential settlements.
Small openings less than 12" may be constructed without structural lintels.
Section RAt. 7 Shear walls. earthen walls subject to in-plane loads shall be designed with at least one
earthen wall shear panel, at least 4 feet long, free of openings, with a length as computed by formula
RA1.7-1.
L = (Sqrt PL x Sds x 4) Equation RA1.7-1
Where:
L = Length of shear panel
PL = Sum of overall length of walls perpendicular to the panel.
Sds = Sds factor as determined by Section 1615 of the International Building Code.
Section RA1.8 Jambs at openings. Portions of walls between openings or comer shall be constructed
with lengths of not less than 1 Y2 times the thickness of the wall in which they occur.
Section RA1.9 Piers. The thickness of isolated earthen piers shall be not less than 1 Y2 times those wall
thickness values indicated in Table RAl.l.2.1Al (1 to 6). When structural posts or columns are provided
within the pier ties or attachments shall be provided to the earthen wall system to laterally secure it a
required by Section R614.11.
Section RA1.9.1 Pier Cap. A solid concrete cap shall be provided at the top ofload bearing piers under
all concentrated loads. The cap shall cover not less than 50% of the top ofthe pier.
Section RA1.10 Chases. Chases and recesses in earthen walls shall not be deeper than one-halfthe
thickness of the wall thickness. The maximum length of a horizontal chase or horizontal projection shall
not exceed 4 feet (1219 mm), and shall have at least 8 inches (203.2 mm) of masonry in back of the
chases and recesses and between adjacent chases or recesses and the jambs of openings.
Chases and recesses in earthen walls shall be designed and constructed so as not to reduce the required
strength or required fire resistance of the wall and in no case shall a chase or recess be permitted within
the required area of a pier. Masonry directly above chases or recesses wider than 12 inches (304.8 mm)
shall be supported on noncombustible lintels.
Section RAI.ll Stack bond. When the earthen wall is constructed of units, (e.g. adobe brick), units
shall not be laid in stack bond. Units shall, in all locations throughout the wall system, overlap the
courses below by not less than one-third the dimension of the units.
Section RA1.12 Metal reinforcement. In addition to bonding earthen walls shall be anchored at their
intersections, all walls shall be reinforced with joint reinforcement at vertical intervals of not more than
2006 International Residential Code
Page 22 of 28
16 inches (406.4 mm). Horizontal reinforcement shall be continuous at the intersections. Reinforcement
shall be not more than 4 inches narrower than the wall thickness.
Section RA1.13 Veneer. All veneers using earthen materials shall be installed in accordance with this
section. Such veneers shall be installed with a noncombustible foundation, over concrete masonry, a
backing of wood or cold-formed steel and shall be limited to the first story above grade and be not less
than 4 inches (101.6 mm) or greater than 8 inches (203.2 mm) in thickness. Veneers shall not exceed a
height of over 20 times their thickness without structural vertical support.
Section RA1.13.1 Anchorage. Earth units shall be anchored to the supporting wall with a corrosion-
resistant veneer tie system mechanically attached to continuous horizontal joint reinforcement
continuously installed in the veneer bed joint not less than 16 inches (406.4 mm) on center vertically.
When earth mortar systems are used the tie system shall prevent the accumulation of mortar at the base
of the veneer. Conventional brick ties shall not be used to anchor earth units.
Section RA1.13.2 Air space. The veneer shall be separated from the sheathing by an air space of a
minimum of 1 inch (25.4 mm) but not more than 2 inches (50.8 mm). A moisture-resistant barrier or 15
lb. asphalt-saturated felt as required by Section R703.2 shall be provided except when veneer is applied
over concrete masonry or concrete backing.
Section RA1.13.3 Flashing. Approved corrosion-resistive flashing shall be provided in the exterior wall
envelop in such a manner as to prevent entry of water into the wall cavity or penetration of water into
the building structural framing components. The flashing shall extend to the surface of the exterior wall
finish and shall be installed to prevent water from reentering the exterior wall envelope. Flashing shall
be located beneath the first course of veneer, and at other points of support, including structural floors,
shelf angles and lintels. Approved corrosion-resisting flashing shall be installed at all of the following
locations:
1. At top of all exterior window and door openings in such a manner as to be leak proof.
2. At the intersection of chimneys or other masonry construction with frame or stucco walls,
with projecting lips on both sides under stucco copings.
3. Under and at the ends of masonry, wood or metal copings and sills.
4. Where exterior porches, decks or stairs attach to a wall or floor assembly of wood-frame
construction.
5. At wall and roof intersections.
Section RA1.13.4 Weep holes. Weep holes shall be provided in the outside withe of masonry walls at a
maximum spacing of 33 inches (838.2 mm) on center. Weep holes shall not be less than 3/16 inches
(4.76 mm) in diameter. Weep holes shall be located immediately above the flashing.
Section RA1.13.5 Plaster veneer. Both interior and exterior faces of earthen walls which are to be
plastered with cement plaster shall be lathed and plastered in accordance the Section R 703.6.1.
Section RA1.14 Buttresses. Earthen walls used as buttresses shall not extend beyond an average length
perpendicular to the wall to be braced a distance of 6 feet (1829 mm) without consideration to out-of-
plane bending of the buttress.
2006 International Residential Code
Page 23 of 28
Section RA1.IS Gable end walls. Gable end walls shall be constructed using veneer construction as
required by Section RA1.13 or shall be provided with lateral bracing to prevent overturn designed in
accordance with the IBC as modified.
Section RA1.16 Ledgers. Ledgers shall not be used to support vertical live and dead loads in excess of75 lbs.
per lineal foot.
Section RA1.17 Construction documents. In addition to the provisions of Section R106 all plans for earthen
structures shall include the following:
1. The Sds number of the site.
2. The wind speed and site exposure coefficient of the site.
3. The material standard to which the earthen materials will comply.
4. The foundation supporting system and moisture barrier material.
5. The length, height and thickness in the actual dimensions of all earthen walls and parapets.
6. The bond beam or tie beam construction and attachment method to the earthen wall.
7. Lintel design, construction and end bearing area.
8. Veneer dimensions, attachment methods, moisture barrier and supporting structure.
9. Flashing materials and installation.
10. Metal reinforcement type and location.
Section RA1.18 Corbeled wall elements. The maximum corbeled projection beyond the face ofthe
wall shall not be more than one fourth of the wall thickness.
Section RA1.19 Material standards. The materials used in earthen wall structures shall comply with
the following material standards. For each of the tests prescribed in these standards, five full size sample
units shall be selected at random from each lot of units of fraction thereof produced. Mass wall systems
such as rammed earth shall provide a five tests for each required standard test series.
Section RA1.19.1 Manufacturers of earthen materials. Established manufacturers of earthen
materials shall certify compliance with these standards. Copies of their periodic testing shall be
supplied to the building official when requested. Literature, advertising and other information supplied
by the manufacturer to designers and users of earthen materials shall include the actual dimensions of
units, not nominal dimensions.
Section RA1.19.2 Onsite earthen materials. Earthen units, mortar, rammed earth wall materials
mined, mixed, formulated, and or molded on site shall be tested for compliance with these standards.
For individual structures, a set oftests shall be provided for the first 2500 square feet of wall and an
additional test for each additional 2500 square feet or portion thereof in the structure. At least one set of
tests shall be made for each structure and for each 2500 square feet of patio wall. The fabricator of the
materials used in the project shall certify in writing to the building official compliance with these
standards. The certification shall include the number of units site molded, size of the units, volume of
material used as mortar, dates of fabrication, and results of testing of the material. Ifmaterials from
established manufacturers and onsite materials are used in the project, copies of records including
sources, quantities, and location of use within the structure shall be provided to the building official
upon request.
Section RA1.19.3 Categories of earthen materials. Type I, II, III, and IV earthen materials are
approved for use in construction of projects designed in accordance with Section 2114.
2006 International Residential Code
Page 24 of 28
Exception: Type I adobe shall only be used for repairs and small additions in which new walls do not
exceed 10% of the surface area of existing walls of Type I construction and for structures constructed of
a similar material system and for projects requiring this class of materials to meet historic guidelines.
Section RA1.19.3.1 Required plaster veneer. Adobe of Type I and II shall be protected on the exterior
with exterior plaster meeting the requirements of IBC Section 2512 applied over wire lath. Type I and II
adobe shall not be used within 4 inches (101.6 mm) ofthe floor or at the top of parapet walls or near
potential sources of water which may affect the stability of the earth wall system. Other Types of adobe
may be left unplastered and may be used without separation from the floor.
Section RA1.19.3.2 Adobe units and mortar. Moisture resistant stabilized adobe units and mortar
shall meet the following testing standards as indicated in Table. Type S Portland cement mortar may be
used for Type II, III, and IV adobe in lieu of earth mortar.
Table RA1.19.3.2
Material
I:I~
o .
....c f'!
....~~
a.. QJ 0\
Q 100 ~
Q.,.
a:;!;
O\C
U~
X
x
x
I:IM
o .
.... ~
~('f')
~ .
QJO\
loo~
Q.,.
.....a:;!;
QJ 0 \C
~U~
~
~ ~
~ QJ ~
:I 100 0\
=S~
"'0 Q., ~
o :I ~
~~~
x
x
x
x
~
.1:1 N
.s ~
..... 0:..
e-~ ~
~~:;!;
~ .\C
<~~
II)
1:1 ~
o ('f')
; .
Q., 0\
loo~~
~~:;!;
~ .\C
<-o~
Type
I
II
III
IV
x
x
x
X Indicates that material must pass the test standards prescribed in this Section.
I..C
QJ ~
S=;:.
..... QJ
~........
~8~
X
X
X
X
Section RA1.19.3.2.1 Dry compression strength. Determine the compressive strength ofthe required
number of samples as required by Section R614.19. in accordance with the following procedures.
Section RA1.19.3.2.1.1 Dry the Specimen. Dry the specimen at a temperature of850 F.+-150 F. (290 C.
+- 90) in an atmosphere having relative humidity of not more than 50 percent. Weigh the specimen at
one-day intervals until constant weight is attained.
Section RA1.19.3.2.1.2 Cap the Specimen. The specimen may be suitably capped with calcined
gypsum mortar or the bearing surfaces may be rubbed smooth and true. Then calcined gypsum is used
for capping, conduct the test after the capping has set and the specimen has been dried to constant
weight in accordance with Item 1 of this section.
Section RA1.19.3.2.1.3 Test the Specimen. Test the specimens in the position in which the earthen unit
is designed to be used. And bed on and cap with a felt pad not less than 1/8 inch (3.2mm) or more than
y,j inch (6.4 mm) in thickness.
Section RA1.19.3.2.1.4 Testing Equipment. The loading head shall completely cover the bearing area
of the specimen and the applied load shall be transmitted through a spherical bearing block of proper
design. The speed of the moving head of the testing machine shall not be more than 0.05 inch (1.27
mm) per minute.
2006 International Residential Code
Page 25 of 28
Section RA1.19.3.1.5 Reporting Results. Calculate the average compressive strength ofthe specimens
tested and report this as the compressive strength ofthe block. Units shall have an average dry
compressive strength of 300 psi (2068 kPa) and no individual unit may have a strength of less than 250
psi. (1724 kPa).
Section RA1.19.3.2.2 Wet compression strength. Determine the compressive strength ofthe required
number of specimen as required by Section RA 1.19.3.2.1 in accordance with the following procedures.
Section RA1.19.3.2.2.1 Cap the Specimen. The specimens may be suitably capped with a capping
material compatible with water saturation or the bearing surfaces may be rubbed smooth and true.
Section RA1.19.3.2.2.2 Wetting the Specimen. Submerge the specimen under water for not less than 8
hours or longer as required until fully saturated.
Section RA1.19.3.2.2.3 Test the Specimen. Immediately test the specimen in the position in which the
earthen unit is designed to be used. And bed on and cap with a felt pad not less than 1/8 inch (3.2 mm)
or more than ~ inch (6.4 mm) in thickness.
Section RA1.19.3.2.2.4 Testing Equipment. The loading head shall completely cover the bearing area
of the specimen and the applied load shall be transmitted through a spherical bearing block of proper
design. The speed of the moving head of the testing machine shall not be more than 0.05 inch (1.27
mm) per minute.
Section RA1.19.3.2.2.5. Reporting Results. Calculate the average compressive strength of the
specimens tested and report this as the compressive strength of the block. Adobe units shall have an
average wet compressive strength of 300 psi (2068 kPa). Five samples shall be tested and no individual
unit may have a wet compressive strength ofless than 250 psi. (1724 kPa).
Section RA1.19.3.2.3 Modulus of rupture. Adobe units shall have an average modulus of rupture of 50
psi (345 kPa) when tested in accordance with the following procedure. Five samples shall be tested and
no individual unit shall have a modulus of rupture ofless than 35 psi (241 kPa).
Section RA1.19.3.2.3.1 Support conditions. A cured unit shall be simply supported by 2-inch-diarneter
(50.8 rnrn) cylindrical supports located 2 inches (50.8 rnrn) in from each end and extending the full
width of the unit.
Section RA1.19.3.2.3.2 Loading conditions. A 2-inch-diarneter (50.8 mm) cylinder shall be placed at
mid-span parallel to the supports.
Section RA1.19.3.2.3.3 Testing procedure. A vertical load shall be applied to the cylinder at the rate of
500 pounds per minute (37 N/s) until failure occurs.
Section RA1.19.3.2.3.4 Modulus of rupture determination. The modulus of rupture shall be
determined by the formula:
Fr = 3WLs12bt2
(Equation 2116.3.2.3.4-1)
Where, for the purposes of this section only:
2006 International Residential Code
Page 26 of 28
b = Width ofthe test specimen measured parallel to the loading cylinder, inches (mm).
fr = Modulus of rupture, psi (Mpa).
Ls = Distance between supports, inches (mm).
T = Thickness ofthe text specimen measured parallel to the direction ofload, inches (mm).
W = The applied load at failure, pounds (N).
Section RA1.19.3.2.4 Absorption less than 2.5%. A 4-inch (101.6 mm) cube, cut from an adobe unit
fried to a constant weight in a ventilated oven at 212 degrees F to 239 degrees F , shall not absorb more
than 2 ~ percent moisture by weight when placed upon a constantly water-saturated, porous surface for
7 days. A minimum of five specimens shall be tested and each specimen shall be cut from a separate
unit.
Section RA1.19.3.2.5 Absorption less than 5.0%. A 4-inch (101.6 mm) cube, cut from an adobe unit
fried to a constant weight in a ventilated oven at 212 degrees F to 239 degrees F , shall not absorb more
than 2 ~ percent moisture by weight when placed upon a constantly water-saturated, porous surface for
7 days. A minimum of five specimens shall be tested and each specimen shall be cut from a separate
unit.
Section RA1.19.3.2.6 Additional Requirements. All earthen units shall meet the following
requirements.
Section RA1.19.3.2.6.1 Moisture content requirements. Earthen units shall have a moisture content
not exceeding 4 percent by weight at the time of use.
Section RA1.19.3.2.6.2 Shrinkage cracks. All earthen units shall not contain more than three shrinkage
cracks and any single shrinkage crack shall not exceed 3 inches (76.2 mm) in length or 1/8 inch (3.2
mm) in width.
Section RA1.19.3.2.6.3 Soil requirements. Soil used for moisture resisting adobe units and mortar
shall be chemically compatible with the stabilizing material. The soil shall contain sufficient clay to bind
the particles together without the aid of stabilizers. The soil shall contain not more than 0.2 percent of
water-soluble salts.
Section RA1.19.3.3 Cement Stabilized Rammed Earth. Cement stabilized Rammed Earth shall meet
the following standards. The installer of the wall system shall comply with the requirements of Section
2114.14.2 for frequency of testing.
Section RAl.19.3.3.1 Testing before Construction. The installer of cement stabilized Rammed Earth
shall provide the following testing before issuance of a building permit.
Section RAl.19.3.3.2 Materials from a Licensed Sand and Gravel Producer. A copy of Proctor
ASTM D 698 shall be provided for each soil type and source or combination of sources. Periodic testing
as provided by the supplier may be supplied to meet this requirement. The soil contain not more than 0.2
percent of water-soluble salts.
Section RA1.19.3.3.3 Material Mined and Mixed on Site. A copy of ASTM D 698, ASTM C 117,
ASTM C 136, and ASTM D 4318 shall be provide for each soil type and source or combination of
2006 International Residential Code
Page 27 of 28
sources. Such tests shall be repeated as required to assure that all materials to be used have been tested
and are represented by the tests. The soil shall contain not more than 0.2 percent of water-soluble salts.
Section RA1.19.3.3.4 Testing required during Construction. The installer of cement stabilized Rammed
Earth shall provide the following tests made during the construction process. A certified testing
laboratory shall provide field density tests for comparison to the pre-construction Proctor ASTM D 698,
percent moisture ASTM D 2216, dry density ASTM D 698, and percent moisture ASTM D 1556.
Cement Stabilized Rammed Earth walls shall meet or exceed 95% maximum dry density (ASTM D
698). Samples taken from the wall shall exceed 300 psi compression (ASTM D 1633) 14 days after
placement.
2006 International Residential Code
Page 28 of 28
'I - ..:. U - ".' 6 ,~ J ..:; :
"1'
Town of Marana
Amendments to the:
2006 International Mechanical Code
Section 101.1 Title. Add within brackets: "Town of Marana"
Section 202 General definitions. REVISE section by ADDING the following definitions:
BURNER. An arrangement for mixing air with fuel to sustain rapid oxidation of the fuel.
REFRIGERATION SYSTEM, ABSORPTION.
Indirect System REVISE definition by DELETING the word "coil."
Section 303.7 Pit locations. REVISE section by ADDING an exception to read:
Exception: Liquefied petroleum gas (LPG) appliances or storage tanks shall not be located in any
building where LPG can pocket or pool.
Section 306.3 Appliances in attics. REVISE section by ADDING a third exception to read:
Exception 3: LPG gas-fired appliances shall not be installed in an attic.
Section 307.2.1 Condensate disposal. REVISE section by ADDING the following at the end ofthe
paragraph:
Condensate disposal shall be allowed to terminate as follows:
1. Into an approved fixture tailpiece, funnel drain, waste air gap fitting, floor sink, slop sink
and laundry tray.
2. At or below grade outside the building in an area capable of absorbing the condensate flow
without surface drainage.
3. Over roof drains that connect to drainage pipes, provided they terminate at or above grade in an
area capable of absorbing the condensate flow without surface drainage.
Section 307.2.2 Drain pipe materials and size. REVISE section by DELETING: "an approved
method" and ADDING the following table:
Equipment Capacity
Up to 10 tons of refrigeration
11 to 20 tons
21 to 40 tons
41 to 100 tons
Over 100 tons
Minimum Condensate Pipe Diameter
% inch
1 inch
1 ){ inch
1 ~ inch
2 inch
When two or more units are tied together, the minimum drain size shall be I".
ADD the following after "uniform slope", "not less than 307.1"
Section 403.3 Ventilation rate. REVISE section by ADDING the following after the exception:
The ventilation rate procedure (section 6.2) of ASHRAE Standard 62.1-2004 may be employed as an
alternative to the requirements of Section 403 of the International Mechanical Code provided the
following basic requirements are met:
1. The occupant density used for calculations must be at least equal to the default
2006 International Mechanical Code
Page 1 of2
occupant density (Table 6-1).
2. The system ventilation efficiency (section 6.2.5.2) must be used to determine
the design outside air intake.
3. In the case of multiple zones being served by a single system, the diversity of
the zones must be taken into account (section 6.2.5.3).
Section 504.3 Cleanout. REVISE section by ADDING the following at the end ofthe sentence:
Flexible connection between a vertical riser and a dryer shall be considered an acceptable means of
cleanout.
Section 1001.1 Scope. REVISE section by DELETING the text of exception 7 and REPLACING it
with the following:
Any boiler or lined water heater in excess of200,000 BTU shall be subject to inspection by federal or
state inspections. See Arizona Boiler Rules for regulations, Title 20, Chapter 5.
Section 1004.1 Standards. REVISE section by DELETING all text after the second sentence and
ADDING the following:
Boilers shall be designed and constructed in accordance with the ASME Boiler and Pressure Vessel
Code, and Arizona Boiler Rules, Title 20 Chapter 5.
Section 1109.1 Testing Required. REVISE section by DELETING "pure" in item #3 and
REPLACING it with "purge".
2006 International Mechanical Code
Page 2 of2
;;
..::.. !
'I)
Town of Marana
Amendments to the:
2006 International Property Maintenance Code
Section 101.1 Title. Add: "Town of Maran a" as name of adopting jurisdiction.
ADD new section 101.5 to read:
Section 101.5 Duty to clean and secure vacant buildings and structures. The owner of a vacant
building or structure shall remove accumulation of weeds, combustible waste or rubbish from the
interior of the building or structure and the surrounding yards; and shall secure all doors, windows,
and other openings.
Section 102.3 Application of other codes. REVISE this section by DELETING the paragraph and
replacing it with the following:
Repairs, additions or alterations to a structure, or change of occupancy, shall be done in accordance
with the procedures and provisions of the regulatory codes as adopted by this jurisdiction which are in
effect at the time such work is undertaken.
Section 102.7 Referenced codes and standards. DELETE this section in its entirety.
Section 103.5 Fees. REVISE this section by DELETING the paragraph and replacing it with the
following:
The fees for activities and services performed by the department in carrying out its responsibilities
under this code shall be as adopted by the jurisdiction under other ordinance.
Section 104.1 General. ADD behind the word official: "Housing and Zoning Inspectors"
Section 302.4 Weeds. REVISE this section by DELETING "or plant growth in excess of (jurisdiction
to insert heath in inches). REPLACE with "that present a fire hazard to property."
Section 303.2 Enclosures. REPLACE the 48 inches and the 54 unches with "60 inches."
Section 304.14 Insect Screens. DELETE: "During the period from (date) to (date)"
Section 607 Coolers and Air Conditioning. ADD new section:
Section 607.1 General. All residential occupancies shall be equipped with Evaporative Coolers or
Air Conditioning. Evaporative coolers shall be installed per the manufacturers requirements and water
discharged from coolers shall be routed to a minimum of 5 feet away from foundations. Ponding shall
not be allowed to prevent insect growth. Water systems shall be maintained to conserve water.
Section 702 Means of Egress. DELETE: "Fire Code" and INSERT: "Building Code".
Section 702.2 Aisles. DELETE: "Fire Code" and INSERT: "Building Code".
2006 International Property Maintenance Code
Page I of I
Town of Marana
; '1 - 5 Q- 6 ;:. J
;:, \/ j
Amendments to the:
2006 International Energy Conservation Code
Section 101.1 Title. Insert: [name of jurisdiction] as "Town of Marana".
Section 102.2.1 Protection of exposed foundation insulation. Delete this section.
ADD new section 1 02.4. to read:
102.4. Residential. Residential buildings constructed under the provisions of this standard shall
be permitted to use refrigerated air conditioning systems selected under the guidelines of the Air
Conditioning Contractors of America (ACCA) Manual J Procedures, Specifically Sections 7-27,
7-28 and 7-29 at outside conditions of 105 degrees F and inside conditions of75 degrees F.
Other provisions of this standard notwithstanding, air conditioning equipment shall have a
minimum SEER of 14 and gas-fired heating appliances shall have a minimum of90% efficiency.
ADD new section 102.4.1 to read:
102.4.1 Evaporative cooling. Evaporative cooling may be used for cooling or to reduce air
conditioning requirements but may not be used as the method of compliance to this standard
except for commercial buildings that use evaporative cooling as an economizer cycle on a
refrigeration or air conditioning application. Duct leakage through the evaporative device shall
be minimized during air conditioning and heating modes of operation.
ADD new section 102.4.2 to read:
102.4.2 Water Heating. The following service water heating systems are the only methods
acceptable:
a. Solar water heaters.
b. Instant gas or electric water heaters.
c. Heat pump electric water heaters.
d. Heat recovery water heaters from air conditioning or other sources.
e. Gas water heaters exceeding 80% efficiency.
f. Passive Solar with in-collector storage (ICS), thermal siphon and alike shall be installed with
no more than a total of 20 linear feet of piping between the solar system and the storage tank.
Exception: Other methods acceptable to the authority having jurisdiction showing 50%
reduction of water heating energy consumption.
Water heating systems that serve only hand sinks and/or a single mop sink may use a water
heater with up to 20 gallons of storage.
Section 104.1 General: REVISE section by ADDING a sentence at the end of the paragraph to
read:
Plans and specifications shall show the method of utilizing "beneficial use of solar energy".
2006 Sustainable Energy Standard Page I of 3
Section 202 General definitions. Add the following new definitions:
Beneficial Use of Solar Energy: The following devices/methods may be used to demonstrate
compliance:
Solar space heating systems.
Solar Photovoltaic systems.
Solar thermal/electric power generating systems, including stand-alone and grid connected
parabolic trough and dish.
Passive building heating for the winter through the use of optimum window shade structures
and orientation when designed by a registrant.
Solar water systems for domestic water heating or space heating.
Power Density: The total connected power load of all components of a building system,
including all auxiliary components and circuitry, without regard to the timing, scheduling, or
control of their operation, in w/ft2 or Btu-h/ft2.
Site Energy: Energy, other than recovered energy, utilized for any purpose on the site.
Source energy consumption shall be determined by multiplying the site energy usage in kBtu-h
per square foot by the following factors:
Site Enerl!V Factor
Electric 3.10
Gas 1.11
Wood 1.00
Solar (amount of displaced electric or gas) 0.00
Bedrooms: A room including clothes closets that may be used for sleeping purposes.
Section 404.3 Documentation. REVISE first sentence to read: ...proposed residence (proposed
design) be shown to have an annual energy cost that is less than 50% of the annual energy cost of
the standard reference design. . ..
Section 404.3 Documentation. REVISE section by ADDING a second exception to read:
Exception 2: Compliance with this chapter may utilize an analysis of the annual source energy
usage, as required in section 404.3, hereinafter called an annual energy analysis or shall not
exceed the source energy usage shown in Table 404.3.
Building kBtu/Sq.Ft./yr.
(source consumption)
Sq, Ft. Ranf!e Heatin~ Coolin~ Total
<1000 5 22 27
1000 - 1399 4 18 22
1400 -1799 4 16 20
1800 - 2199 4 15 19
>2200 4 14 18
Table 404.3
2006 Sustainable Energy Standard
Page 2 of3
ADD new section 404.5.3 to read:
404.5.3 Occupied mode. The occupied mode shall be not less than 10 hours in a 24-hour period.
ADD new section 502.1.2 to read:
Section 502.1.2 Energy Consumption. In multifamily dwellings, provisions shall be made to
determine the energy consumed by each tenant by separately metering individual dwelling units
or tenant spaces.
Section 503.2.7.1.1 Duct construction. REVISE section by ADDING the following to the end
of the sentence:
All low pressure ducts shall be leak tested in accordance with this standard. The tested rate of air
leakage is not to exceed 3% of conditioned floor area in CFM at 25 Pascals (0.1 inches WC)
prior to drywall and air handling equipment installation. A representative of the developer
and/or builder will perform a field inspection and leakage test ofthe ductwork before drywall
installation. The field representative will certify successful completion of this test.
Section 504.6 Hot water system controls. REVISE section by DELETING "conveniently",
PLACING a period after "automatically" and DELETING the rest of the sentence.
Section 505.6.2 Exterior lighting power. Add after the first sentence: The lighting power
densities shall not exceed the allowable limits of lighting established in the Marana Outdoor
Lighting Code.
2006 Sustainable Energy Standard
Page 3 of3
1-
'y' )
Town of Marana
2005 National Electrical Code Amendments
Chapter 2
Sec. 210.5. Identification for Branch Circuts. Change paragraph (C) to read:
(C) Ungrounded Conductors. Branch circuits shall conform to the following color
code.
Volts
Phase
System
Phase A
Phase B
Phase C
Grounded
Conductor
White
Grey
white
120/208
277/480
120/240
3
3
3
WYE
WYE
DELTA
Black
Brown
Black
Red
Orange
Orange
Blue
Yellow
Red
Exception NO.1: The above color coding is not required in residential occupancies.
Exception NO.2: Industrial occupancies holding a Registered Plant Permit may use
their own coding system.
Exception NO.3: Additions to an existing electrical system, where an acceptable color
coding system exists, the existing color coding system shall be continued.
Section 210.8. (B) Other than Dwellina Units. Revise by Changing (5) to (6) and
adding:
(6) Convenience receptacles located within 6 feet of any sink or washbasin.
Sec. 210.11 (C) Dwelling Units. Add Item (4) to read:
(4) Dishwasher and Garbage Disposer Branch Circuits-Dwelling Units. In
residential occupancies, dishwasher and garbage disposer may be on the same 20-
ampere branch circuit.
Sec. 220.89. Optional Calculation - Non-dwelling Unit Occupancies. Add section
to read:
The calculation of feeder or service load in non-dwelling unit occupancies shall be
permitted to be calculated in accordance with Table 220.89 in lieu of Part II of this
article. This section shall not apply to calculations performed under Sections 220.86,
220.87, or 220.88. Calculations for this section shall be prepared by a registered
electrical engineer.
Table 220.89. Add table to read:
I:\Council Packets\2006\12-05-2006 regular\2005 NEC.doc
Table 220.89
Optional Method-Demand Factors for
Non-Dwelling Unit Occupancies
Connected load up to and including 800 amperes
Connected load over 800 amperes
Footnote:
10ther demand factors may be permitted at the discretion of the Building Official.
Demand
Factors 1
(Percent)
100
90
Connected Loads from
Part II, Article 220
Sec. 225.32. Location. Add Exception NO.5:
Exception NO.5: For freestanding canopies, carports, towers, and similar structures, a
branch circuit disconnecting means shall be permitted to be located elsewhere on the
premises. A bonding conductor sized per Section 250.122 shall be run with the circuit
conductors.
Sec. 230.40. Number of Service-Entrance Conductor Sets. Add Exception NO.6:
Exception NO.1: For multiple-occupancy buildings, not more than two groups of one to
six disconnects shall be permitted to be tapped from a single service drop or set of
service lateral conductors. When mounted in individual enclosures, the groups of one
to six disconnects shall be separated by not more than six feet. Signage shall be
installed indicating the total number of disconnects for the structure. The meter and
disconnect for circuits described in 210-25 shall be counted as one of the disconnects.
Section 230.63 Enclosures. Add new section as follows:
Section 230.63 Enclosures. All service equipment rated 1000 Amperes or more located
inside a building shall be enclosed within a room or space separated from the rest of the
building by not less than one-hour fire resistive assembly in compliance with the
Building Code.
Sec. 230.70(8). Marking. Add two sentences to the subsection to read:
The markings shall be of sufficient durability to withstand the environment involved.
Identifying labels required for disconnecting means shall have engraved or raised letters
and be secured by screws or rivets (plastic tape shall not be considered durable
material).
Sec. 250.118: Types of Equipment Grounding Conductors. Delete items (5), (6), (7),
and (8).
Chapter 3
TABLE 310.5. Minimum Size of Conductors. Revise Table 310.5 to read:
Table 310.5
Voltage Rating of
Conductor - Volts
o through 2000
2001 through 8000
8001 through 15000
15001 through 28000
28001 through 35000
Minimum Conductor Size - AWG
14 Copper
12 Copper-Clad Aluminum
8 Aluminum
8
2
1
1/0
Sec. 340.10 Uses Permitted. Add item (8) to read:
(8) Type UF Cable shall be permitted to be used in mortar joints of adobe construction
in occupancies where the use of Nonmetallic Sheathed Cable is permitted by this code.
Sec. 348.60 Grounding and Bonding. Delete and replace with:
Flexible metal conduit shall not be permitted as a grounding means. An equipment
grounding conductor, sized in accordance with Table 250.122, shall be installed in all
flexible metal conduit. Where an equipment bonding jumper is required around flexible
metal conduit, it shall be installed in accordance with Section 250.102.
Exception: Listed and labeled factory assembled (prewired) fixtures and equipment with
flexible metal conduit will not require the addition of the grounding conductor in the
prewired raceway.
Sec. 350.10 Uses Permitted. Add item (4) to read:
(4) for feeders.
Sec. 350.60 Grounding and Bonding. Delete section and replace with:
Liquidtight flexible metal conduit shall not be permitted as a grounding conductor. A
conductor (as determined by Table 250.122) shall be installed in all Iiquidtight flexible
metal conduit. Where an equipment bonding jumper is required around liquidtight
flexible metal conduit, it shall be installed in accordance with Section 250.102.
Exception: Listed and labeled factory assembled (prewired) fixtures and equipment with
liquidtight flexible metal conduit will not require the addition of the grounding conductor
in the prewired raceway.
Sec. 352.12 Uses Not Permitted. Add subsection (G) and exception to read:
(G) where exposed in exterior locations.
Exception: Schedule 80 PVC may be used exposed out of doors.
Chapter 4
Sec. 410.16 (C) Means of Support. Add numbered paragraphs (1), (2), (3), and (4) to
read:
1. Mount luminaires (fixtures) installed in acoustical tile or lay-in panel ceilings in a
manner that will not compromise ceiling performance.
2. Pendant luminaire (fixture) hangers attached to main or cross runners shall have
approved support direct from structure.
3. Luminaires (fixtures) weighing less than 25.5kg (56 pounds) shall have two No.
12 gage hangers connected from the luminaire (fixture) housing to the structure
above. These wires may be slack.
4. Luminaires (fixtures) weighing over 25.5kg (56 pounds) shall be supported
directly from structure with approved hangers.
Sec. 422.12. Central Heating Equipment. Delete the word "Central" in all areas and
Add sentence to the end of the paragraph to read:
Evaporative cooler fan and pump motors shall be permitted to be connected to the
same branch circuit as the heating equipment when the controls do not permit the
evaporative cooler and the heating to operate at the same time or the air distribution
system is designed to not have the evaporative cooler and the heating equipment
operating at the same time.
Sec. 440.65. Leakage Current Detection and Interruption and Arc Fault Circuit
Interrupter. Delete section in its entirety.
Chapter 5
Sec. 501.30(8). Types of Equipment Grounding Conductors. Delete Exception,
including (1), (2), and (3).
Sec. 502.30(B). Types of Equipment Grounding Conductors. Delete Exception,
including (1), (2), and (3).
Sec. 503.30(B). Types of Equipment Grounding Conductors. Delete Exception,
including (1), (2), and (3).
Chapter 6
Sec. 680,26 (C)(3) b.. Equipotential Bonding Grid. Add to the end of subsection (1):
Where the pool design does not call for reinforcing in the pool shell or deck this section
does not require the installation of reinforcing steel.
Chapter 7
Sec. 725.12. Location of Power Supplies and Transformers. Add section:
(A) Accessibility. Class 1, Class 2 and Class 3 power supplies and transformers
shall be accessible.
(B) Prohibited locations.
1) In any closet or storage space within 6 inches of the front of the shelf.
C
Town of Marana
Pool and Spa
n Code
December 2006
4-) .
Town of Marana
• POOL and SPA CODE
Chapter 1
ADMINISTRATION
Title
Sec. 101. These regulations shall be known as the "Pool and Spa code ", may be cited as
such, and will be referred to herein as "this code ".
Purpose
Sec. 102. The purpose of this code is to provide minimum standards to protect the public
health, safety and welfare by regulating and controlling the design, access, construction and
maintenance of spas and swimming pools in this jurisdiction.
Scope
Sec. 103.(a) The provisions of this code shall apply to the erection, installation, alteration,
addition, repair, relocation, replacement, access and paths of travel, maintenance or use of any
spa/swimming pool system except as otherwise provided for in this code.
• (b) Where this code is in conflict with any other code, ordinance, or law, the most
restrictive shall govern.
(c) Wherever in this code reference is made to the appendix, the provisions in Appendix
A, Diagrams and Tables shall be part of this code. All other appendices are for reference only
and do not apply unless specifically adopted.
Existing Installations
Sec. 104.(a) Any spa/swimming pool system lawfully installed prior to the effective date
of this code may have its existing use, maintenance or repair continued if the use, maintenance or
repair is in accordance with the original design and location and no hazard to the public health,
safety or welfare has been created by such system.
(b) The owner or his designated agent shall be responsible for the maintenance of the
spa/swimming pool system in a safe and sanitary condition.
(c) All spas and swimming pools, whether usable or not, existing on the effective date of
this subsection (c) shall be and remain enclosed in accordance with the enclosure provisions of
this code applicable to all other spas and swimming pools of the same type of use, either private,
• semi - public or public.
Authority to Abate
Sec. 105.(a) Nuisance. Any portion of a spa/swimming pool found by the Administrative
Authority to be unsafe and /or insanitary as defined herein is hereby declared to be a nuisance.
(b) Abatement. Where a nuisance exists or a system is maintained in violation of this
code or any notice issued pursuant to this section, the Administrative Authority shall require the
nuisance or violation to be abated and where necessary, shall seek such abatement in the manner
provided by law.
Administrative Authority
Sec. 106. General. Whenever the term or title "administrative authority," "responsible
official," "building official," "chief inspector," "code enforcement officer," or other similar
designation is used herein or in any of the technical codes, it shall be construed to mean the
building official designated by the appointing authority of this jurisdiction.
Powers and Duties of Building Official
Sec. 107.(a) General. The building official is hereby authorized and directed to enforce
all the provision of this code and the referenced technical codes. For such purposes, he shall
have the powers of a law enforcement officer.
• (b) Deputies In accordance with prescribed procedures and with the approval of the
appointing authority, the building official may appoint such number of technical officers and
inspectors and other employees as shall be authorized from time to time. He may deputize such
inspectors or employees as may be necessary to carry out the functions of the code enforcement
agency.
(c) Right of Entry. Whenever necessary to make an inspection to enforce any of the
provisions of this code and the technical codes, or whenever the building official or his
authorized representative has reasonable cause to believe that there exists in premises an unsafe,
dangerous or hazardous swimming pool or spa, or appurtenances thereto, the building official or
his authorized representative may enter such premises at all reasonable times to inspect the same
or to perform any duty imposed upon the building official by such codes, provided that if such
premises be occupied, he shall first present proper credentials and demand entry; and if such
building or premises be unoccupied, he shall first make a reasonable effort to locate the owner or
other persons having charge or control of the premises and demand entry. Should entry be
refused, the building official or his authorized representative shall have recourse to every remedy
provided by law to secure entry.
(d) Stop Orders. Whenever any work is being done contrary to the provisions of this
code and the technical codes, the building official may order the work stopped by notice in
writing served on any persons engaged in the doing or causing such work to be done, and any
such persons shall forthwith stop such work until authorized by the building official to proceed
• with the work.
2
(e) Occupancy Violations. Whenever any spa/swimming pool or spa/swimming pool
service equipment therein regulated by this code and the technical codes is being used contrary to
• the provisions of such codes, the building official may order such use discontinued by written
notice served on any person causing such use to be continued. Such person shall discontinue the
use within the time prescribed by the building official after receipt of such notice to make the
spa/swimming pool, or portion thereof, comply with the requirements of such codes.
(f) Authority to Disconnect Utilities. The building official or his authorized
representative shall have the authority to disconnect any utility service or energy supplied to the
spa/swimming pool or spa/swimming pool equipment therein regulated by this code or the
technical codes in case of emergency where necessary to eliminate an immediate hazard to life or
property. The building official shall whenever possible notify the serving utility, the owner and
occupant of the spa/swimming pool or spa/swimming pool equipment of the decision to
disconnect prior to taking such action, and shall notify such serving utility, owner and occupant
of the spa/swimming pool or spa/swimming pool service equipment, in writing, of such
disconnection immediately thereafter.
(g) Authority to Condemn Service Equipment. Whenever the building official
ascertains that any spa/swimming pool service equipment regulated in the technical codes has
become hazardous to Life, health, property, or becomes insanitary, he shall order in writing that
such equipment either be removed or restored to a safe or sanitary condition, whichever is
appropriate. The written notice itself shall fix a time limit for compliance with such order. No
person shall use or maintain defective service equipment after receiving such notice.
• When such equipment or installation is to be disconnected, a written notice of such
disconnection and causes therefor shall be given within 24 hours to the serving utility, the owner
or occupant of such spa/swimming pool or premises.
When any service equipment is maintained in violation of the technical codes and in
violation of any notice issued pursuant to the provisions of this section, the building official shall
institute any appropriate action to prevent, restrain, correct or abate the violation.
(h) Connection after Order to Disconnect. No person shall make connections from any
energy, fuel or power supply nor supply energy or fuel to any equipment which has been
disconnected or ordered to be disconnected by the building official or the use of which has been
ordered to be disconnected by the building official until the building official authorizes the
reconnection and use of such equipment.
(i) Liability. The building official, or his authorized representative charged with the
enforcement of this code and the technical codes, acting in good faith and without malice in the
discharge of his duties, shall not thereby render himself personally liable for any damage that
may accrue to persons or property as a result of any act or by reason of any act or omission in the
discharge of his duties. Any suit brought against the building official or employee because of
such act or omission performed by him in the enforcement of any provision of such codes shall
• be defended by this jurisdiction until final termination of such proceedings, and any judgment
resulting therefrom shall be assumed by this jurisdiction.
3
Such codes shall not be construed to relieve from or lessen the responsibility of any
person owning, operating or controlling any spa/swimming pool structure or spa/swimming pool
• service equipment therein for any damages to persons or property caused by defects, nor shall the
code enforcement agency or its parent jurisdiction be held as assuming any such liability by
reason of the inspections authorized by such codes or approvals issued under such codes.
(j) Cooperation of Other Officials and Officers. The building official may request, and
shall receive so far as is required in the discharge of his duties, the assistance and cooperation of
other officials of this jurisdiction.
(k) Review and Update of this Code. The Administrative Authority shall periodically
review and update the code, or parts thereof, as required to maintain compatibility with the
National Spa and Pool Institute Standards.
Violation and Penalties
Sec. 108. It shall be a civil infraction for any person, firm or corporation to erect,
construct, enlarge, alter, repair, move, improve, remove, convert or demolish, equip, use, occupy
or maintain any spa/swimming pool or spa/swimming pool service equipment or cause or permit
the same to be done in violation of this code and the technical codes.
Permits Required
Sec. 109.(a) General. It shall be a civil infraction for any person to install, remove, alter,
repair or replace or cause to be installed, removed, altered, repaired, or replaced any
spa/swimming pool, or part thereof, in a building or premises without first obtaining a permit to
do such work from the Administrative Authority.
(b) Separate Permits. A separate permit shall be obtained for each spa/swimming pool.
EXCEPTION: Repairs and remodeling which involve only the replacement of
component parts of existing work with similar materials and which do not affect any
structural, electrical, mechanical or plumbing installations.
Application for Permit
Sec. 110.(a) General. Any person legally entitled to apply for and receive a permit shall
make such application on forms provided for that purpose. He shall give a description of the
character of the work proposed to be done and the location, ownership, occupancy and use of the
premises in connection therewith. The Administrative Authority may require plans,
specifications or drawings and such other information as he may deem necessary before issuance
of a permit per Section 109 of this code.
(b) Plans Required. Application for permits for new construction shall be accompanied
by plans as required by the Administrative Authority, and in sufficient detail including the
• following:
4
1. Plot plans dimensioned and drawn to a reasonable scale and showing at least the
following:
•
A. Property lines, easements, right -of -way of record, and overhead utilities adjacent to
spa/pool area or over the property.
B. Existing structures, fencing, retaining walls, irregular grades, and other relevant
characteristics adjacent to spa/pool area. All paths of travel via sidewalks, stairs,
lighting shall be indicated on the plan.
C. The proposed spa/pool shape and type, dimensioned and located to show setbacks,
side yards, and clearances from existing structures adjacent to spa/pool area.
D. The proposed mechanical equipment pad location as to setbacks and side yards.
E. All diving and deck equipment items, if included.
F. The proposed deckwork configuration, showing its anticipated drainage.
G. The anticipated overall drainage of the spa/pool site and the location of backwash
water disposal if any.
H. The proposed or existing spa/pool barrier /enclosure.
•
2. Structural plan showing at least the following:
A. The type of construction.
B. The spa/pool dimensions, including the depth, surface area, and adequate
cross- sections drawn to scale.
C. Computations, stress diagrams, and other data sufficient to show the correctness of
the plans; including the reinforcing steel schedule and detail, and design to handle
any surcharge from buildings, water features or other structure, if applicable.
D. The interior finish details.
E. The spa/pool edge details.
3. Mechanical plan showing at least the following:
A. The volume, system flow rate in gallons per minute, and turnover in hours.
• B. The type and size of filtration system and means of waste disposal.
5
C. The type and size of spa/pool heater, including the method of venting and
provisions for combustion air, if applicable.
•
D. The spa/pool piping layout with all sizes shown and types of material to be used,
and showing the location of the main outlet, surface skimmers, and inlets.
E. The rated capacity of the spa/pool pump in G.P.M. (L.P.M.) at the design head with
the size and type of motor indicated and identified as to type of pump.
F. The means of adding makeup water and back flow provisions.
G. The size, length from source to heater and routing of the gas line, if applicable.
H. Size and location of existing electrical service.
4. All plans and documents submitted shall be on substantial paper and shall show the
name and address of the person under whose supervision the documents were prepared.
If the Administrative Authority determines that the plans, specifications, drawings,
descriptions, or information furnished by the applicant is in compliance with this code, he shall
issue the permit applied for' upon payment of the required fee as hereinafter fixed. The
Administrative Authority shall further require that permits be obtained by the persons responsible
for all of the electrical, plumbing, related utility connections and heating work in conjunction
• with issuance of the building permit for the spa/swimming pool structure.
The above requirements shall not void any requirements by any other department having
jurisdiction.
Cost of Permit
Sec. 111. Every applicant for a permit to install, alter or repair a spa/swimming pool
system or part thereof, shall state in writing on the application form provided for that purpose,
the character of work proposed to be done and the amount and kind in connection therewith,
together with such information pertinent thereto as may be required. The cost shall be as set
forth in the fee schedule adopted by this jurisdiction.
Work to be Inspected
Sec. 112. All spa/swimming pool installations or alterations thereto including walls and
barriers, paths of travel, equipment, piping and appliances related thereto shall be inspected by
the Administrative Authority before said work is covered to insure compliance with the
requirements of this code.
Inspection Requests.
• Sec. 113. It shall be the duty of the person doing the work authorized by the permit to
notify the Administrative Authority that said work is ready for inspection. Such notification shall
be given not less than twenty -four hours before the work is to be inspected.
6
• It shall be the duty of the person doing the work authorized by the permit, to make sure
that the work will stand the test prescribed elsewhere in this code, before giving the above
notification.
Reinspections
Sec. 114. A reinspection fee may be assessed for each inspection or reinspection when
such portion of work for which inspection is called is not complete or when corrections called for
are not made.
This section is not to be interpreted as requiring reinspection fees the first time a job is
rejected for failure to comply with the requirements of this code or the technical codes, but as
controlling the practice of calling for inspections before the job is ready for such inspection or
reinspection.
Reinspection fees may be assessed when the permit card is not properly posted on the
work site, the approved plans are not readily available to the inspector, for failure to provide
access on the date for which inspection is requested, or for deviating from plans requiring the
approval of the building official.
To obtain a reinspection, the applicant shall file an application therefor in writing upon a
form furnished for that purpose, and pay the reinspection fee in accordance with the fee schedule
• adopted by this jurisdiction.
In instances where reinspection fees have been assessed, no additional inspection of the
work will be performed until the required fees have been paid.
Suspension or Revocation.
Sec. 115. The building official may, in writing, suspend or revoke a permit issued under
the provisions of this code and the technical codes whenever the permit is issued in error or on
the basis of incorrect information supplied, or in violation of any ordinance or regulation or any
of the provisions of these codes.
Unconstitutionality. -
Sec. 116. If any section, subsection, sentence, clause or phrase of this code is, for any
reasons, held to be unconstitutional, such decision shall not affect the validity of the remaining
portions of this code. The legislative body hereby declares that it would have adopted this code,
and each section, subsection, clause or phrase thereof, irrespective of the fact that any one or
more sections, subsections, sentences, clauses and phrases be declared unconstitutional.
Board of Appeals /Advisory Board
Sec. 117. The Board of Appeals /Advisory Board of this jurisdiction is authorized to
determine the suitability of alternate materials and methods of construction and to provide for
reasonable interpretations of this code.
7
Chapter 2
1111 DEFINITIONS
Sec. 201. General. For the purpose of this code, certain terms, phrases, words and their
derivatives shall be construed as specified in this chapter. Words used in the singular include the
plural and the plural the singular. Words used in the masculine gender include the feminine and
the feminine the masculine.
Where terms are not defined, they shall have their ordinary accepted meanings within the
context with which they are used. Webster's Third New International Dictionary of the English
Language, Unabridged, copyright 1981, shall be considered as providing ordinarily accepted
meanings.
Sec. 202. A
ABRASION HAZARD is a sharp or rough surface that would scrape the skin upon
chance or by normal use modes.
ACCESSIBLE is easily exposed for inspection and the replacement of materials and /or
parts with the use of simple tools, i.e., screwdriver, pliers or wrench.
AIR INDUCTION SYSTEM is a system activated by a separate air power unit whereby
• air is induced into hollow ducting built into or affixed on a spa/swimming pool floor, bench or
other Location.
ALLEY is any public way or thoroughfare, not designated as a street, which has been
dedicated or deeded to the public for public use.
APPURTENANCE is a subordinate part or adjunct; accessory object.
APPROVED is acceptable by the appropriate jurisdiction.
Sec. 203. B
BACKWASH is the process of thoroughly cleaning the filter medium and /or elements
by the reverse flow of water.
Backwash Cycle is the time required to thoroughly backwash the filter medium and /or
elements and the contents of the filter vessel.
Backwash Piping is the pipe or hose going from the backwash outlet of filter system to a
disposal point.
• Backwash Rate is the rate of flow of water through a filter during the backwash cycle,
normally expressed in U.S. gallons per minute per square foot of effective filter area.
8
BARRIER is an object or structure which separates a swimming pool or spa from a
• building.
BATHER/SWIMMER is any person using a spa/pool and adjoining deck area for the
purpose of water sports, recreation or related activities.
BEGINNERS AREA is that water area in pools which is three feet (3') or less in water
depth.
BROMINATOR is a device to apply or to deliver a bromine disinfectant to water at a
controlled rate.
BROMINE is a chemical element that exists as a liquid in its elemental form or as a part
of a chemical compound which is an oxidant and a biocidal agent used to disinfect pool water.
Sec. 204. C
CARTRIDGE is a replaceable porous element, used in one type of filtering system.
Depth -Type Cartridge is a filter cartridge with a medium relying on penetration of
particles into the medium for removal and providing adequate holding capacity of such particles.
Surface -type Cartridge is a filter cartridge with a medium relying on retention of
• particles on the surface of the cartridge for removal.
CASUAL CONTACT is contact of any body part occurring by normal use modes.
CHEMICAL FEEDER is a device for applying chemicals to spa/pool water.
CHLORINATOR is a device to apply or to deliver a chlorine disinfectant to water at a
controlled rate.
CHLORINE is a chemical element that exists as a gas in its elemental form or as a part
of a chemical compound which is an oxidant and a biocidal agent used in pool water disinfection.
CHLORINE GENERATOR is equipment that generates chlorine, hypochlorous acid,
or hypochlorite on site for disinfection and oxidation of water contaminants.
CPSC is the Consumers Product Safety Commission
Washington, D.C. 20207
COVE is the radius between the wall and the floor.
COVER, POOL /SPA SAFETY is a cover that uses an electric motor to open and close
a retractable barrier over the entire pool surface.
COVER, SECURABLE SPA is a cover that completely covers the spa, and is equipped
with hardware which requires special tools, i.e., keys, alien wrenches, etc. for removal.
9
• Sec. 205. 'D
DECK is that area immediately adjacent to a spa/pool that is specifically constructed or
installed for use by bathers.
DECK - ABOVE GROUND is any structure that is on top of or adjacent to the outer
edges of the spa/pool that is specifically constructed or installed for the use of bathers.
DEEP AREA is the portion of a pool having water depths in excess of five feet (5').
DISINFECTANT is the application of energy or chemicals to kill undesirable or
pathogenic (disease- causing) organisms.
DIVING EQUIPMENT, COMPETITIVE is competitive diving equipment that shall
include diving boards and fulcrum- setting diving stands intended to provide adjustment for
competitive diving.
DIVING UNIT is any permanently installed natural or man made object used for the
purpose of diving or jumping into the water and further defined as follows:
Diving Board is a recreational mechanism for entering a swimming pool, consisting of a
semirigid board that derives its elasticity through the use of a fulcrum mounted below the board.
Diving Equipment, Manufactured is manufactured diving equipment that shall include
diving boards, jump boards, spring boards and starting platforms. Architectural features such as
decorative rocks and elevated bond beams are not considered to be manufactured diving
equipment.
Jump Board is a recreational mechanism that has a coil spring, Ieaf spring or
comparable device located beneath the board which is activated by the force exerted by jumping
on the board.
Starting Platform is a device installed on a swimming pool, designed for competitive
swimming events.
Sec. 206. E
EDGE GUARDS are shields designed to cover sharp edges in above - ground swimming
pools.
EFFECTIVE FILTER AREA is a total surface area through which designed flow rate
will be maintained during filtration.
Permanent Medium Type is the filter surface that is perpendicular to the flow
direction.
10
Cartridge Type is the cartridge area exposed to the direct flow of water. This excludes
cartridge ends, seals, supports and other areas where flow is impaired.
ENCLOSURE is an object or structure which surrounds a swimming pool. An
enclosure may also serve as a barrier.
EXISTING POOL /SPA is a spa or pool in existence or for which a permit to construct
has been obtained and construction commenced on or before the effective date of this code.
Sec. 207. F
FACTOR OF SAFETY is the ultimate load divided by the safe load or the ultimate
strength divided by the allowable stress.
FILTER is a device that removes undissolved particles from water by recirculating the
water through a porous substance (a filter medium or element).
Filter Aid is a type of finely divided medium used to coat a septum type filter; usually
diatomaceous earth, processed perlite or similar material.
Permanent Medium Filter is a filter that utilizes a medium, e.g. sand, that under normal
use will not have to be replaced.
4 Diatomaceous Earth Filter is a filter that utilizes a thin coating of diatomaceous earth
over a porous fabric as its filter medium that periodically must be replaced.
Cartridge Filter is a filter that utilizes a porous element that acts as a filter medium.
FILTER CYCLE is the operating time between cleaning and /or backwash cycles.
FILTER ELEMENT is a device within a filter tank designed to entrap solids and
conduct water to a manifold, collection header, pipe, or similar conduit and return it to the pool.
A filter element usually consists of a septum and septum support, or a cartridge.
Filter Medium is a finely graded material (such as sand, diatomaceous earth, polyester
fabric, anthracite, etc.) that removes filterable particles from the suction of a pump.
FILTER, PRESSURE -TYPE is a filter that operates under pressure generated by a
pump.
FILTER, VACUUM (or SUCTION) is a filter that operates under a vacuum from the
suction of a pump.
FILTRATION FLOW is the design rate of flow, in gallons per minute (GPM) or
• gallons per hour (GPI-1) through the filter system with a new, clean filter medium.
FILTRATION RATE is the rate of filtration of water through a filter during the filter
cycle expressed in U.S. gallons per minute per square foot of effective filter area.
11
• FLOOR is the bottom surface of a spa/pool ranging from a horizontal plane up to a
m aximum of a 45 degree slope.
FOOTHOLD/HANDHOLD is any protrusion or indention with any portion greater than
one and one -half inches from the exterior vertical surface; or
For picket, wrought iron or other type of barrier or enclosure having openings where a
sphere of one and one -half inch diameter can penetrate to depth greater than one and one -half
inches from the exterior vertical surface. -
Sec. 208. G
GATE is a removable framework or solid structure that swings on hinges or slides
horizontally to control exit or entrance through a fence or wall.
Sec. 209. 11
HANDHOLD/HANDRAIL is a device that can be gripped by a bather for the purpose
of resting and /or steadying him/herself. It is not limited to but may be located within or without
the spa /pool or as part of a set of steps or deck- installed equipment.
HANDHOLD/FOOTHOLD see FOOTHOLD/HANDHOLD, Sec. 207
• HEALTH DEPARTMENT - Pima County r Arizona State Department of Health
ty p
HOT TUB is a spa constructed of wood with sides and bottom formed separately; and
the whole tub joins together by pressure from the surrounding hoops, bands or rods; as distinct
from spa units formed of plastic, concrete, metal or other materials.
HYDROJET is a fitting that blends air and water creating a high velocity, turbulent
stream of air- enriched water.
HYDROTHERAPY SPA or HOT TUB is a unit that may have a therapeutic use which
is not drained, cleaned or refilled for each individual. It may include, but not be limited to,
hydrojet circulation, hot water, cold water mineral baths, air induction bubbles, or any
combination thereof. Industry terminology for a spa includes, but is not limited to, "therapeutic
pool," "hydrotherapy pool," "whirlpool," "hot spa," etc. NSPI standards exclude facilities used or
under the direct supervision and control of licensed medical personnel.
Sec. 210: I
INLET, RETURN is the aperture or fitting through which the water under positive
pressure return into the pool.
Sec. 211. J
12
JUMP BOARD is a recreational mechanism that has a coil spring, leaf spring, or
comparable device located beneath the board which is activated by the force exerted in jumping
. on the board.
Sec. 212. K No definitions
Sec. 213. L
LADDERS are a series of generally vertically separated treads or rungs connected by
vertical rail members or independently fastened to an adjacent vertical pool wall.
Deck Ladder is a ladder for deck access from outside the pool.
In -Pool Ladder is a ladder located in a pool to provide ingress and egress from the deck.
Limited Access Ladder is any ladder with provision for making entry inaccessible when
a pool is not in use, i.e., swing -up, slide -up or equivalent.
Portable Ladder is a ladder that is intended to be removed easily when a pool is not in
use.
LIFEGUARD is a person expert in rescue and resuscitation and properly certified by a
duly authorized agency of the appropriate jurisdiction.
• LINER is a membrane that acts as a container for the water.
LOWER DISTRIBUTION SYSTEM (UNDERDRAIN) is used in the bottom of a
permanent media filter to collect the water uniformly during the filtering and to distribute the
backwash uniformly during the backwashing.
Sec. 214. M
MAKE-UP WATER is fresh water used to fill or refill the pool. (See also SOURCE
WATER).
Sec. 215. N
NEW POOL CONSTRUCTION is the activity of building .or installing a pool
structure, and its component parts, where no such structure has previously existed.
NONSWIMMING AREA is any portion of a pool where water depth, offset Iedges, or
similar irregularities would prevent normal swimming activities.
NSPI is the National Spa & Pool Institute
2111 Eisenhower Avenue
Alexandria, VA. 22314
13
Sec. 216. 0
. OUTLET, SUCTION is the aperture or fitting through which the water under negative
pressure is drawn from the spa/pool. Measures to prevent entrapment shall be incorporated into
the pool design or devices installed to break suction.
OVERFLOW SYSTEM refers to removal of pool surface water through the use of
overflows, surface skimmers, and surface water collection systems of various design and
manufacture.
OZONE, LOW OUTPUT GENERATING EQUIPMENT refers to units which will
produce ozone in air at a concentration less than 500 ppm.
Sec. 217. P
PATH OF TRAVEL is any sidewalk, stair or path leading from the home or from a
public way. Changes in elevation, stairs, handrails and guards shall conform to the current
Building Code. Paths adjacent on elevated areas must be provided with guards when within two
feet . of the drop or slope exceeding 1 in 2.
PINCHING HAZARD is any configuration of components that would pinch or entrap
the fingers or toes of a child or adult.
• POOL, PERMANENTLY INSTALLED, is a pool that is constructed in the ground or
i n a building in such a manner that it cannot be readily disassembled for storage.
Aboveground Pool is a pool of any shape that has a constant depth of more than twenty
four (24 ") inches, or holds more than 2,500 gallons of water or has a water surface area in excess
of 150 square feet, installed entirely above ground. For the purpose of the National Electrical
Code, see also NEC Article 680 and the definition of storable swimming or wading pools.
Inground Swimming Pool is any pool whose sides rest in partial or full contact with the
earth.
On- Ground Swimming Pool is an aboveground pool whose sides rest fully above the
surrounding earth and that has a deep area below the ground level where diving equipment is
prohibited.
Public Pool is any pool, other than a residential pool, which is intended to be used for
swimming or bathing and is operated by•an owner, lessee, operator, licensee or concessionaire, ,
regardless of whether a fee is charged for use. References within the standard to various types of
public pools are defined by the following categories:
Class A: Competition Pool is any pool intended for use for accredited competitive
aquatic events such as Federation International De Natation Amateur (FINA), U.S. Swimming,
U.S. Diving, National Collegiate Athletic Association (NCAA), National Federation of State
• High School Associations (NFSHSA), etc. The pool may also be used for recreation.
Class B: Public Pool is any pool intended for public recreational use.
14
Class C: Semi- Public Pool is any pool operated solely for and in conjunction with
lodgings such as, but not limited to, hotels, motels, apartments, condominiums, mobile home
parks.
Class D: Other Pool is any pool operated for medical treatment, therapy, exercise, lap
swimming, recreational play, and other special purposes, including, but not limited to, wave or
surf action pools, activity pools, splash pools, kiddie pools and play areas.
Public pools may be diving or nondiving. If diving, they shall be further classified into
types as an indication of the suitability of a pool for use with diving equipment.
Type VI through Type IX are semi - public /public pools suitable for the installation of
diving equipment by type.
Type N is a semi- public /public pool where the installation of diving equipment is
prohibited.
Wading Pool is a pool that has a shallow depth used for wading.
Residential Pool is any constructed pool, permanent or non - portable which is intended
for non - commercial use as a swimming pool by not more than one owner family and their guests,
and which is over twenty -four inches (24 ") in depth and (a) has a surface area exceeding 80
• square feet, or (b) a volume over 2,500 gallons.
Residential pools shall be further classified into types as an indication of the suitability of
a pool for use with diving equipment.
Type 0 is any residential pool where the installation of diving equipment is prohibited.
Type T through Type V is any residential pool suitable for the installation of diving
equipment.
Semi- Artificial is an outdoor bathing place which is partly artificial and partly natural in
character.
Other pools such as those operated for medical treatment, therapy, exercise, lap
swimming, recreational play, and other special purposes are intended to be covered within the
scope of this code.
PSI is an abbreviation for POUNDS PER SQUARE INCH.
PUMP is a mechanical device, usually powered by an electric motor, which causes
• hydraulic flow and pressure for the purpose of filtration, heating, and circulation of pool water.
PUNCTURE HAZARD is any surface or protrusion that would puncture a bather's skin
under casual contact.
15
Sec. 218. Q No Definitions
•
Sec. 219. R
REHABILITATION is the activity of restoring all or part of a pool structure, and its
component parts, back into good condition, including the rebuilding and /or replacing of worn and
broken parts of components.
REMOVABLE is the capability of being disassembled with the use of only simple tools
such as a screwdriver, pliers or wrench.
RETURN PIPING is that piping which carriers water from the filter to the spa/pool.
ROPE AND FLOAT LINE is a continuous line not less than one -fourth inch (1/4 ") in
diameter, which is supported by buoys and attached to opposite sides of a pool to separate the
deep and shallow ends.
Sec. 220. S
SAFETY COVER is a dome cover placed over the suction inlet so as to prevent
entrapment.
SHALLOW AREA is a portion of a pool with water depths less than five feet (5').
SKIMMING SYSTEM is overflow system which encompasses perimeter type
overflows, surface skimmers and surface water collection systems of various design and
manufacturer.
SLIP RESISTING is a surface that has been so treated or constructed as to significantly
reduce the chance of slipping. The surface should not be an abrasion hazard.
SLOPE is an inclined surface.
SOURCE WATER is fresh water used to fill or refill the pool (see also MAKE -UP
WATER).
SPA (see HYDROTHERAPY SPA or HOT TUB) is a hydrotherapy unit of irregular or
geometric shell design.
Portable Spa, Residential is a spa in which all control, water - heating, and
water- circulating equipment is an integral part of the product. Portable residential spas may be
permanently wired or cord - connected. The spa shall be movable and above ground.
Permanent Spa is a spa in which the water- heating and water - circulating equipment is
not an integral part of the product. Permanent spas may employ separate components such as an
individual filter, pump, heater, and controls, or they may employ assembled combinations of
various components.
16
• Public Spa is any spa, other than an residential spa, which is operated by an owner,
lessee, operator, licensee or concessionaire, regardless of whether a fee is charged for use.
Semi - public Spa is any spa operated solely for and in conjunction with lodgings such as,
but not limited to, hotels, motels, apartments, condominiums, mobile home parks.
STATIONARY DIVING PLATFORM is used for diving and is constructed or located
on site. It may be natural or artificial rocks, pedestals, or other items constructed on site.
Architectural features such as decorative rocks and elevated bond beams are not considered to be
manufactured diving equipment.
STEPS, RECESSED STEPS, AND RECESSED TREADS is a means of pool ingress
and egress that may be used in conjunction with one another.
Steps are riser /tread or series of risers /treads extending down from the deck and
terminating at the pool wall. They may be recessed so that all risers are located outside of
swimming areas.
Recessed Treads are a series of vertically spaced cavities in the pool wall creating tread
areas for stepholes.
• SUCTION PIPING is that piping which moves water from the spa/pool to the filter.
SURFACE SKIMMING SYSTEM is the term that encompasses perimeter -type
overflows, surface skimmers, and surface water collection systems of various design and
manufacture.
SWIMMERJBATHER is any person using a spa/pool and adjoining deck area for the
purpose of water sports, recreation or related activities.
Sec. 221. T
TAMPERPROOF is a term that means tools are required to alter or remove portions of
the equipment.
TOXIC is a term meaning that a given substance has an adverse physiological effect on
man or other living organisms.
TREAD CONTACT SURFACE means an area that comes in contact with surfaces of a
ladder, step, stair or ramp.
TURNOVER is the period of time (usually in hours) required to circulate a volume of
water equal to the spa/pool capacity.
Sec. 222. U
17
UNDERWATER LIGHT is a fixture designed to illuminate a pool beneath the water
411 surface.
Wet Niche Light is a watertight and water cooled light unit placed in a submerged, wet
niche in the pool wall and accessible only from the pool.
Dry Niche Light is a light unit placed behind a watertight window in the spa/pool wall.
Sec. 223. V
VERTICAL is a wall up to a positive 11 degree angle towards the spa/pool's interior
from plumb.
VINYL LINER is that membrane that acts as a container for the water.
Sec. 224. W
WALL is the interior spa/pool wall surface consisting of surfaces from the plumb to a 45
degree slope.
WASTE WATER DISPOSAL SYSTEM is the system, approved by the building
official, such as a storm sewer, open pit, leach field, irrigation system or to a wash or street
when the chorine is neutralized.
WATERLINE is a term defined in one of the following ways:
• Skimmer Sy stem - The waterline shall be at midpoint of the operating range of the
skimmers.
Overflow System - The waterline shall be at the top of the overflow rim.
WINTERIZING is the procedure for preparing spa/pools from freezing weather.
Includes chemical treatment of the standard water, plus physical and chemical protection of the
pool and its equipment against freezing.
Sec. 225. X No Definitions
Sec. 226. Y No Definitions
Sec. 227. Z No Definitions
18
Chapter 3
• RESIDENTIAL. SWIMMING POOLS
Scope
Sec. 301.(a) This chapter is intended to cover permanent in- ground pools intended to be
used for swimming.
1. This chapter is intended to cover certain aspects of the design, equipment, operation,
installation, new construction and rehabilitation of swimming pools. This code may be met
notwithstanding certain variations in equipment, materials, and design.
(b) This chapter is not meant to cover semi - public, public pools, or above - ground pools
(c) Other chapters are referenced in this chapter for items not covered.
Materials of Construction
Sec. 302. Swimming pools and all appurtenances thereto shall be constructed of
materials which are nontoxic to man and the environment; which are impervious and enduring;
which can withstand the design stresses; and which will provide a watertight structure with a
smooth and easily cleaned surface without cracks or joints, excluding structural joints, or to
• which a smooth, easily cleaned surface finish is applied or attached.
Structural Design
Sec. 303.(a) Prior to construction, rehabilitation, or alteration of a permanently installed
residential pool, plans and specifications shall be submitted to the administrative authority for
review, approval, and issuance of a permit to construct or rehabilitate, as may be required.
(b) The structural design and materials used shall be in accordance with generally
accepted good structural engineering practices.
(c) Sand or earth shall not be permitted as an interior finish in a swimming pool.
(d) In climates subject to freezing temperatures, the pool shell and appurtenances,
piping, filter system, pump and motor, and other components shall be so designed and
constructed to facilitate protection from damage due to freezing.
(e) The surfaces within the pool intended to provide footing for bathers shall be
designed to provide a slip - resisting surface. The roughness or irregularity of such surfaces shall
not cause injury or discomfort to the feet during normal use.
(f) The colors, patterns, or finishes of the pool interior shall not be such as to obscure
• the existence or presence of objects or surfaces within the pool.
Dimensional Design
19
Sec. 304.(a) No limits are specified for shape of swimming pools except that
consideration shall be given from the standpoint of safety and circulation of the swimming pool
water.
1. There shall be no protrusions, extensions, means of entanglement, or other
obstructions in the swimming area which can cause the entrapment or injury of the bather.
2. There shall be construction tolerances allowed on all dimensional designs. Overall
length, width, and depth in the deep end may vary plus or minus three inches. All other overall
dimensions may vary plus or minus two inches unless otherwise specified.
(b). Walls shall not be greater than 11 inches from plumb, as shown in Appendix A,
Figure 2, for a minimum depth of two feet, nine inches (2' -9 ") from the waterline in deep areas or
two feet, three inches (2' -3 ") in shallow areas. Below these depths the wall may be radiused to
join the floor. Type I pools shall have plumb walls as shown in Appendix A, Figure 6.
(c). Floor slopes shall, as a minimum, comply with the following:
1. All slopes shall be uniform.
2. The slope of the floor from the shallow end wall towards the deep end shall not
exceed one foot in seven feet (1':7') to the point of the first slope change.
• 3. The point of the first slope change shall be defined as the point at which the floor
slope exceeds one foot in seven foot (1`:7') and is at least six feet (6') from the shallow end wall.
4. The slope of the floor from the point of the first slope change to the deep end wall
shall not exceed one foot in three feet (1':3').
(d). Water depths at the shallow end of the swimming area shall be a minimum of two
feet, nine inches (2' -9 ") and a maximum of three feet, six inches (3' -6 ") except for special
purpose pools.
1. No minimum water depth shall be specified in a nonswimming area. The
nonswimming area shall be visually set apart from swimming areas of the pool.
(e). Pools of the type where manufactured diving units are permitted shall have the area
and depth of water in compliance with the drawings for Type I through Type V pools, shown in
Appendix A. •
1. Where a manufactured diving unit is installed, it shall conform to the specifications
set forth in Section 305(g) and shall be so Iocated in the diving area of the pool so as to provide
the minimum dimensions shown in Appendix A for Types I through V pools.
• 2. The tip of the manufactured diving unit shall be located at Point "A ", which is the
reference point for all other dimensions.
20
3. Minimum unobstructed head room from the top of the manufactured diving unit shall
• be provided for diving in accordance with the following table unless greater dimensions are
called for by the manufacturer.
Pool Type Head Room
I Not Permitted
II 12 feet
III 12 feet
IV 13 feet
V 14 feet
4. The minimum allowable underwater cross sections at B, C, and D shall be as shown
on drawings of Types I through V pools in Appendix A.
5. Constant depth swimming pools on which manufactured diving units are prohibited
(Type 0) with water depths not exceeding four feet (4') shall not be limited in dimensional
design as provided in Sections 304(a) through 304(d).
6. Stationary diving platform(s) built on site shall be located in the diving area of the
pool so as to provide the minimum dimension as shown in Appendix A, Figure 6 at a maximum
height of three feet (3'). Point "A" shall be eighteen inches (18 ") in front of the wall at the
platform centerline. The stationary diving platform(s) sgach unit.
41111 2. A label shall be permanently affixed to the manufactured diving equipment or jump
b oard and shall include:
A. Manufacturer's name and address.
B. Board equipment length.
C. Fulcrum setting specifications (if applicable).
D. Reference to the current year of the applicable section and NSPI
standard.
3. Manufactured diving equipment suitable for installation on a lower pool type may be
installed on any higher pool type providing no less a water envelope is provided from the tip of
the board than called for in the lower type.. Manufactured diving equipment of a greater type,
e.g., Type III, shall not be installed on a pool of lesser type, e.g., Type II. Should manufactured
diving equipment be installed at any greater height than specified for the lower type pool, water
surface area and geometry shall be provided for the type pool which permits board installation at
that height.
4. Manufactured diving equipment shall have slip- resisting tread surfaces.
5. Manufactured diving equipment shall be permanently anchored to the pool deck. The
edge of the board at the tip end shall be level with the water surface. The tip end of the board
21
over the pool water surface may be higher than the butt end of the board. Refer to manufacturer's
recommendations.
•
(f). Swimming Pool Slides - The requirements of the U.S. Consumer Product Safety
Commission (CPSC) Standard for Swimming Pool Slides as published in the Code of Federal
Regulations 16CFR, Part 1207, shall be used for standards relating to swimming pool slides.
Installation and use instructions shall be provided with each unit by the manufacturer.
Circulation Systems
Sec. 306.(a) A circulation system consisting of pumps, piping, return inlets and suction
outlets, filters, and other necessary equipment shall be provided for complete circulation of water
through all parts of the pool.
1. The equipment shall be of adequate size to turn over the entire pool water capacity at
least once every twelve (12) hours. Water clarity shall be maintained.
2. Circulation system components which require replacement or servicing shall be
accessible for inspection, repair, or replacement, and shall be installed according to the
manufacturer's instructions.
3. Pool equipment shall be properly supported to prevent damage from misalignment,
settlement, etc. The equipment shall be mounted so as to minimize the potential for the
accumulation of debris and moisture, following manufacturer's instructions.
(b) The water velocity in the pool piping shall not exceed ten feet (10') per second for
discharge piping and eight feet (8') per second for suction piping, unless calculations are
provided to show that the greater flow is possible with the pump and piping provided.
(c) The circulation system piping and fittings shall be nontoxic, shall be considered to
be process piping, and shall be of material able to withstand operating pressures and operating
conditions.
1. Equipment shall be designed and fabricated to drain the pool water from the
equipment, by removal of drain plugs and manipulating valves, or by other methods. Refer to
manufacturer's recommendations for specific information on draining the system.
(d) A pressure or vacuum gauge or other means of indicating system condition shall be
provided in the circulation system in an easily readable location.
(e) The circulation system shall be capable of maintaining water clarity and water
chemistry requirements. Time clocks may be used to set the operating period. When time clock
are used, they shall also govern the operating time of appurtenant devices such as
chemical /disinfectant feeders, slurry feeders, heaters, etc., that are dependent upon circulation
pump flow.
• . Written op eration and maintenance instructions shall be provided for the circulation
(0. P p
system.
22
• Filters
Sec. 307.(a) Filters shall be designed so that after cleaning per manufacturer's
instructions the system can provide the water clarity noted in Section 306(e).
1. Filters shall be designed so that filtration surfaces can be inspected and serviced.
(b). On pressure -type filters, a means shall be provided to permit the release of internal
pressure.
1. Any filter incorporating an automatic internal air release as its principal means of air
release shall have lids which provide a slow and safe release of pressure as a part of its design.
2. Any separation tank used in conjunction with any filter tank shall have a manual
means of air release or a lid which provides a slow and safe release of pressure as it is opened as
a part of its design.
(c) Pressure filters and separation tanks shall have operation and maintenance
instructions permanently installed on the filter or separation tank and shall include a
precautionary statement warning not to start up the system after maintenance without first
opening the air release and proper reassembly of the filter and separation tank. The statement
• shall be visible and noticeable within the area of the air release.
Pumps and Motors
Sec. 308.(a) A pump and motor shall be provided for circulation of the pool water.
Performance of all pumps shall meet or exceed the conditions of flow required for filtering and
cleaning (if applicable) the filters against the total dynamic head developed by the complete
system.
(b) With the pressure filter systems a cleanable strainer or screen shall be provided
upstream of the circulation pump(s) to remove solids, debris, hair, lint, etc.
(c) Pump(s) and motor(s) shall be accessible for inspection and service.
(d) The design and construction of the pump(s) and component parts shall provide safe
operation that is not hazardous to the operator or maintenance personnel.
(e) Where a mechanical pump seal is provided, components of the seal shall be
corrosion- resisting and capable of operating under conditions normally encountered in pool
operation.
(f) All motors shall have as minimum a open drip -proof enclosure and be constructed
• electrically and mechanically to perfoi,u satisfactorily and safely under the conditions of load
environment normally encountered in swimming pool installations.
23
(g) Motor(s) shall be capable of operating the pump(s) under full load with a voltage
variation of plus or minus ten percent from the nameplate rating. If the maximum service factor
• of the motor is exceeded (at full voltage), the manufacturer shall indicate this on the pump curve.
(h) All motors shall have thermal or current overload protection, either built in or in line
starter, to provide locked rotor and running protection.
(i) Where the pump is below the waterline, valves shall be installed on permanently
connected suction and discharge lines, located in an accessible place outside the walls of the
pool, where they shall be readily and easily accessible for maintenance and removal of the pump.
Return Inlets and Suction Outlets
Sec. 309.(a) Return inlet(s) and suction outlet(s) shall be provided and arranged to
produce a uniform disinfectant residual throughout the entire pool. Where skimmers are used, the
return inlet(s) shall be located so as to help bring floating particles within range of the skimmers.
(b) The number of return inlet(s) shall be based on a minimum of one (1) return inlet per
six hundred (600) square feet of pool surface area, or fraction thereof. Return inlet fittings shall
be installed of sufficient pipe size or quantity to allow a full design turnover rate of the
circulation system in accordance with the manufacturer's recommendations for return inlets.
1. Return inlet(s) from the circulation system shall be designed so as not to constitute a
hazard to the bather.
(c) The pool shall not be operated if the suction outlet grate is missing broken, or
secured in such a way that it can be removed without the use of tools.
(d) If the suction outlet system, such as a filtration system, automatic cleaning system,
solar system etc., has a single suction outlet, or multiple suction outlets which can be isolated by
valves, each suction outlet shall conform to International Association of Plumbing and
Mechanical Officials Standard ANSI /ASME A112.19 8M -1987 to protect against bather
entrapment by either:
1. An approved antivortex cover.
2. A twelve inch by twelve inch (12" x 12 ") or larger grate.
3. Other approved means such as venting or VRS.
4. A minimum of two (2) suction outlets provided for each pump in the suction outlet
system, separated by a minimum of three feet (3') or located on two (2) different planes; i.e. one
(1) on the bottom and one (1). on the vertical wall, or two (2) separate vertical walls. These
suction outlets shall be plumbed such that water is drawn through them simultaneously through a
• common Iine to the pump.
24
Surface Skimmer Systems.
IP Sec. 310.(a) A surface skimming system shall be provided on all residential swimming
pools, and shall be designed and constructed to skim the pool surface when the water level is
maintained within the operational parameters of the system's rim or weir device.
(b) Skimming devices shall be designed and installed so as not to constitute a hazard to
the bather.
(c) Where automatic surface skimmers are used as the sole overflow system, at least one
(1) surface skimmer shall be provided for each eight hundred (800) square feet or fraction thereof
of the water surface area. Nominal recessed areas such as stairs, swimouts, spas, etc., shall not
be considered in the calculation. Where skimmers are used, they shall be located to maintain
effective skimming action over the entire surface of the pool.
Electrical Requirements.
Sec. 311. The requirements of the National Electrical Code (NEC), as published by the
National Fire Protection Association, amended and adopted by the jurisdiction, shall be followed.
Heaters
• Sec. 312.(a) Swimming pool heaters shall be tested by a nationally recognized testing
agency and comply with the appropriate current nationally recognized standards.
(b) The heater(s) shall be installed according to the manufacturer's recommendations.
Heaters shall not be installed in narrow side yards or those areas providing emergency escape
routes. Heaters shall be installed no closer to property lines than 4 feet.
1. The heater shall be installed on a concrete (or equivalent) base unless it is specifically
designed for installation on a combustible surface.
2. Adequate clearances shall be maintained on all sides and over the top of the heater as
shown in the manufacturer's instructions.
3. The heater shall have adequate ventilation in order to assure proper combustion.
4. When installing a heater indoors, the heater shall be installed in accordance with the
Mechanical Code as amended and adopted by the Administrative Authority, and the
manufacturer's recommendation for properly sized air openings to the enclosure.
A. Draft or venting devices shall be installed according to the manufacturer's
recommendations and shall not be modified.
• B. A heater using propane gas shall not be installed in a pit or basement. Whenever
installing a heater using propane gas, the manufacturer's instructions shall be followed.
25
(d). Heater Piping System:
• 1. The heater gas supply piping shall comply with the Plumbing Code as amended and
approved by the administrative authority. When installing a gas -fired heater, the gas line shall be
run from the gas meter as directly as practical.
2. The heater circulation system shall comply with the manufacturer's recommendations.
3. The water piping system shall be installed according to the manufacturer's
recommendations.
A. When installing a heater and a filter system, adequate provisions shall be made so
that the heater does not cause excessive pressure drop to the filter system. Refer to
manufacturer's requirements and /or recommendations for installation of bypass valves.
Water Supply.
Sec. 313.(a) No direct mechanical connection shall be made between the potable water
supply and the swimming pool, chlorinating equipment, or the system of piping for the pool,
unless it is protected against backflow and backsiphonage in a manner approved by the building
official or through an air gap, or other equivalent means approved by the building official.
(b) An over- the -rim spout, if used, shall be located under a diving board, adjacent to a
• ladder, or otherwise properly shielded so as not to create a hazard. Its open end shall have no
sharp edges and shall not protrude more than two inches (2 ") beyond the edge of the pool.
Waste Water Disposal.
•
Sec. 314. Backwash water shall be disposed of and contained on site. All discharges of
backwash water shall comply with applicable Town ordinances and Arizona Department of
Environmental Quality (ADEQ) Engineering bulletins. Backwash water shall be contained in
such a manner that the soil conditions will allow the water to percolate into the soil without
migrating to adjacent properties, affecting the pool shell or decks or the foundation of the home
or other structures. Sites where adjacent properties are lower must assess placement of backwash
water area to ensure subsurface water will not affect those properties.
Pools may be drained to the street when the the water being discharged is chlorine free, at a Ph
of 7 plus or minus.5, and no known biological hazards are present. Any stain or residue resulting
from water disposal shall be removed by rinsing with potable water or other approved means.
Water may be discharged to a wash when the above criteria are met and with measures to prevent
erosion of the wash bank or channel.
Disinfectant Equipment, Oxidation Equipment, and Chemical Feeders
Sec. 315.(a) Disinfectant equipment, oxidation equipment, and chemical feeders,
• hereafter referred to jointly as "equipment" shall comply with nationally recognized standards.
The equipment and the chemical feeders shall be capable of precisely introducing a sufficient
quantity of a disinfecting agent.
26
(b) Chemical Feeders. Good engineering practices and manufacturer's instructions shall
• be used in installing chemical feeders.
(c) Low Ozone Output Generating Equipment. The installation of ozone generating
equipment shall be limited to low ozone output generating equipment. The installation and use
of ozone generating equipment shall conform to the following:
1. Installation of ozone generating equipment shall allow for indications of operation or
malfunction to be easily observed. The equipment shall be installed in a manner such that a
malfunction will not endanger operators or pool users.
2. Ozone generating equipment shall be used in conjunction with other chemical
treatments. Normal maintenance and monitoring of water chemistry shall be followed.
3. Good engineering practices and manufacturer's recommendations shall be used to
determine where and how ozone shall be injected.
Safety, Path of Travel
Sec. 316. A residential pool shall be provided with a suitable handhold around its
perimeter in areas where depths exceed three feet six inches (3'6 "). Handholds shall be provided
• no further apart than four feet (4') and shall consist of any one (1) or a combination of items
• listed in the following:
1. Coping, ledge, or deck along the immediate top edge of the pool which provides a
slip- resisting surface of at least four inches (4 ") minimum horizontal width and located at or not
more than twelve inches (12 ") above the waterline; or
2. Ladders, stairs, or seat ledges; or
3. A secured rope or railing placed at or not more than twelve inches (12 ") above the
waterline.
(a) Rope anchor devices shall be installed at a minimum of one foot (1') and a maximum
of two feet (2') on the shallow end side of a point of change in floor slope. In pools where the
slope change occurs in water depths less than four feet six inches (4'6 "), a rope, supported by
buoys, shall be installed.
PATH OF TRAVEL is any sidewalk, stair or path leading from the home to the pool
or spa. Changes in elevation, stairs, handrails and guards shall conform to the Residential
Building Code. Paths adjacent on elevated areas must be provided with guards when within two
feet of the drop or slope exceeding 1 in 2. Stairs or steps leading to the pool area or leading to
raised areas around pools and spas shall be provided with a handrail when there is more than one
riser unless the tread is more than 24 inches between risers. Stairs and handrails must meet the
provisions of the Residential Building Code. Hand rails in this section are in addition to those
• required for exiting the pool. Walking surfaces shall be non skid.
27
Barriers and Enclosures/Residential Pools
• Sec. 317. Outdoor residential swimming pools shall be provided with an enclosure and
barrier meeting the following requirements:
1. Barriers and enclosures shall be a minimum of 5 feet in height above finished grade
or other walking surface, measured on the side opposite the swimming pool.
2. No opening in a barrier or enclosure shall allow passage of a sphere larger than 4
inches.
3. The vertical distance between the bottom of a barrier or enclosure and the finished
grade or walking surface shall not exceed 4 inches.
4. The barrier or enclosure shall be constructed so as not to provide opportunity for
climbing on the side opposite the pool and the interior when common walls are present. Where a
protrusion, indention, or top surface is at a continuous angle of inclination towards the barrier or
enclosure equal to 45 degrees above the horizontal and otherwise does not provide a handhold or
foothold, it shall be deemed not to provide an opportunity for climbing, for purposes of this code.
Openings in chain -link fences, exceeding 1 inch, shall be slatted.
A. A non- climable protion of the enclosure or barrier of 48 continious inches shall be
provided as a part of the 5 foot height. The 48" may be provided anywhere in the 60 height.
• B. Wrought iron or wood barriers or enclosures shall be constructed with at least 48
inches between the top surface of the horizontal members.
C. Any space which falls within the area within a 48 inch radius, centered at the top of
the barrier /enclosure, must be maintained free of objects that provide a means to climb.
D. Any pool equipment or pool related structures shall be installed so that the 48 inch
radius will be maintained for any common wall that separates properties.
5. Gates placed in an enclosure or barrier shall comply with the above. All gates shall
be not less than 60" in height and be self - closing and self - latching. Where the latch is less than
54" above the walking surface or 50" above a foothold, the latch shall be installed on the pool
side of the gate not less than 42" above the walking surface, and the gate and barrier shall have
no opening greater than 1 inch within 18 inches of the latch. Gates in a barrier shall be installed
to swing in a direction opposite the pool.
6. The Building Official may grant an exception to the requirements of enclosing a
swimming pool when he finds that there is a barrier or enclosure existing on the premises by
reason of Iandscaping, or topography suitable to prevent access to the pool area.
7. A pool safety cover may be used for a barrier if all the following conditions are met:
• a. When in the closed osition, a sphere 4 inches in diameter is prevented from reaching
p p p
the water surface.
28
b. The cover is designed to support a static load of 485 pounds.
•
c. The electric motor switch shall be key- operated or locked and there shall be an
additional power disconnect located not less than 54" above the finished grade, deck or other
walking surfaces.
8. Any wall of a dwelling or other building may be used as part of an enclosure or
barrier if all the following conditions are met:
a. Windows leading to the swimming pool area shall be provided with a latching device
located not less than 54 inches above the floor. Bedroom egress windows shall not enter into a
pool area and shall not be modified to comply with this code.
b. Hinged doors leading to the swimming pool area shall be self - closing /self - hatching
with the latch located not less than 54 inches above the finished grade or other walking surface,
measured on the side opposite the swimming pool. Hinged screen doors when used as a barrier
shall be self - closing /self - latching and protected with a substantial grill on the pool side to a
minimum height of 48" above the walking surface.
c. A sliding door leading to the swimming pool area shall be provided with a
self- closing and self - latching device on the door or the screen not less than 54 inches above the
finished grade or other walking surface, measured on the side opposite the swimming pool.
• Screen doors shall comply with the closing requirements and be protected with a substantial grill
on the pool side to a minimum height of 48" above the walking surface.
9. Alarms may be used on doors being used as part of a barrier in lieu of the self-
closing door when the following conditions are met:
a. doors may be equipped with an alarm which produces an audible warning when the
door and its screen, if present, are opened.
b. the alarm shall sound continuously immediately after the door is opened, and be
capable of being heard through the house during normal household activities. The alarm
shall not automatically reset after operation but shall be manually reset at the touch pad
or switch.
c. the sound shall be distinctively different from the sounds made by any smoke
detector or other alarm installed in the house.
d. the alarm may be equipped with a manual means, such as a touch -pad or switch, to
temporarily deactivate the alarm for not more than 15 seconds to accommodate a single
opening of the door. The deactivation means shall be located at least 54 inches above
the floor or installed in a panelboard or control panel which is inaccessible to children.
29
e. in new construction, alarms shall receive their primary power from the building
wiring and shall be equipped with a battery backup. Alarms may be solely battery
• operated when installed in existing buildings.
•
30
Chapter 4
PERMANENTLY INSTALLED RESIDENTIAL SPAS
Scope
Sec. 401.(a) This chapter is intended to cover spas, hydrotherapy units of irregular or
geometric shell design, which are permanent residential spas intended to be used for bathing.
1. This chapter is intended to cover certain aspects of the design, equipment, operation,
installation, new construction and rehabilitation of spas. This chapter may be met
notwithstanding certain variations in equipment, materials, and design.
(b) This chapter is not meant to cover public spas, public /commercial spas, portable
spas, and other spas such as those operated for medical treatment, physical therapy, or other
special purposes.
(c) Other chapters are referenced in this chapter for items not covered.
Materials of Construction
• Sec. 402.(a) The materials of components and accessories used in permanently installed
residential spas shall comply with the Standards in Appendix A, Table 1. These materials shall
be capable of fulfilling the design, installation and intended use requirements in this standard.
(b) The materials for components and accessories to be used in and around spas shall be
such that the operational strength of the entire assembly shall not be adversely affected by
exposure to rain, snow, ice, sunlight, local normal temperature extremes, local normal wind
variations, expected local air pollution products, and the mechanical, electrical, and chemical
environment in and around spas. "Local normal" temperature extremes and wind variations are
defined as the average annual recorded limits for the past ten (10) years at any spa installation
point in the U.S.A., where such statistical information exists in the latest "Statistical Abstract of
the United States ", U.S. Department of Commerce, Bureau of the Census, Section 7, Geography
and Environment.
(c) The selection of all materials for components and accessories to be used in and
around spas shall be such that all parts with external surfaces and edges that may come in contact
with the user are assembled, arranged, and /or finished (deburred, polished, etc.) so that they will
not constitute a cutting, pinching, puncturing, or abrasion hazard under casual contact and
intended use.
(d) The selection of materials used in components and accessories to be used in and
around spas shall be such that the assembled and installed product shall not be harmful to man or
• to the environment under intended used, and reasonably foreseeable abuse or disposal.
31
•
(e) The selection of materials for components and accessories to be used in and around
spas shall be such that the assembled and installed product shall be chemically compatible with
the materials and environment contacted underintended use and reasonably foreseeable abuse.
Structural Design
Sec. 403.(a) Prior to construction, rehabilitation, or alteration of a permanently installed
residential spa, plans and specifications shall be submitted to the administrative authority for
review, approval, and issuance of a permit to construct, rehabilitate or alter, as may be required.
(b) The structural design and materials used shall be in accordance with generally
accepted good structural engineering practices.
(c) Sand or earth shall not be permitted as an interior finish in a residential spa.
(d) In climates subject to freezing temperatures, a means shall be provided to protect the
spa shell and appurtenances, piping, filter system, pump and motor, and other components from
damage due to freezing.
(e) The surfaces within the spa intended to provide footing for users shall be designed to
provide a slip- resisting surface. The roughness or irregularity of such surfaces shall not cause
injury or discomfort during normal use.
• (f) The colors, patterns, or finishes of the spa interior shall not be such as to obscure the
existence or presence of objects or surfaces within the spa.
(g) Roofs or canopies over spas shall be constructed so that water run -off does not drain
into the spa.
Dimensional Design
Sec. 404.(a) No limits are specified for the shape of spas except that consideration shall
be given to shape from the standpoint of safety and circulation of the spa water.
1. There shall be no protrusions, extensions, means of entanglement, or other
obstructions in the bathing area which can cause the entrapment or injury of the user.
2. The designed waterline shall have a maximum construction tolerance at the time of
completion of the work of a plus or minus one -fourth inch for spas with adjustable weir surface
skimming systems, and a plus or minus one - eighth inch for spas with nonadjustable surface
skimming system.
3. There shall be a construction tolerance on all other dimensional designs. Overall
dimensions may vary plus or minus two inches, unless otherwise specified.
ID (b) The maximum water depth shall be four feet (4') measured from the waterline.
32
(c) Multi -level seating may be provided, but the maximum water depth of any seat or
• sitting bench shall be thirty inches (30 ") measured from the waterline.
(d) The spa shall be provided with a suitable handhold around its perimeter in areas
where water depths exceed three feet six inches (3'6 "). Perimeters rims of spas may serve as a
suitable handhold. Handholds shall be provided no further apart than four feet (4') and may
consist of any one or a combination of the options listed in the following:
1. Coping, ledges, radiused flanges, or decks along the immediate top edge of the spa
shall provide a suitable slip- resisting handhold located not more than twelve inches (12 ") above
the waterline; or
2. A secured rope or railing at or not more than twelve inches (12 ") above the waterline.
(e) The slope of the floor shall not exceed one foot in twelve feet (1:12) vertical to
horizontal.
(f) Steps, seats, ladders or recessed treads shall be provided for entry and exit where
water depths are greater than twenty -four inches (24 ").
(g) The design and construction of ladders, where used, shall conform to the following:
1. Spa ladder(s) shall be made entirely of corrosion- resisting materials.
• 2. Ladder treads shall have slip- resisting surfaces.
3. Ladder(s) shall provide two (2) handholds/handrails.
4. The outside diameter of a ladder rail shall be between one inch (1") and two and one
quarter inches (2.25 ").
5. Below the water level, there shall be a clearance of not more than six inches (6 ") nor
less than three inches (3 ") between any ladder tread edge, measured from the spa wall side of the
tread, and the spa wall.
6. The clear distance between ladder handrails shall be a minimum of seventeen inches
(17 ") and a maximum of twenty -four inches (24 ").
(h) The design and construction of recessed treads, where provided, shall conform to the
following:
1. Recessed treads at the centerline shall have a uniform vertical spacing of twelve
inches (12 ") maximum and seven inches (7 ") minimum.
• 2. The vertical distance between the spa coping edge, deck, or step surface and the
uppermost recessed tread shall not exceed twelve inches (12 ").
33
3. Recessed treads shall have a minimum depth of five inches (5 ") and a minimum
width of twelve inches (12 ").
•
4. Recessed treads shall drain into the spa to prevent the accumulation of dirt, and shall
be slip- resisting.
5. Each set of recessed treads shall be provided with a set of handrails/handholds to
serve all treads and risers.
Decks
Sec. 405.(a) These requirements shall apply to new construction areas immediately
around the spa.
1. Deck(s) shall be designed and installed in accordance with the engineering practices
required in the area of installation. Concrete decks must comply with the appropriate standards
in Table 1. Decks elevated more than 30 inches above adjacent grade shall have guards designed
in accordance with the Building code.
(b) Decks, ramps, coping and similar step surfaces shall be slip- resisting and easily
cleanable.
. (c) Special features in or on decks such as markers, brand insignias, or similar items
shall conform to this article.
(d) Risers for steps for a deck shall be uniform and have a maximum height of eight
(8"). The minimum tread depth shall be nine inches (9 ").
(e) The subgrade for decks shall be prepared and /or installed in accordance with
engineering and construction practices required in the area of installation to adequately support
the decks.
(f) The minimum slope of deck(s) shall be one - eighth inch per one foot (1/8 ":1') for
textured, hand - finished concrete decks; one -fourth inch per one foot ( ":1) for exposed aggregate
concrete decks; and one -half per one foot ( ":1') for resilient artificial deck surfaces, unless an
alternate drainage method is provided.
1. The maximum slope for all decks other than wood decks shall be one inch per foot
(1":l ') except for ramps. The maximum slope for wood decks shall be one - eighth inch per foot
(1/8":1'). Gaps shall be based on good engineering practices with respect to the type of wood
used.
(g) The maximum voids between adjoining concrete slabs and /or between concrete
slabs and expansion joint material shall be one - sixteenth inch (1/16 ") of horizontal clearance
• with a maximum difference in vertical elevation of one - fourth (1/4").
1. Construction joints where concrete deck(s) meet the spa coping shall be watertight
and shall not allow water to pass to the ground beneath.
34
• 2. The areas where the deck(s) join the spa coping shall be designed and installed so as
to protect the coping and its mortar bed from damage as a result of reasonable movement of
adjoining deck(s).
3. Joints in deck(s) shall be provided to minimize the potential for cracks due to a
change in elevations, separation of surfaces or movement of the slab.
4. The areas where deck(s) join concrete work shall be protected by expansion joints if
necessary, to protect the spa adequately from the pressures of relative movements.
(i) Decks shall be edged, have a radius, or be otherwise relieved to eliminate sharp
corners.
(j) Site drainage shall be provided so as to direct all deck drainage as well as general site
and roof drainage away from the spa.
(k) If used, an open pit or leaching design for backwash sump purposes shall be located
so that it falls completely below adjacent deck(s) and fully outside a line projected 45 degrees
downward and away from such deck(s), or shall be designed to accommodate local soil
conditions and the volume of backwash.
(1). Circulation system piping, other than that integrally included in the manufacture of
• the spa, shall be subject to an induced static hydraulic pressure test (sealed system) at twenty -five
(25) pounds per square inch (psi) for thirty (30) minutes. This test shall be performed before the
deck is poured, and the pressure shall be maintained through the deck pour.
1. For premolded spas, a normal operational running test may be provided in lieu of a
pressure test.
2. Valves installed in or under any deck(s) shall be provided with a minimum ten inches
(10 ") diameter access cover and valve pit to facilitate servicing.
Circulation Systems
Sec. 406.(a) A circulation system consisting of pumps, piping, return inlets and suction
outlets, filters, and other necessary equipment shall be provided for complete circulation of water
through all parts of the spa.
1. The circulation system equipment shall be designed to turn over the entire spa water
capacity at a minimum of once every hour.
2. Circulation system components which require replacement or servicing shall be
accessible for inspection, repair, or replacement and shall be installed according to the
manufacturer's instructions.
•
35
3. Where equipment sizing falls within the scope of National Sanitation Foundation
• (NSF) testing, materials, and equipment used in the circulation system shall comply with the
Standards in Table 1, Appendix A.
4. Spa equipment shall be properly supported to prevent damage from misalignment,
settlement, and operational movement, etc. The equipment shall be mounted so as to minimize
the potential for the accumulation of debris and moisture, following manufacturer's instructions.
(b) The water velocity in the piping shall not exceed ten feet (10') per second for
discharge piping, except for copper pipe where the velocity for piping shall not exceed eight feet
(8') per second, and six feet (6') per second for suction piping, unless summary calculations are
provided to show that the greater flow is possible with the pump and piping provided.
1. The pump shall be sized to deliver the required flow rate against the total system head
involved.
(c) The circulation system piping and fittings shall be of material able to withstand
operating pressures and operating conditions.
1. Equipment shall be designed and fabricated to drain the spa water from the
equipment, by removal of drain plugs and manipulating valves, or by other methods. Refer to
manufacturer's recommendations for specific information on draining the system.
d A pressure gauge (located downstream from the pump on a pressure system), or stem
() e p g g� p p p Y }
vacuum gauge (located before the pump on the vacuum system), or other means of indicating
system condition shall be provided in the circulation system in an easily readable location.
(e) The circulation system shall be capable of maintaining water clarity. Time clocks
may be used to set the operating period. When time clocks are used, they shall also govern the
operating time of appurtenant devices such as chemical disinfectant feeders, heaters, etc. that are
dependent upon circulation pump flow.
(f) Written operation and maintenance instructions shall be provided for the circulation
system.
Filters
Sec. 407.(a) Filters shall be designed so that after cleaning per manufacturer's
instructions, the system can provide the minimum turnover noted in Sec. 405.(a).1.
1. Filters shall be designed so that filtration surfaces can be inspected and serviced.
(b) On pressure -type filters, a means shall be provided to permit release of internal
pressure.
36
1. Any filter incorporating an automatic internal air release as its principal means of air
• release shall have lids which provide a slow and safe release of pressure as a part of its design.
2. Any separation tank used in conjunction with any filter tank shall have a manual
means of air release or a lid which provides a slow and safe release of pressure as it is opened as
a part of its design.
(c) Pressure filters and separation tanks shall have operation and maintenance
instructions permanently installed on the filter or separation tank and shall include a
precautionary warning statement not to start the system after maintenance without first opening
the air release and proper reassembly of the filter and separation tank. The statement shall be
visible and noticeable within the area of the air release.
(d) Piping furnished with the filter shall be of suitable material capable of withstanding
one and one -half (1 ) times the working pressure. The suction piping shall not collapse when
there is a complete shutoff of flow on the suction side of the pump.
Pumps and Motors
Sec. 408.(a) With all pressure filter systems, a cleanable strainer or screen shall be
provided upstream of the circulation pump(s) to remove solids, debris, hair, lint, etc.
ill (b) The design and construction of the pump and component parts shall provide safe
operation that is not hazardous to the operator or maintenance personnel.
(c) Where a mechanical pump seal is provided, components of the seal shall be
corrosion - resisting and capable of operating under conditions normally encountered in spa
operation.
(d) All motors shall have as a minimum an open, drip -proof enclosure (as defined by the
latest National Electrical Manufacturers Association [NEMA] Standard MGI- .1978) and be
constructed electrically and mechanically to perform satisfactorily and safely under the
conditions of load and environment normally encountered in spa installations.
(e) A pump and motor shall be provided for circulation of the spa water. Performance of
all pumps shall meet or exceed the conditions of flow required for filtering and cleaning (if
applicable) the filters against the total dynamic head developed by the complete system.
(f) All motors shall have thermal or current overload protection, either built in or in the
line starter, to provide lock rotor and running protection.
(g) Where the pump is below the waterline, valves shall be installed on suction and
discharge lines. Valves shall be readily accessible for maintenance.
• Return Inlets and Suction Outlets
37
Sec. 409.(a) Return inlet(s) and suction outlet(s) shall be provided and arranged to
• produce circulation throughout the spa.
(b) If the suction outlet system, such as a filtration system, automatic cleaning system,
solar system etc., has a single suction outlet, or multiple suction outlets which can be isolated by
valves, each suction outlet shall conform to American National Standards Institute (ANSI)
ASME A112.19 8M -1987 to protect against bather entrapment by either:
1. An approved safety cover.
2. A twelve inch by twelve inch (12" x 12 ") or larger grate.
3. Other approved means.
(c) A minimum of two (2) suction outlets shall be provided for each pump in the suction
outlet system, separated by a minimum of three feet (3') or located on two (2) different planes;
i.e. one (1) on the bottom and one (1) on the vertical wall, or two (2) separate vertical walls.
These suction outlets shall be plumbed such that water is drawn through them simultaneously
through a common line to the pump.
(d) Where provided, the vacuum cleaner fitting(s) with safety covers, shall be located in
• an accessible position(s) at least three inches (3 ") and no greater than eighteen inches (18 ") below
the minimum operating water level or as an attachment to the skimmer(s). Wall fitting and safety
covers shall be approved by a nationally recognized testing agency.
Surface Skimmer Systems
Sec. 410.(a) A surface skimming system shall be provided on all residential spas, and
shall be designed and constructed to skim the spa surface when the water level is maintained
within the operational parameters of the system's rim or weir device.
(b) Skimming devices shall be designed and installed so as not to constitute a hazard to
the user.
(c) Where automatic surface skimmers are used as the sole overflow system, one (1)
surface skimmer shall be provided for each one hundred fifty (150) square feet, or fraction
thereof, of water surface area. Nominal recessed areas such as stairs shall not be considered in
the calculation.
(d) Where perimeter surface skimming systems are used, they shall be connected to the
circulation system with a system surge capacity of not less than one (1) gallon for each square
foot of spa surface.
• (e) The hydraulic capacity of the overflow system shall be capable of handling one
hundred percent (100 %) of the circulation flow.
38
Electrical Requirements
Sec. 411. The requirements of the National Electrical Code (NEC), as published by the
National Fire Protection Association, amended and adopted by the jurisdiction, shall be followed.
Air Induction System
Sec. 412.(a) Any air induction system shall prevent water back -up that could cause
electrical shock hazards.
(b) Air intake sources shall not induce water, dirt, or contaminants into the spa.
(c) Integral air passages shall be pressure tested at time of manufacture to provide
structural integrity for a valve of one and one -half (1) times the intended working pressure.
(d) Air induction systems shall be installed in accordance with manufacturer's
instructions.
•
Heaters
Sec. 413.(a) Spa heaters shall be tested by a nationally recognized testing agency and
comply with the appropriate current nationally recognized standards.
(b) The heater(s) shall be installed according to the manufacturer's recommendations.
1. The heater shall be installed on a concrete (or equivalent) base unless it is specifically
designed for installation on a combustible surface.
2. Adequate clearances shall be maintained on all sides and over the top of the heater, as
shown in the manufacturer's instructions for proper clearances.
3. The heater shall have adequate ventilation in order to assure proper combustion.
4. When installing a heater indoors, the heater shall be installed in accordance with the
Mechanical Code as amended and adopted by the Administrative. Authority, and the
manufacturer's recommendation for properly sized air openings to the enclosure.
A. Draft or venting devices shall be installed according to the manufacturer's
recommendations and shall not be modified.
B. A heater using propane gas shall not be installed in a pit or basement. Whenever
installing a heater using propane gas, the manufacturer's ventilation instructions shall be
followed.
(c) Heater Piping System:
111
39
1. The heater gas supply piping shall comply with the Plumbing Code as amended and
• approved by the administrative authority. When installing a gas -fired heater, the gas line shall be
run from the gas meter as directly as practical.
2. The heater circulation system shall comply with the manufacturer's recommendations.
3. The water piping system shall be installed according to the manufacturer's
recommendations.
A. When installing a heater and a filter system, adequate provisions shall be made so that
the heater does not cause excessive pressure drop to the filter system. Refer to manufacturer's
requirements and /or recommendations for installation of bypass valves.
Water Supply.
Sec. 414. (a) No direct mechanical connection shall be made between the potable water
supply and the spa, chlorinating equipment, or the system of piping for the spa, unless it is
protected against backflow and backsiphonage in a manner approved by the building official or
through an air gap, or other equivalent means approved by the building official.
(h) An over- the -rim spout, if used, shall be properly shielded so as not to create a hazard.
Its open end shall have no sharp edges and shall not protrude more than two inches (2 ") beyond
the edge of the spa.
Waste Water Disposal.
Sec. 415. Backwash water shall be disposed of and contained on site. All discharges of
backwash water shall comply with applicable Town ordinances and Arizona Department of
Environmental Quality (ADEQ) Engineering bulletins. Spas may be drained to the street when
the the water being discharged is chlorine free, at a Ph of 7 plus or minus.5, and no known
biological hazards are present. Any stain or residue resulting from water disposal shall be
removed by rinsing with potable water or other approved means. Water may be discharged to a
wash when the above criteria are met and with measures to prevent erosion of the wash bank or
channel.
Disinfectant Equipment, Oxidation Equipment, and Chemical Feeders
Sec. 416.(a) Disinfectant equipment, oxidation equipment, and chemical feeders,
hereafter referred to jointly as "equipment" shall comply with nationally recognized standards.
The equipment and the chemical feeders shall be capable of precisely introducing a sufficient
quantity of an approved disinfecting agent.
(b) Chemical Feeders. Good engineering practices and manufacturer's instructions shall
be used in installing chemical feeders.
(c) Low Ozone Output Generating Equipment. The installation of ozone generating
• equipment shall be limited to low ozone output generating equipment. The installation and use
of ozone generating equipment shall conform to the following:
40
1. Installation of ozone generating equipment shall allow for indications of operation or
malfunction to be easily observed. The equipment shall be installed in a manner such that a
malfunction will not endanger operators or spa users.
2. Ozone generating equipment shall be used in conjunction with other chemical
treatments. Normal maintenance and monitoring of water chemistry shall be followed.
3. Good engineering practices and manufacturer's recommendations shall be used to
determine where and how ozone shall be injected.
Barriers and Enclosures
Sec. 417.(a) Outdoor residential spas shall be provided with an enclosure and barrier
meeting the following the same requirements found in Section 317 of this code, or
1. A securable spa cover may be used for a barrier and enclosure if all the following
conditions are met:
a. When in the closed position, a sphere 4 inches in diameter is prevented from reaching
the water surface.
b. The cover is designed to support a static load of 100 pounds.
c. The spa width or diameter does not exceed eight feet (8').
2. A spa safety cover may be used for a barrier or enclosure if all the following
conditions are met:
a. When in the closed position, a sphere 4 inches in diameter is prevented from reaching
the water surface.
b. The cover is designed to support a static load of 100 pounds.
c. The electric motor switch shall be key- operated or locked and there shall be an
additional power disconnect located not less than 54" above the finished grade, deck or other
walking surfaces.
•
41
Chapter 5
• RESIDENTIAL PORTABLE SPAS
Scope
Sec. 501.(a) This chapter is intended to cover portable residential spas, and hydrotherapy
units of irregular or geometric shell design, which are intended to be used for bathing.
1. This chapter is intended to cover certain aspects of the design, equipment, operation,
installation, new construction and rehabilitation of spas. This standard may be met
notwithstanding certain variations in equipment, materials and design.
(b) This chapter is not meant to cover public /commercial spas, permanently installed
residential spas, and other spas such as those operated for medical treatment, physical therapy, or
other special purposes.
(c) Other standards may be referenced in this chapter for items not covered.
Materials of Manufacture
Sec. 502.(a) The materials of components and accessories used in portable spas shall
comply with the Standards in Table 1. These materials shall be capable of fulfilling the design,
installation and intended use requirements in this standard.
(b) All material surfaces that come in contact with the user shall be finished, so that they
do not constitute a cutting, pinching, puncturing, or abrasion hazard under casual contact and
intended use.
1. Product shall be maintained in accordance with manufacturer's instructions.
(c) Assemblies of different materials shall be chemically and mechanically compatible
for their intended use and environment.
Structural Design
Sec. 503.(a) The structural design and materials used shall be in accordance with
generally accepted structural engineering practices.
(b) A means shall be provided to protect the spa shell and appurtenances, piping, filter
system, pump and motor, and other components from damage due to freezing.
(c) The surfaces within the spa intended to provide footing for users shall be designed to
provide a slip- resisting surface.
• (d) Spa equipment shall be properly supported to prevent damage from misalignment,
settling, etc. The equipment shall be mounted so as to minimize the potential for the
accumulation of debris and moisture.
42
•
• Dimensional Design
Sec. 504.(a) The shape of spas shall not be limited except from the standpoint of safety
and /or circulation of the spa water.
1. There shall be no protrusions, extensions, means of entanglement, or other
obstructions in the bathing area which can cause the entrapment or injury of the user.
2. The maximum water depth shall be four feet (4') measured from the waterline.
Exceptions may be made for spas designed for a special purpose.
3. Multi -level seating may be provided, but the maximum water depth of any seat or
sitting bench shall be thirty inches (30 ") measured from the waterline.
(b) The slope of the floor shall not exceed one foot in twelve feet (1:12) vertical to
horizontal.
(c) Steps, seats, ladders or recessed treads shall be provided for entry and exit where
water depths are greater than twenty -four inches (24 ").
(d) The design and construction of spa steps, recessed steps, and seat benches, where
• used, shall conform to sections 403.(g).1. through 5.
1. Step treads shall have a minimum unobstructed horizontal depth of ten inches (10 ") for
a minimum continuous width of twelve inches (12 ").
2. Riser heights shall not be less than seven inches (7 ") nor greater than twelve inches
(12 "). Where the bottom tread serves as a bench or seat, the bottom riser may be a maximum of
fourteen inches (14 ") above the spa floor.
3. Handrails, if used, shall be installed in such a way that they shall be removable only
with tools.
4. Portable spas are intended for entry and exit from the surface supporting the spa. If the
spa rim of a portable spa is intended for use as a step, a handrail shall be provided.
Circulation Systems
Sec. 505.(a) A circulation system consisting of piping, inlets, suction outlets, and
circulation equipment (pump, heater, filter and connecting piping) shall be provided for complete
circulation of water through all parts of the spa.
1. The circulation system equipment shall be designed to turn over the entire spa water
capacity at a minimum of once every hour.
• 2. Circulation system components which require replacement or servicing shall be
accessible for inspection, repair, or replacement and shall be installed according to the
manufacturer's instructions.
43
(b) The circulation system shall be designed and fabricated to provide drainage from the
spa and circulation equipment. Refer to manufacturer's recommendations for specific
information on draining.
(c) Time clocks may be used to set the operating period. When time clocks are used,
they shall also govern the operating time of appurtenant devices such as chemical /disinfectant
feeders, etc. that are dependent upon circulation pump flow.
Heaters
Sec. 506.(a) Spa heaters shall be tested and approved by a nationally recognized testing
agency and comply with the appropriate current nationally recognized standards such as the
American National Standards Institute (ANSI -Z- 21.56) or Underwriters Laboratories (UL1261).
(b) The heater(s) shall be installed according to the manufacturer's recommendations.
1. The heater shall be installed on a concrete (or equivalent) base unless it is specifically
designed for installation on a combustible surface.
2. When installing the heater, adequate clearances shall be maintained on all sides and
• over the top of the unit. Consult manufacturer's instructions for proper clearances.
3. The heater shall have adequate ventilation in order to assure proper combustion.
4. When installing a heater indoors, proper openings to the room are a necessity. The
heater shall be installed in accordance with (state or local authority) codes and the manufacturer's
recommendation for properly sized air openings to the enclosure.
A. All fossil fuel heaters are supplied with some type of venting system, either for indoor
or outdoor installation. These draft or venting devices shall be installed according to the
manufacturer's recommendations and shall not be modified.
B. When installing a heater that will be using propane gas, special precautions shall be
noted. Propane gas is heavier than air and shall not be installed in a pit or in an enclosed area.
Whenever installing a heater with propane gas, the manufacturer's ventilation recommendations
shall be followed.
(c) Heater Piping System:
1. The heater gas supply piping shall comply with the Uniform Plumbing Code as
amended and approved by the administrative authority. When installing a gas -fired heater, the
gas line shall be run from the gas meter as directly as practical.
• 2. The heater circulation system shall comply with the manufacturer's recommendations.
44
3. The water piping system shall be installed according to the manufacturer's
• recommendations.
A. When installing a heater and a filter system, adequate provisions shall be made so that
the heater does not cause excessive pressure drop to the filter system. Refer to manufacturer's
requirements and /or recommendations for installation of bypass valves.
(d) The maximum temperature of the spa shall be 104 degrees. A thermostatic control
for the water temperature shall be required.
Water Supply.
Sec. 507. No direct mechanical connection shall be made between the potable water
supply and the spa, chlorinating equipment, or the system of piping for the spa, unless it is
protected against backflow and backsiphonage in a manner approved by the building official or
through an air gap, or other equivalent means approved by the building official.
Waste Water Disposal.
Sec. 508.. Backwash water shall be disposed of and contained on site. All discharges
of backwash water shall comply with applicable Town ordinances and Arizona Department of
Environmental Quality (ADEQ) Engineering bulletins. Spas may be drained to the street when
the the water being discharged is chlorine free, at a Ph of 7 plus or minus.5, and no known
biological hazards are present. Any stain or srsudue resulting from water disposal shall be
removed by rinsing with potable water or other approved means. Water may be discharged to a
wash when the above criteria are met and with measures to prevent erosion of the wash bank or
channel.
Disinfectant Equipment, Oxidation Equipment, and Chemical Feeders
Sec. 509.(a) Disinfectant equipment, oxidation equipment, and chemical feeders,
hereafter referred to jointly as "equipment" shall comply with nationally recognized standards.
The equipment and the chemical feeders shall be capable of precisely introducing a sufficient
quantity of an approved disinfecting agent.
(b) Chemical Feeders. Good engineering practices and manufacturer's instructions shall
be used in installing chemical feeders.
(c) Low Ozone Output Generating Equipment. The installation of ozone generating
equipment shall be limited to low ozone output generating equipment. The installation and use
of ozone generating equipment shall conform to the following:
1. Installation of ozone generating equipment shall allow for indications of operation or
malfunction to be easily observed. The equipment shall be installed in a manner such that a
• malfunction will not endanger operators or spa users.
45
2. Ozone generating equipment shall be used in conjunction with other chemical
treatments. Normal maintenance and monitoring of water chemistry shall be followed.
3. Good engineering practices and manufacturer's recommendations shall be used to
determine where and how ozone shall be injected.
Barriers and Enclosures
Sec. 510.(a) Residential portable spas shall be provided with an enclosure and barrier
meeting the following requirements:
1. Barriers and enclosures shall be a minimum of 4 feet in height above finished grade or
other walking surface, measured on the side opposite the spa.
* * * **
2. No opening in a barrier or enclosure shall allow passage of a sphere larger than 4
inches.
3. The vertical distance between the bottom of a barrier or enclosure and the finished
grade or walking surface shall not exceed 4 inches.
4. The barrier or enclosure shall be constructed so as not to provide opportunity for
climbing on the side opposite the spa.
A. Footholds or handholds shall be not less than 48 inches from the top of the enclosure
or 48 inches from the finished grade, or other walking surface measured on the side opposite the
spa. Openings in chain -link fences, exceeding 1 inches, shall be slatted.
B. Wrought iron or wood barriers or enclosures shall be constructed with at least 48
inches between the top surface of the horizontal members.
C. Where the protrusion, indention, or top surface is at a continuous angle of inclination
towards the barrier or enclosure equal to 45 degrees above the horizontal and otherwise does not
provide a handhold or foothold, it shall be deemed not to provide an opportunity for climbing, for
purposes of this code.
D. Any space which falls within the area described by a 48 inch radius, centered at the
top of the barrier /enclosure, must be maintained free of all natural or man made objects.
5. Gates placed in an enclosure or barrier shall comply with the above. All gates shall be
not less than 48" in height and be self - closing and self - latching. Where the latch is less than 54"
above the walking surface or 50" above a foothold, the latch shall be installed on the spa side of
the gate not less than 42" above the walking surface, and the gate and barrier shall have no
opening greater than 1 inch within 18 inches of the latch. Gates in a barrier shall be installed to
swing in a direction opposite the spa.
46
6. The Building Official may grant an exception to the requirements of enclosing a spa
when he finds that there is a barrier or enclosure existing on the premises by reason of
• thorny /spiny vegetation, landscaping, or topography suitable to prevent access to the spa area.
(b) A securable space cover may be used for a barrier and enclosure if all the following
conditions are met:
1. When in the closed position, a sphere 4 inches in diameter is prevented from reaching
the water surface.
2. The cover is designed to support a static load of 100 pounds.
3. The spa width or diameter does not exceed eight feet (8').
(c) A spa safety cover may be used for a barrier or enclosure if all the following
conditions are met:
1. When in the closed position, a sphere 4 inches in diameter is prevented from reaching
the water surface.
2. The cover is designed to support a static load of 100 pounds.
3. The electric motor switch shall be key - operated or locked and there shall be an
additional power disconnect located not less than 48" above the finished grade, deck or other
• walking surfaces.
(d)(County Only) Any wall of a dwelling or other building may be used as part of an
enclosure or barrier if all the following conditions are met:
1. Windows leading to the spa area shall be provided with a latching device located not
less than 42 inches above the floor.
2. Hinged doors leading to the spa area shall be self - closing /self - latching with the latch
located not less than 42 inches above the finished grade or other walking surface, measured on
the side opposite the spa. Hinged screen doors when used as a barrier shall be
self - closing /self - latching and protected with a substantial grill on the spa side to a minimum
height of 36" above the walking surface.
3. A sliding door leading to the spa area shall be provided with a self - closing and
self - latching device on the door or the screen not less than 42 inches above the finished grade or
other walking surface, measured on the side opposite the spa. Screen doors shall be protected
with a substantial grill on the spa side to a minimum height of 36" above the walking surface.
Exception: In lieu of the self- closing doors required by (c) 1 and 2 above, said doors
may be equipped with an alarm which produces an audible warning when the door and
its screen, if present, are opened. The alarm shall sound continuously for a minimum off
• 30 seconds immediately after the door is opened, and be capable of being heard through
the house during normal household activities. The sound shall be distinctively different
from the sounds made by any smoke detector or other alarm installed in the house. The
47
alarm shall automatically reset after operation. The alarm may be equipped with a
• manual means, such as a touch -pad or switch, to temporarily deactivate the alarm for not
more than 15 seconds to accommodate a single opening of the door. The deactivation
means shall be located at least 554 inches above the floor or installed in a panelboard or
control panel which is inaccessible to children.
In new construction, alarms shall receive their primary power from the building wiring
and shall be equipped with a battery backup. Alarms may be solely battery operated when
installed in existing buildings.
(e)In the City of Tucson any wall of a dwelling or other building may be used as part of
an enclosure or barrier if all of the following conditions are met:
(1) No door may be in the section of wall used for the enclosure of barrier.
(2) Any window must be fixed (non - operable) or have a sill height of at least sixty (60 ")
inches above the interior floor or be permanently secured to allow the window to open
less than four (4 ") inches in the least dimension.
(f) In the city of Tucson, sub - section (c) may be used only for the retrofitting of the
enclosures/barriers of those pools constructed outside the city limits and subsequently annexed
and which are found not to be in compliance with the enclosure/barrier requirements of this code
• as mandated by Section 104(c), and any spa/pool found not to be in compliance with the code
under which it was originally constructed.
48
Chapter 6
• ABOVEGROUND SWIMMING POOLS
Scope
Sec. 601.(a) This chapter is intended to cover aboveground residential pools intended to
be used for swimming. This chapter is intended to cover certain aspects of the design,
equipment, operation, installation, new construction and rehabilitation of swimming pools. This
code may be met notwithstanding certain variations in equipment, materials, and design.
(b) This chapter is not meant to cover semi - public, public pools, or in- ground residential
pools.
(c) Other chapters are referenced in this chapter for items not covered.
Materials of Construction
Sec. 602.(a) The materials of components and accessories used in and around
aboveground pools shall be compatible with man and the environment in which they are
installed. These materials shall be capable of fulfilling the design, installation, and intended use
requirements in this chapter.
• (b) The selection of all materials for components and accessories to be used in and
around aboveground pools shall be such that all parts with external surfaces and edges that may
come in contact with the user are assembled, arranged, and /or finished (deburred, polished, etc.)
so that they will not constitute a cutting, pinching, puncturing or abrasion hazard under casual
contact and intended use.
(c) All paints and finishes shall be free of lead compounds.
Structural Design
Sec. 603.(a) The structural design and materials used shall be in accordance with
generally accepted good structural engineering practices.
1. The primary structure shall be designed for a factor of safety that conforms to accepted
engineering structural standards based on the total static water pressure of the pool.
A. Steel shall have a factor of safety of at least 1.7, and aluminum shall have a factor of
safety of at least 1.85.
2. The secondary structure(s) shall be designed for a factor of safety of 1.5, based on the
static load without permanent deformation.
• 3. In climates subject to freezing temperatures, the pool shell and appurtenances, piping,
hoses, filter system, pump and motor, and other components shall be so designed and constructed
to facilitate protection from damage due to freezing.
49
4. The surfaces intended to provide footing for users shall be designed to provide a
• slip- resisting surface. The roughness or irregularity of such surfaces shall not cause injury or
discomfort to the feet during normal use.
5. Onground Pools - The slope adjacent to the shallow area shall have a maximum slope
of 3:1, and the slope adjacent to the side walls shall have a maximum slope of 1:1.
Dimensional Design
Sec. 604.(a) No limits are specified for shape of aboveground swimming pools except
that consideration shall be given to shape from the stand -point of safety and circulation of the
swimming pool water.
1. There shall be construction tolerances allowed on all dimensional designs. Overall
Iength, width, and depth may vary plus of minus two inches unless otherwise specified.
(b) Aboveground pool liners shall conform to the following:
1. Liners shall be sealed to produce a membrane to contain the water in a watertight
envelope.
2. A winterized liner shall not physically crack when tested at ( -) 20 degrees Fahrenheit
1111 per ASTM test method (D- 1790).
3. A standard grade liner shall not physically crack when tested at zero degrees
Fahrenheit per ASTM test method (D- 1790).
4. Nominal liner thickness shall be plus or minus 10 percent of the thickness given by
the manufacturer per ASTM Test D -374 Method "C ".
5. Liners shall be so installed that a method is provided to prevent the liner from
slipping from the retainer and the sidewalls.
(c) Aboveground pool walls shall conform to the following:
1. Closure of walls shall be accomplished by mechanical joining which is capable of
withstanding the maximum stress applied to the wall. The means of closure shall be described in
easy -to- understand diagrams and /or language in the assembly instructions.
2. Maintenance of the wall shall be described in the instruction manual.
Assembly, Safety and Maintenance
Sec. 605.(a) Each new swimming pool shall be supplied with a clearly self - explanatory,
• illustrated set of instructions for installation, assembly and operation.
50
(b) All caution warnings shall be written in bold type, a minimum of twice the size of
the normal type used in the instructions and shall be contained in a bordered area.
(c) A prominently displayed, permanent and tamper -proof warning label with lettering
not less than 1/4" (0.6 cm) in height shall warn bathers that there will be "No Diving ".
(d) A notice shall be included advising that the swimming pool, like any other item of
equipment is subject to wear and deterioration and that certain types of excessive deterioration
can lead to failure of the swimming pool structure, which might release large quantities of water
that could cause bodily harm and property damage.
(e) The instructions shall clearly list the manufacturer's name and address or that of an
agent.
(f) The instructions shall advise the initial owner of a residential aboveground
swimming pool of some of the more important features related to safety concerning its
ownership, operation and maintenance.
Ladders /Stairs
Sec. 606.(a) All pools shall have a means of entry /exit consisting of at least one ladder
or stairs. Ladders /stairs shall conform to the following:
• 1. All ladder /stair treads shall have slip- resisting surfaces which are integral to or
permanently attached to the tread surface.
2. Ladders /stairs shall provide two (2) handrails/handholds that serve all treads.
3. Written instructions for proper assembly and use of all ladders shall include the
following:
A. "Locate ladder on a solid base"
B. "One person on the ladder at a time"
C. "The ladder shall be installed per manufacturer's instructions:
D. "Warning: No Diving - No Jumping ". Follow manufacturer's instructions.
E. Manufacturer shall provide instructions on which way to face when using
ladder and advise of same in instructions.
Decks and Deck Equipment
• Sec. 607.(a ) if deck structure relies on the p ool for support, (cantilever style) it must be
ascertained from the pool manufacturer that the pool structure is capable of supporting the deck.
51
1. The deck shall be designed to support a static load of 40 lbs. per square foot of Dead
Weight at point of 250 lbs. on the span of the deck both horizontal and vertical.
•
(b) The deck walking surface shall be:
1. Maximum of six inches (6 ") above the pool top rail.
2. Extend no more than three inches (3 ") beyond the inside of the top rail of the pool,
and be parallel to the top rail of the pool.
3. Decks that are installed flush with the top rail shall have the gaps filled in or coped.
(c) The top rail of the pool fence, deck fence, patio fence and walk- around fence shall
be a minimum of thirty six inches (36 ") from the deck surface.
1. Where provided, the height of the fence from the top horizontal bar to the top of the
rail of the pool shall be a minimum of thirty six inches (36 ").
2. Open -air spacing between pickets shall be a maximum of four inches (4 ") between all
vertical pickets and support posts.
3. Where a picket -type fence is provided, maximum openings between the top rail of the
• pool and the lower horizontal bottom rail of the fence shall not exceed a maximum four
inches (4 ").
(d) The deck surface shall be manufactured from materials that will provide a
slip- resisting surfaces. The deck owners instruction manual shall provide any finishing
instructions necessary to meet this requirement.
(e) The deck package shall have affixed at point of entry a permanent weather resistant
load capacity decal or plate containing the following information:
1. Warning
2. Maximum load capacity (person and equipment)
(f) The deck package shall have affixed at point of entry "Danger Do Not Dive or Jump"
safety signs in accordance with the standard specifications.
(g) Walk- around (patio) decks shall be a minimum of fifteen inches (15 ") wide,
measured from the inside of the pool to the outside of the pool walk - around.
Circulation Systems
Section 608.(a.) A circulation system consisting of pumps, hoses, tubing, piping, return
• inlets and suction outlets, skimmers, filters and other necessary equipment shall be provided for
complete and continuous circulation of water through all parts of the pool
52
1. The equipment shall be of adequate size to turn over the entire pool water capacity at
• least once every eight (8) hours.
2. Circulation system components which require replacement or servicing shall be
accessible for inspection, repair, or replacement, and shall be installed according to the
manufacturer's instructions.
3. Pool equipment shall be properly supported to prevent damage from misalignment,
settlement, etc. The equipment shall be mounted so as to minimize the potential for the
accumulation of debris and moisture, following manufacturer's instructions.
(b) The water velocity in the pool pressure and suction lines shall not exceed ten feet
(10') per second for pressure lines, and eight feet (8') per second for suction lines. Pool
recirculation systems shall be sized to permit the rated flows for filtering and cleaning without
exceeding the maximum head of the pump.
(c) The circulation system and fittings shall be of nontoxic material able to withstand
operating pressures and operating conditions.
(d) A pressure or vacuum gauge or other means of indicating system condition shall be
provided in the circulation system in an easily readable location.
• (e) The circulation system piping and fittings shall be nontoxic, shall be considered to
be process piping, and shall be of material able to withstand operating pressures and operating
conditions.
1. Equipment shall be designed and fabricated to drain the pool water from the
equipment, by removal of drain plugs and manipulating valves, or by other methods.
Refer to manufacturer's recommendations for specific information on draining the
system.
(f) Written operation and maintenance instructions shall be provided for the circulation
system.
Filters
Sec. 609.(a) Filters shall be designed so that after cleaning per manufacturer's
instructions, the system can provide the water clarity noted in Section 306(a).
1. Filters shall be designed so that filtration surfaces can be inspected and serviced.
2. On pressure -type filters, a means shall be provided to permit the release of internal
pressure.
A. Any filter incorporating an automatic internal air release as its principal means of air
release shall have a manual means to provide a slow and safe release of pressure as a part of its
• design.
53
B. Any separation tank used in conjunction with any filter tank shall have a manual
means of air release or a means to provide a slow and safe release of pressure as it is opened as a
• part of its design.
(b) Pressure filters shall have operation instructions permanently installed on the filter.
Filters with manual air release reliefs shall include a precautionary statement warning not to start
up the system without first opening the air release. The statement shall be visible and noticeable
within the area of the air release.
(c) Hoses, tubing, and piping furnished with the filter shall be of suitable material
capable of withstanding one and one -half (1 -1/2) times the shut -off head of the pump. The
hoses, tubing, and piping shall not collapse when there is a complete shut -off of flow on the
suction side of the pump.
Pumps and Motors
Sec. 610.(a) A pump and motor shall be provided for circulation of the pool water.
Performance of all pumps shall meet or exceed the conditions of flow required for filtering and
cleaning (if applicable) the filters against the total dynamic head developed by the complete
system.
(b) With all pressure filter systems a cleanable strainer or screen shall be provided
upstream of the circulation pump(s) to remove solids, debris, hair, lint, etc.
• c Pump(s) and motor(s) shall be accessible for inspection pO O ection and service. P
(d) The design and construction of the pump(s) and component parts shall provide safe
operation that is not hazardous to the operator or maintenance personnel.
(e) Where a mechanical pump seal is provided, components of the seal shall be
corrosion- resisting and capable of operating under conditions normally encountered in pool
operation.
(f) All motors shall be installed in accordance with the National Electric Code and be
constructed electrically and mechanically to perform satisfactorily and safely under the
conditions of load and environment normally encountered in swimming pool installations.
(g) Motor(s) shall be capable of operating the pump(s) under full load with a voltage
variation of plus or minus ten percent (+ 10 %) from the nameplate rating. If the maximum
service factor of the motor is exceeded (at full voltage), the manufacturer shall indicate this on
the pump curve.
(h) All motors shall have thermal or current overload protection, either built in or in the
line starter, to provide locked rotor and running protection.
• Return Inlets and Suction Outlets
54
Sec. 611.(a) Return inlet(s) and suction outlet(s) shall be provided and arranged to
produce a uniform disinfectant residual throughout the entire pool. Where skimmers are used,
• the return inlet(s) shall be located so as to help bring floating particles within range of the
skimmers.
(b) Return inlet(s) from the circulation system shall be designed so as not to constitute a
hazard to the user.
(c) The pool shall not be operated if the suction outlet grate is missing, broken, or
secured in such a way that it can be removed without the use of tools.
(d) If the suction outlet system, such as a filtration system, automatic cleaning system,
solar system etc., has a single suction outlet, or multiple suction outlets which can be isolated by
valves, each suction outlet shall conform to International Association of Plumbing and
Mechanical Officials Standard ANSI /ASME A112.19 8M -1987 to protect against bather
entrapment by either:
1. An approved safety cover.
2. A twelve inch by twelve inch (12" x 12 ") or larger grate.
3. Other approved means.
• (e) Where provided, the vacuum cleaner fittings(s) with safety covers, shall be located
in an accessible position(s) at least three inches (3 "), and no greater than eighteen inches (18 "),
below the minimum operating water level or as an attachment to the skimmer(s). Wall fitting
and safety covers shalL be approved by a nationally recognized testing agency.
Surface Skimmer Systems
Sec. 612.(a) A surface skimming system shall be provided on all aboveground
swimming pools, and shall be designed and constructed to skim the pool surface when the water
level is maintained within the operational parameters of the system's rim or weir device.
(b) Skimming devices shall be designed and installed so as not to constitute a hazard to
the user.
(c) Where automatic surface skimmers are used as the sole overflow system, at least one
(1) surface skimmer shall be provided for each eight hundred (800) square feet, or fraction
thereof, of the water surface area.
Electrical Requirements
Sec. 613. The requirements of the National Electrical Code (NEC), as published by the
National Fire Protection Association, amended and adopted by the jurisdiction, shall be followed.
• Heaters
55
Sec. 614.(a) Swimming pool heaters shall be tested by a nationally recognized testing
agency and comply with the appropriate current nationally recognized standards.
(b) The heater(s) shall be installed according to the manufacturer's recommendations.
1. The heater shall be installed on a concrete (or equivalent) base unless it is specifically
designed for installation on a combustible surface.
2. Adequate clearances shall be maintained on all sides and over the top of the heater.
As shown in the manufacturer's instructions.
3. The heater shall have adequate ventilation in order to assure proper combustion.
4. When installing a heater indoors, the heater shall be installed in accordance with the
Uniform Mechanical Code as amended and adopted by the Administrative Authority, and the
manufacturer's recommendation for properly sized air openings to the enclosure.
A. Draft or venting devices shall be installed according to the manufacturer's
recommendations and shall not be modified.
B. A heater using propane gas shall not be installed in a pit or basement. Whenever
installing a heater using propane gas, the manufacturer's instructions shall be followed.
(d) Heater Piping System:
1. The heater gas supply piping shall comply with the Uniform Plumbing Code as
amended and approved by the administrative authority. When installing a gas -fired heater, the
gas Iine shall be run from the gas meter as directly as practical.
2. The heater circulation system shall comply with the manufacturer's recommendations.
3. The water piping system shall be installed according to the manufacturer's
recommendations.
A. When installing a heater and a filter system, adequate provisions shall be made so
that the heater does not cause excessive pressure drop to the filter system. Refer to
manufacturer's requirements and /or recommendations for installation of bypass valves.
Water Supply
Sec. 615.(a). No direct mechanical connection shall be made between the potable water
supply and the swimming pool, chlorinating equipment, or the system of piping for the pool,
unless it is protected against backflow and back - siphonage in a manner approved by the building
official or through an air gap, or other equivalent means approved by the building official.
(c) An over - the -rim spout, if used, shall be properly shielded so as not to create a
• hazard. Its open end shall have no sharp edges and shall not protrude more than two inches (2 ")
beyond the edge of the pool.
56
Waste Water Disposal
• Sec. 616. Backwash water shall be disposed of and contained on site. All discharges of
backwash water shall comply with applicable Town ordinances and Arizona Department of
Environmental Quality (ADEQ) Engineering bulletins. Spas may be drained to the street when
the the water being discharged is chlorine free, at a Ph of 7 plus or minus.5, and no known
biological hazards are present. Any stain or residue resulting from water disposal shall be
removed by rinsing with potable water or other approved means. Water may be discharged to a
wash when the above criteria are met and with measures to prevent erosion of the wash bank or
channel.
Disinfectant Equipment, Oxidation Equipment, and Chemical Feeders
Sec. 617.(a) Disinfectant equipment, oxidation equipment, and chemical feeders,
hereafter referred to jointly as "equipment" shall comply with nationally recognized standards.
The disinfection equipment and the chemical feeders shall be capable of precisely introducing a
sufficient quantity of a disinfecting agent.
(b) Chemical Feeders. Good engineering practices and manufacturer's instructions shall
be used in installing chemical feeders.
(c) Low Ozone Output Generating Equipment. The installation of ozone generating
• equipment shall be limited to low ozone output generating equipment. The installation and use
of ozone generating equipment shall conform to the following:
1. Installation of ozone generating equipment shall allow for indications of operation or
malfunction to be easily observed. The equipment shall be installed in a manner such that a
malfunction will not endanger operators or pool users.
2. Ozone generating equipment shall be used in conjunction with other chemical
treatments. Normal maintenance and monitoring of water chemistry shall be followed.
3. Good engineering practices and manufacturer's recommendations shall be used to
determine where and how ozone shall be injected.
Barriers and Enclosures
Sec. 618. Outdoor aboveground,swimming pools shall be provided with an enclosure
and barrier meeting the requirements of Section317 of this code, or :
1 A pool safety cover may be used for a barrier if all the following conditions are met:
a. When in the closed position, a sphere 4 inches in diameter is prevented from reaching
• the water surface.
b. The cover is designed to support a static load of 485 pounds.
57
c. The electric motor switch shall be key- operated or locked or there shall be an
• additional power disconnect located not less than 54" above the finished grade, deck or other
walking surfaces.
2. The walls of a typical portable pool do not provide the required 5 foot high
enclosure. Provisions must be made to surround the pool with an enclosure that meet all the
requirements of Section 317 of this code.
•
• •
•
58
Chapter 7
• PUBLIC AND SEMI - PUBLIC SWIMMING POOLS
Scope
•
Sec. 701.(a) This chapter is intended to cover public and semi- public pools to be used
for bathing and operated by an owner, licensee, or concessionaire, regardless of whether a fee is
charged for use.
1. This chapter is intended to cover certain aspects of the design, equipment, operation,
installation, new construction and rehabilitation of pools. This code may be met notwithstanding
certain variations in equipment, materials, and design.
(b) This chapter is not meant to cover hot tubs, permanently installed residential pools,
portable spas, aboveground pools, or other pools or spas, such as those operated for medical
treatment, physical therapy, or other special purposes.
(c) other standards are referenced in this chapter for items not covered.
Materials of Construction
Sec. 702. Swimming pools and all appurtenances thereto shall be constructed of
materials which are nontoxic to man and the environment; which are impervious and enduring;
which can withstand the design stresses; and which will provide a watertight structure with a
smooth and easily cleaned surface without cracks or joints, excluding structural joints, or to
which a smooth easily cleaned surface finish is applied or attached.
Structural Design
Sec. 703.(a) Prior to construction, rehabilitation, or alteration of a permanently installed
public or semi- public swimming pool, plans and specifications, as required by Section 110 of this
code, shall be submitted to the building official for review, approval, and issuance of a permit to
construct or rehabilitate or alter. All plans and specifications shall have first been reviewed and
approved by the Health Department.
(b) The structural design and materials used shall be in accordance with generally
accepted good structural engineering practices.
(c) Sand or earth shall not be permitted as an interior finish in a swimming pool.
(d) In climates subject to freezing temperatures, the pool shell and appurtenances,
piping, filter system, pump and motor, and other components shall be so designed and
constructed to facilitate protection from damage due to freezing.
• (e) The surfaces within the pool intended to provide footing for users shall be designed
to provide a slip- resisting surface. The roughness or irregularity of such surfaces shall not cause
injury or discomfort to the feet during normal use.
59
(f) The colors, patterns, or finishes of the pool interior shall not be such as to obscure
• the existence or presence of objects or surfaces within the pool
(g) The swimming pool shall be built in compliance with the plans as approved unless
subsequent written approval of changes has been given by the building official.
(h) The swimming pool owner or agent shall notify the building official at specific,
predetermined stages of construction, and at the time of completion of the pool, to permit
inspections.
Dimensional Design
Sec. 704.(a) No limits are specified for the shape of swimming pools except that
consideration shall be given to shape from the standpoint of safety and circulation of the
swimming pool water.
1. There shall be no protrusions, extensions, means of entanglement, or other
obstructions in the swimming area which can cause the entrapment or injury of the user.
2. There shall be construction tolerances allowed on all dimensional designs. Overall
length, width, and depth in the deep end may vary plus or minus three inches (+3"). All other
overall dimensions may vary plus or minus two inches ( +2 "), unless otherwise specified (such as
• in a Class A pool). The designed waterline shall have a maximum construction tolerance at the
time of completion of the work of plus or minus one -fourth inch (+1/4") for pools with adjustable
weir surface skimming systems, and of plus or minus one- eighth inch ( +1/8 ") for pools with
nonadjustable surface skimming systems.
3. The size of Class A or D pools shall be governed by the requirements of the activities
for which the installation is intended.
(b) Walls in Class B and C pools shall not be greater than 11_ from plumb (see
Appendix, figure 2) for a minimum depth of two feet nine inches (2'9 ") from the waterline in
deep areas, or two feet three inches (2'3 ") in the shallow areas. Below these depths, the wall may
be radiused to join the floor. Class A pools, where racing lanes terminate, shall have plumb
walls.
(c) Floor slopes shall, as a minimum, be in compliance with Section 704.(c)1 through 5.
1. All slopes shall be uniform.
2. The slope of the floor from the shallow end wall towards the deep end shall not
exceed one foot in twelve feet (1':12') to the point of the first slope change for Class A and B
pools, or one foot in ten feet (1':10') for Class C pools.
3. The point of the first slope change shall be defined as the point at which the floor
slope exceeds one foot in twelve feet (1':12') for Class A and B pools, or one foot in ten feet
• (1':10') for Class C pools.
60
4. The slope of the floor from the point of the first slope change to the deep end shall
not exceed one foot in three feet (1':3'). Such slopes are not intended to provide any less water
• depth than those specified if the pool is intended for diving.
5. Transitional radius from wall to floor where floor slopes join the wall shall comply
with the following:
A. The radius shall have its center no less than two feet nine inches (2'9 ") below the
waterline in deep areas or two feet six inches (2'6 ") in the shallow area.
B. The radius shall be tangent at the points where the radius meets the wall and the
floor.
C. The radius shall be at least equal to, or greater than, the depth of the pool minus the
vertical wall depth measured from the waterline (or tolerance allowed in Section 704(a)2), minus
three inches (3 ") to allow draining to the main drain. (R minimum Pool depth - Vertical wall
depth - 3 ")
(d) Water depths at the shallow end of the swimming area shall be three feet (3')
minimum, with a three feet six inches (3'6 ") minimum for racing pools. Exceptions may be
made in a recessed area of the main swimming pool, outside of the competitive and /or swimming
course, when the pool is an irregular shape with the permission of the building official.
• 1. The beginners' area of a pool shall be visually set apart from, but may be adjoined to,
the shallow area and shall not adjoin the deep area.
2. The transition point of the pool from the beginners' area to the shallow area and from
the shallow area to the deep area shall be visually set apart with a rope and float line; depth
markers; and a four inch (4 ") minimum width row of floor tile, pointed line, or similar means of
a color contrasting with the bottom. In diving pools with a constant slope, the shallow area shall
be visually set apart from the deep area with a rope and float line, depth markers; and a four inch
(4 ") minimum width row of floor tile, painted line, or similar means of a color contrasting with
the bottom.
3. Class A pools intended for competitive diving and swimming shall be designed and
constructed so as to provide the water depths specified by Federation International de National
Amateur (FINA) U. S. Swimming, and U. S. Diving.
(e) Class B and C pools intended for diving shall conform to the minimum water depths,
areas, slopes, and other dimensions shown in Appendix A, Figure 11. If a wall exists, then it shall
conform with the 3:1 slope in the Point D dimension and the L1 -2 -3 -4 dimensions.
1. When diving equipment is installed, it shall conform to the specifications set forth in
Section 705.(a) and shall be located in the diving area of the pool so as to provide the minimum
dimensions as shown in Appendix A, Figure 11. Competitive diving equipment shall not be
• installed on Class B and C pools.
61
2. The tip of the diving equipment shall be located at Point "A," which is the reference
• point of all other dimensions.
3. There shall be a completely unobstructed clear vertical distance of thirteen feet (13')
above any diving board measured from the center of the front end of the board. This area shall -
extend horizontally at least eight feet (8') behind. eight feet (8') to each side, and sixteen feet
(16;) ahead of Point A.
4. Public pools with diving facilities in excess of three (3) meters in height, or pools
designed for platform diving, shall comply with the dimensional design requirements of FINA,
U. S. Diving, National Federation of State High School Associations (NFSHSA), etc.
(f) Offset ledges, as shown in Appendix A, figure 10, when provided, shall fall within
11 degrees from plumb starting at the junction of the pool wall and waterline, and shall have a
slip- resisting surface. Maximum width shall be eight inches (8 "). The typical allowable
dimensions are based on the depths shown below:
(g) Underwater seat benches, when provided, shall have a maximum horizontal seat
bench depth of twenty inches (20 ") below the waterline, be visually set apart, have a
slip- resisting surface, and shall be located fully outside of the required minimum diving water
envelope if the pool is intended for use with diving equipment.
1. Underwater seat benches shall be permitted in the deep end of the pool only if they
• are either completely recessed, shaped to be compatible with the contour of the pool wall, or in a
corner of the pool.
(h) Maximum user load at Class B or C pools shall be in accordance with the following
table:
Shallow Deep Area (not Diving Area ( per
Instructional or including the diving each diving board)
Wading Area area)
Pools with 15 square feet per 20 square feet per 300 square feet per
minimum deck swimmer swimmer swimmer
area
Pools with deck 12 square feet per 15 square feet per 300 square feet per
area at least swimmer swimmer swimmer
equal to water
surface area
Pools with deck 8 square feet per 10 square feet per 300 square feet per
area at least swimmer swimmer swimmer
twice the water
surface area _
62
1. Where there is an anticipated maximum load in the swimming pool, there shall not be
less than fifteen (15) square feet per user. Consideration shall be taken by the designer /operator
to make certain that there is adequate room for the users.
(i) Wading pools shall be separated from public and semi - public swimming pools by
minimum four foot height fence or partition with self - closing, self - latching gate to prevent the
direct entrance of waders into the swimming pool areas.
1. Wading pools shall have a maximum water depth of twenty inches (20 "). The water
depth at the perimeter shall not exceed eighteen inches (18 "). Water depths may be reduced from
the above maximums and brought to zero at the most shallow point.
2. Walls in wading pools shall be vertical or within 11_ of vertical except for the lower
six inches (6 ") which shall be radiused to the floor. Walls shall not extend more than six inches
(6 ") above the waterline at each point.
3. Floors of wading pools shall be uniform, sloped to drain with a maximum slope of 1
foot in 12 feet (1
Decks and Deck Equipment
Sec. 705.(a) These requirements shall be for decks and deck equipment used by users
and shall apply at the time of construction.
• 1. Deck(s) shall be designed and installed in accordance with the engineering practices
required in the area of installation. This includes the design and quality of subbase when
required, concrete mix design, reinforcing, joints, etc.
2. Decks, ramps, coping, and similar step surfaces shall be slip - resisting and easily
cleanable.
3. Special features in or on deck(s) such as markers, brand insignias or similar shall
conform to this article.
4. Risers for steps for the deck shall be uniform and have a minimum height of three
and three - fourths inches (3 -3/4 ") and a maximum height of seven (7"). The minimum tread
depth shall be eleven inches (11).
5. Excavation areas shall be adequately compacted when they support the deck(s).
6. The minimum continuous, unobstructed deck width, including the coping, shall
conform to the following, as appropriate.
A. Class A pool - As recommended by the appropriate activity (FINA, U. S. Swimming,
U. S. Diving.)
• B. Class B pool - Ten feet (10') minimum.
C. Class C pool - Four feet (4') minimum.
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D. Class D pool - Three feet (3') minimum where provided.
•
E. A minimum four feet (4') deck width shall be provided on the sides and rear of any
diving equipment. A deck clearance of twenty -four inches (24 ") shall be provided around any
other deck equipment that is thirty -six inches (36 ") or less in height above the deck. A deck
clearance of thirty -six inches (36 ") shall be provided around all other deck equipment.
7. The minimum slope of the deck(s) shall be one- eighth inch per one foot (1/8::1') for
textured, hand - finished concrete decks; one -fourth inch per one foot (1/4": 1') for exposed
aggregate concrete decks; and one -half inch per one foot (1/2":1') for indoor /outdoor carpeting
decks, unless an alternate drainage method is provided.
8. The maximum slope of all decks other than wood decks shall be one inch per foot
(1 ":1') except for ramps. The maximum slope for wood decks shall be one - eighth inch per foot
(1/8 ":2'). Gaps shall be based on good engineering practices with respect to the type of wood
used.
9. The maximum voids between adjoining concrete slabs, and /or between concrete slabs
and expansion joint material, shall be three - sixteenths inch (3/16 ") of horizontal clearance with a
maximum difference in vertical elevation of one -fourth inch (1/4").
A. Construction joints where pool coping meets concrete deck(s) shall be watertight and
• shall not allow water to g to the ground beneath.
B. The areas where the deck(s) join pool coping shall be designed and installed so as to
protect the coping and its mortar bed from damage as a result of reasonable movement of
adjoining deck(s).
C. Joints in deck(s) shall be provided to minimize the potential for cracks due to a
change in elevations, separation of surfaces, or movement of the slab.
D. The areas where deck(s) join concrete work shall be protected by expansion joints to
protect the pool adequately from the pressures of relative movements.
E. Deck(s) shall be edged, have a radius, or be otherwise relieved to eliminate sharp
corners.
F. Deck(s) shall be sloped to effectively drain either to perimeter areas or to deck drains.
Drainage shall remove pool splash water, deck cleaning water, and rain water without leaving
standing water.
G. Site drainage shall be provided so as to direct all perimeter deck drainage as well as
general site and roof drainage away from the pool. When required, yard drains shall be installed
to prevent the accumulation or puddling of site water in the general area of the deck(s) and
related improvements.
10. If used, an open pit or leaching design for backwash sump purposes shall be located
so that it falls completely below adjacent deck(s) and fully outside a line projected 45 degrees
64
downward, refer to drawing shown in Figure 305, and away from such deck(s), or shall be
designed to accommodate local soil conditions and the volume of backwash.
•
11. Circulation system piping, other than that integrally included in the manufacture of
the pool, shall be subject to an induced static hydraulic pressure test (sealed system) at
twenty -five (25) pounds per square inch (psi) for thirty (30) minutes. This test shall be
performed before the deck is poured, and the pressure shall be maintained through the deck pour.
12. Valves installed in or under any deck(s) shall be provided with a minimum ten
inches (10 ") diameter access cover and valve pit to facilitate servicing.
13. A hose bibb with a vacuum breaker shall be provided for washing down the entire
deck area.
14. All pools shall have at least two (2) means of entry /exit Iocated so as to serve both
ends of the pool. These shall consist of ladders, stairs, or recessed treads and may be used in
combination. All treads shall have slip- resisting surfaces.
a. Where water depths are twenty -four inches (24 ") or less at the pool wall, such areas
shall be considered as providing their own natural mode for entry /exit.
b. For pools or water areas over thirty feet (30') in width, both sides of the deep portions
of the pool shall have a entries /exits provided.
• c. A means of entry /exits for the shallow end shall be located between the shallow end
wall and the cross section at point "D ", while a means of entry /exit for the deep end shall be
between the deep end wall and the cross section at point "B ". As shown in Appendix A, Figure
11.
d. A means of entry /exit shall be provided at a minimum of every seventy -five (75)
linear feet of pool wall or fraction thereof.
e. Stairs, ladders and recessed treads shall be located so as not to interfere with racing
lanes if applicable.
15. The design and construction of protruding and recessed pool stairs shall conform to
the following:
a. Step treads shall have a minimum unobstructed horizontal depth of ten inches (10")
and a minimum unobstructed surface area of two hundred forty (240) square inches.
b. Risers at the centerline of the treads shall have a maximum uniform height of twelve
inches (12 "), with the bottom riser height allowed to vary plus or minus two inches (± ") from the
uniform riser height.
16. Each set of stairs shall be provided with at least one (1) handrail to serve all treads
• and risers. Handrails shall conform to the following:
65
a. Handrails if removable, shall be installed in such a way that they cannot be removed
without the use of tools.
b. The leading edge of handrails facilitating stairs and pool entry/exit shall be no more
than eighteen inches (18 ") plus or minus three inches (±3 "), horizontally from the vertical plane
of the bottom riser (where applicable).
c. The outside diameter of handrails shall be between one inch (1") and two and one
quarter inches (2.25").
d. Underwater seats, benches or swimouts may be provided as part of the stairs or
recessed treads.
17. The design and construction of pool ladder(s) shall conform to the following:
a. Pool ladders shall be made entirely of corrosion- resisting materials.
b. Ladders shall be provided with two (2) handholds or two (2) handrails.
c. Below the water level, there shall be a clearance of not more than six inches (6 ") nor
less than three (3 ") inches between any ladder tread edge, measured from the pool wall side of
the tread and the pool wall.
d. The clear distance between ladder handrails shall be a minimum of seventeen inches
( 17 " and a maximum of twenty -four inches (24 ").
e. There shall be a uniform height between ladder treads, with a seven inch (7 ")
minimum distance and a twelve inch (12 ")maximum distance.
f. Ladder treads shall have a minimum horizontal depth of one and one -half inches (1 ").
18. The design and construction of recessed treads in the pool shall conform to the
following:
a. Recessed treads at the centerline shall have a uniform vertical spacing of twelve
inches (12 ") maximum and seven inches (7 ") minimum.
b. The vertical distance between the pool coping edge, deck, or step surface and the
uppermost recessed tread shall be a maximum of twelve inches (12 ").
c. Recessed treads shall have a minimum depth of five inches (5 ") and a minimum
width of twelve inches (12 ").
d. Recessed treads shall drain into the pool to prevent the accumulation of dirt.
e. Each set of recessed treads shall be provided with a set of
• handrails /guardrails /handholds to serve all treads and risers.
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19. Supports, platforms, stairs, and ladders for diving equipment shall be designed to
carry the anticipated loads. Stairs and ladder shall be of corrosion- resisting material, easily
• cleanable and with slip- resisting tread. All diving stands higher than twenty -one inches (21")
measured from the deck to the top butt end of the board shall be provided with stairs and /or a
ladder. Step treads shall be self - draining.
a. Platforms and diving equipment of one (1) meter or higher shall be protected with
guard rails which shall be at least thirty inches (30 ") above the diving board and extend to the
edge of the pool wall. All platforms or diving equipment high than one (1) meter shall have
guard rails which are at least thirty six (36 ") inches above the diving board and extend to the
edge of the pool wall.
20. Diving equipment shall be designed for swimming pool use and shall be installed in
accordance with the manufacturer's recommendations. Diving equipment manufacturers shall
provide installation instructions and specifications with each unit. A label shall be permanently
affixed to the diving equipment or jump board and shall include:
A. Manufacturer's name and address.
B. Board equipment length.
C. Identification as to diving or jump board.
• D. Fulcrum setting specifications (if applicable).
E. Reference to the current year and sections of the applicable NSPI standard.
3. Diving equipment suitable for installation on a lower pool type may be installed on
any higher pool type providing no less a water envelope is provided from the tip of the board
than called for in the lower type. Diving equipment of a greater type, e.g., Type VIII, shall not be
installed on a pool of lesser type, e.g. Type VII. Should diving equipment be installed at any
greater height than specified for the lower type pool, water surface area and geometry shall be
provided for the type pool which permits board installation at that height.
4. Diving equipment shall have slip- resisting tread surfaces.
5. Diving equipment shall be permanently anchored to the pool deck. The edge of the
board at the tip end shall be level with the water surface. The tip end of the board over the pool
water surface may be higher than the butt end of the board. Refer to manufacturer's
recommendations.
6. Maximum board height over the water shall have plus three inches (+3") tolerance to
allow for construction variances only on Class B and C pools.
7. The maximum construction tolerance of the tip of the board from Point "A" shall be
plus or minus three inches ( +3 ") on Class B and C pools. The diving equipment shall be in
compliance with Section 704.(e)2.
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(h) The requirements of the U.S. Consumer Product Safety Commission (CPSC)
• Standard for Swimming Pool Slides as published in the Code of Federal Regulations, 16 CFR,
Part 1207, shall be used for standards relating to swimming pool slides. Installation and use
instructions shall be provided with each unit by the manufacturer.
Circulation Systems
Sec. 706.(a) A circulation system consisting of pumps, piping, return inlets and suction
outlets, filters, and other necessary equipment shall be provided for complete circulation of water
through all parts of the pool.
1. The equipment shall be of adequate size to turn over the entire pool water capacity at
least once every eight (8) hours. The system shall be designed to give the proper turnover rate
based on the manufacturer's recommended maximum pressure flow of the filter, in clean media
condition of the filter. Water clarity shall be maintained as required by the health department.
2. Circulation system components which require replacement or servicing shall be
accessible for inspection, repair, or replacement and shall be installed according to the
manufacturer's instructions.
3. Materials and equipment used in the circulation system shall comply with the
Nationally recognized standards.
• 4. Pool equipment shall be properly supported to prevent damage from misalignment,
settlement, etc. The equipment shall be mounted so as to minimize the potential for the
accumulation of debris and moisture, following manufacturer's instructions.
(b) The water velocity in the pool piping shall not exceed ten feet (10') per second for
discharge piping (except for copper pipe where the velocity should not exceed eight feet (8') per
second), and six feet (6') per second for suction piping, unless summary calculations are provided
to show that the greater flow is possible with the pump and piping provided. Pool piping shall be
sized to permit the rated flows for filtering and cleaning without exceeding the maximum head of
the pump.
1. A wading pool shall have a separate circulation system of adequate size to turn over
the entire pool water capacity at least once every two (2) hours.
(c) The circulation system piping and fittings shall be nontoxic, shall be considered to
be process piping, and shall be of material able to withstand operating pressures and operating
conditions.
1. Pool piping subject to damage by freezing shall have a uniform slope in one direction
equipped with valves for adequate drainage. Pool piping shall be supported at sufficient intervals
to prevent entrapment of air, water, or dirt. Provisions shall be made for expansion or
contraction of pipes.
•
2. Equipment u
E q p designed shall be desi ned and fabricated to drain the pool water from the
equipment, together with exposed face piping, by removal of drain plugs and manipulating
68
valves, or by other means. Refer to manufacturer's recommendations for specific information on
draining the system.
(d) A pressure or vacuum gauge or other means of indicating system condition shall be
provided in the circulation system in an easily readable location, as required in section 7080).
1. Class A, B and C public pools shall be provided with an indicator measuring the rate
of flow through the filter system with an appropriate range readable in gallons per minute and
accurate within ten (10) percent actual flow.
(e) The circulation system shall be capable of maintaining water clarity and water
chemistry requirements. Time clocks may be used to set the operating period. When time clocks
are used, they shall also govern the operating time of appurtenant devices such as
chemical /disinfectant feeders, slurry feeders, heaters, etc. that are dependent upon circulation
pump flow.
(f) Operation and maintenance instructions shall be provided for the circulation system.
Filters
Sec. 707.(a) Filters shall be designed so that after cleaning per manufacturer's
instructions the system can provide the water clarity noted in Section 706.(a)1.
1. Filters shall be designed so that filtration surfaces can be inspected and services.
(b) On pressure -type filters, a means shall be provided to permit the release of internal
pressure.
1. Any filter incorporation an automatic internal air release as its principal means of air
release shall have lids which provide a slow and safe release of pressure as a part of its design.
2. Any separation tank used in conjunction with any filter tank shall have a manual
means of air release or a lid which provides a slow and safe release of pressure as it is opened as
a part of its design.
(c) Pressure filters and separation tanks shall have operation and maintenance
instructions permanently installed on the filter or separation tank and shall include a
precautionary statement warning not to start up the system after maintenance without first
opening the air release and proper reassembly of the filter and separation tank. The statement
shall be visible and noticeable within the area of the air release.
(d) Piping furnished with the filter shall be of suitable material capable of withstanding
one and one -half (1) times the working pressure. The suction piping shall not collapse when
there is a complete shutoff of flow on the suction side of the pump.
Pumps and Motors
69
Sec. 708.(a) A pump and motor shall be provided for circulation of the pool water.
Performance of all pumps shall meet or exceed the conditions of flow required for filtering and
• cleaning (if applicable) the filters against the total dynamic head developed by the complete
system.
(b) With all pressure filter systems, a cleanable strainer or screen shall be provided
upstream of the circulation pump(s) to remove solids, debris, hair, lint, etc.
(c) Pump(s) and motor(s) shall be accessible for inspection and service.
(d) The design and construction of the pump(s) and components parts shall provide safe
operation.
(e) Where a mechanical pump seal is provided, components of the seal shall be
corrosion- resisting and capable of operating under conditions normally encountered in pool
operation.
(f) All motors shall have as a minimum an open, drip -proof enclosure and be
constructed electrically and mechanically to perform satisfactorily and safely under the
conditions of load and environment normally encountered in swimming pool installations.
(g) Motor(s) shall be capable of operating the pump under full load with a voltage
variation of plus or minus ten ( +10) percent from the nameplate rating. If the maximum service
• factor of the motor is exceeded (at full voltage) the manufacturer shall indicate this on the pump
curve.
(h) All motors shall have thermal or current overload protection, either built in or in the
line starter to provide locked rotor and running protection.
(i) When the pump is below the waterline valves shall be installed on permanently
connected suction and discharge lines, located in an accessible place outside the walls of the
pool, where they shall be readily and easily accessible for maintenance and removal of the pump.
(j) Pressure and vacuum gauges shall be installed on all public pools.
1. The vacuum gauge shall be installed as close to the pump return inlet as possible and
still maintain an accurate reading.
2. The pressure gauge shall be installed on the face piping ahead of the filter or on top
of the filter in the area of greatest filter pressure.
Return Inlets and Suction Outlets
Sec. 709.(a) Return inlet(s) and suction outlet(s) shall be provided and arranged to
• produce a uniform circulation of water and maintain a uniform disinfectant residual throughout
the pool. Where skimmers are used, the return inlet(s) shall be located so as to help bring
floating particles within range of the skimmers.
70
• (b) Adjustable pool wall inlets shall be provided on all pools. Inlets shall be of
sufficient number, properly designed, sized and installed to produce uniform circulation
throughout the pool. There shall be a minimum of six inlets. At least one inlet shall be located
within five feet of each corner and in each step alcove. Inlets shall be on a closed loop piping
system. Where the width of the pool exceeds thirty feet, bottom returns will also be required.
Bottom returns shall be flush with the pool bottom or of such design as to prevent injury to
bathers. Returns will be considered to have an area of influence described by a radius of fifteen
feet.
(c) Pools shall be equipped with at least one main drain located in the deepest portion.
Drains shall be covered by grating, which are not readily removable by bathers and which have
safe openings at least four times the area of the drain pipe. Drains shall be spaced at intervals of
not greater than one each twenty feet of pool width in the deepest portion. All drains must have
plumbing provisions so as to relieve any possibility of entrapping suction.
(d) If the suction outlet system, such as a filtration system, automatic cleaning system,
solar system etc., has a single suction outlet, or multiple suction outlets which can be isolated by
valves, each suction outlet shall conform to International Association of Plumbing and
Mechanical Officials Standard ANSI /ASME A112.19 8M -1987 to protect against bather
entrapment by either:
1. An approved safety cover.
2. A twelve inch by twelve inch (12" x 12 ") or larger grate.
3. Other approved means.
(e) A pool vacuum cleaning system shall be provided. In integral systems, connections
shall be provided in sufficient number and location in the pool walls and is recommended to be at
least ten inches below the water line. In addition, automatic or self - cleaning systems may be
installed if they are approved by the department. Vacuum systems are to be installed with
positive type shut off valves in the equipment area. Vacuum system shall be operational only
when the vacuum lines are attached during the cleaning process. Vacuum inlets are to be
installed with I.A.P.M.O. approved safety covers.
Surface Skimmer System
Sec. 710.(a) A surface skimming system shall be provided on all public swimming
pools, and shall be designed and constructed to skim the pool surface when the water Ievel is
maintained within the operational parameters of the system's rim or weir device.
(b) Skimming devices shall be designed and installed so as not to constitute a hazard to
the bather.
c Where an automatic surface skimming system is used as the sole overflow system, (c) g Y Y , at
least one (1) surface skimmer shall be provided for each five hundred (500) square feet or
71
fraction thereof of the water surface area. Nominal recessed areas such as stairs, swimouts, spas,
etc., shall not be considered in the calculation. When skimmers are used, they shall be located to
maintain effective skimming action over the entire surface of the pool.
(d) Where a perimeter -type surface skimming system is used as the sole surface
skimming system, this system shall extend around a minimum fifty (50) percent of the perimeter
of the pool.
1. Where perimeter surface skimming systems are used, they shall be calculated to the
circulation system with a system surge capacity of not less than one (1) gallon for each square
foot of pool surface.
(e) The hydraulic capacity of the overflow system shall be capable of handling one
hundred (100) percent of the circulation flow.
Electrical Requirements
Sec. 711. The requirements of the National Electrical Code (NEC), as published by the
National Fire Protection Association, amended and adopted by the jurisdiction, shall be used.
Heaters
Sec. 712.(a) Swimming pool heaters shall be tested by a nationally recognized testing
• agency and comply with the appropriate current nationally recognized standards.
(b). The heater(s) shall be installed according to the manufacturer's recommendations
and the following: •
1. The heater shall be installed on a concrete (or equivalent) base unless it is specifically
designed for installation on a combustible surface.
2. Adequate clearances shall be maintained on all sides and over the top of the heater, as
shown in the manufacturer's instructions.
3. The heater shall have adequate ventilation in order to assure proper combustion.
4. When installing a heater indoors, the heater shall be installed in accordance with the
Mechanical Code as amended and adopted by the jurisdiction, and the manufacturer's
recommendation for properly sized air openings to the enclosure.
A. Draft or venting devices shall be installed according to the manufacturer's
recommendations and shall not be modified.
B. A heater using propane gas shall not be installed in a pit or basement. Whenever
installing a heater using propane gas, the manufacturer's instructions shall be followed.
(d) Heater Piping System:
72
1. The heater gas supply piping shall comply with the Plumbing Code as amended and
adopted by the administrative authority. When installing a gas -fired heater, the gas line shall be
• run from the gas meter as directly as practical.
2. The heater circulation system shall comply with the manufacturer's recommendations.
3. The water piping system shall be installed according to the manufacturer's
recommendations.
A. When installing a heater and a filter system, adequate provisions shall be made so
that the heater does not cause excessive pressure drop to the filter system. Refer to
manufacturer's requirements and /or recommendations for installation of bypass valves.
Water Supply
Sec. 713.(a) The water supply serving the pool, which may come from a variety of
sources, shall meet the requirements of the Health Department (See Appendix B included for
reference only) before the using the pool.
(b) No direct mechanical connection shall be made between the potable water supply
and the swimming pool, chlorinating equipment, or the system of piping for the pool, unless it is
protected against backflow and back - siphonage in a manner approved by the building official, or
through an air gap approved, or other equivalent means approved by the building official.
c An over - the -rim spout, if used shall be located under a diving board, adjacent p � g acent to a J
Iadder, or otherwise properly shielded so as not to create a hazard. Its open end shall have no
sharp edges and shall not protrude more than two inches (2 ") beyond the edge of the pool.
Waste Water Disposal
Sec. 714. Backwash water shall be disposed of and contained on site. All discharges of
backwash water shall comply with applicable Town ordinances and Arizona Department of
Environmental Quality (ADEQ) Engineering bulletins. Spas may be drained to the street when
the the water being discharged is chlorine free, at a Ph of 7 plus or minus.5, and no known
biological hazards are present. Any stain or residue resulting from water disposal shall be
removed by rinsing with potable water or other approved means. Water may be discharged to a
wash when the above criteria are met and with measures to prevent erosion of the wash bank or
channel.
Disinfectant Equipment and Chemical Feeders
Sec. 715.(a) Disinfectant equipment and chemical feeders, hereafter referred to jointly
as "equipment" shall comply with the requirements of nationally recognized standards. The
disinfecting equipment shall be capable of precisely introducing a sufficient quantity of an
approved disinfecting agent.
• •
1. Every pool shall be required to have disinfectant agent equipment in compliance with
the requirements of the Health Department.
7.3
• (b) The installation and use of chemical feeders shall conform to the following:
1. Chemical feeders shall be installed downstream from the filter and heater.
Erosion -type feeders shall be allowed to feed their solution to the suction side of the pump.
2. A Chemical feeder shall be installed so it introduces the gas or solution downstream
from the heater and, if possible, at a position lower than the heater outlet fitting.
3. Chemical feeders and pumps shall be wired so they cannot operate unless the filter
pump is running. If the chlorinator has an independent timer, the filter and chemical feed pump
timers shall be interlocked.
(c) Low Ozone Output Generating Equipment. The installation of ozone generating
equipment shall be limited to low ozone output generating equipment. The installation and use
of ozone generating equipment shall conform to the following:
1. Installation of ozone generating equipment shall allow for indications of operation or
malfunction to be easily observed. The equipment shall be installed in a manner such that a
malfunction will not endanger operators or pool users.
2. Ozone generating equipment shall be used in conjunction with other chemical
treatments. Normal maintenance and monitoring of water chemistry shall be followed.
• 3. Good engineering practices and manufacturer's recommendations shall be used to
determine where and how ozone shall be injected.
(d) Every public and semi- public pool shall be supplied with a chemical test kit for the
determination of pH, chlorine or bromine residuals, cyanuric acid (if used), total alkalinity, and
calcium hardness.
Safety
Sec. 716.(a) Handholds shall conform to the following:
1. A public pool shall be provided with a suitable handhold around its perimeter in areas
where depths exceed three feet six inches (3'6 "). Handholds shall consist of any one (1) or a
combination of the items listed below:
A. Coping, ledge, or deck along the immediate top edge of the pool which proivdes a
slip- resisting surface of at least four inches (4 ") minimum horizontal width and located at or not
more than twelve inches (12 ") above the waterline; or
B. Ladders, stairs, or seat ledges; or
C. A rope or railing placed not mere than twelve inches (12 ") above the waterline and
secured at not more than four foot intervals to the wall of the pool.
74
(b) Depth markers shall conform to the following:
•
1. The depth of water in feet shall be plainly and conspicuously marked at or above the
waterline on the vertical pool wall and on the top of the coping or edge of the deck or walk next
to the pool.
A. Depth markers on the vertical pool wall shall be positioned to be read from the water
side.
B. Depth markers on the deck shall be within eighteen inches (18 ") of the water edge
and positioned to be read while standing on the deck facing the water.
4. Depth markers in or on the deck surfaces shall be slip- resisting.
5. There shall be a minimum of two (2) depth markers per pool, regardless of pool size
or shape, spaced at not more than twenty -five (25) foot intervals uniformly located around the
perimeter of the pool.
6. Depth markers shall be installed at intermediate increments of water depth not to
exceed two feet (2') nor spaced at distances greater than twenty -five foot (25') intervals.
7. Depth markers shall have a four inch (4 ") minimum height. Numbers shall be of
. contrasting color to the background on which they are applied, and the color shall be of a
permanent nature.
Barriers and Enclosures
Sec. 717.(a) Outdoor public and semi - public swimming pools shall be provided with an
enclosure and barrier meeting the following requirements:
1. Enclosure and barrier means a fence, wall or barrier of durable material of which the
pool itself may be constructed, or any combination thereof.
2 Barriers and enclosures shall be not less than six feet in height for Class A and B
pools and five feet in height for Class C and D pools.
3. No opening in a barrier or enclosure shall allow passage of a sphere larger than 4
inches.
4. The vertical distance between the bottom of a barrier or enclosure and the finished
grade or walking surface shall not exceed 4 inches.
5. The barrier or enclosure shall be constructed so as not to provide opportunity for
climbing on the side opposite the swimming pool.
• 6. The space on the outside of the enclosure which falls within the area described by a
radius equal in length to the height of the enclosure and centered at the top of the enclosure, must
75
be maintained free of all natural or man made objects which could be used to gain access into the
enclosure.
411
7. All Gates shall have the same height as required in 717(a)2 for the type of pool and
be self - closing and self - latching, with the latch at least 54" above the walking surface. Gates in a
barrier and enclosure shall be installed to swing in a direction opposite the pool.
8. The enclosure may be limited to the pool area alone, or the area enclosed may also
include the pool's ancillary facilities as part of the enclosure, provided that any doors or gates
entering these ancillary facilities from outside the enclosure are equipped and sized as described
above. General offices, recreation rooms, laundry facilities, etc., are not considered as ancillary
facilities to the pool.
Dressing Facilities for Class A and B Swimming Pools
Sec. 718. Dressing and sanitary facilities shall be provided and be approved by the
Health Department, prior to the issuance of a permit..
Visitor and Spectator Area
Sec. 719.(a) There shall be separation between the spaces used by visitors and
spectators in street clothes and those spaces used by users. The visitor and spectator area may be
• within the pool perimeter enclosure if it is in a separate area segregated from the space used by
users.
2. Separate toilets shall be provided for spectators.
Operation and Management
Sec. 720.(a) Public pools shall be maintained under the supervision and direction of a
properly trained operator who shall be responsible for the sanitation, safety, and proper
maintenance of the pool, and all physical and mechanical equipment and records as required by
the Health Department.
(b) Rules and regulations for users shall be posted in a conspicuous place to inform pool
patrons.
(c) The user load limit shall be conspicuously posted.
Operating Permits
Sec. 721. A public pool shall not operate until such time as the appropriate application
has been submitted to the Health Department on the prescribed forms and a valid operating
permit has been issued by the Health Department. The permit shall be renewed annually.
•
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Chapter 8
• PUBLIC AND SEMI - PUBLIC SPAS
Scope
Sec. 801.(a) This chapter is intended to cover public and semi - public spas to be used for
bathing and operated by an owner, licensee, or concessionaire, regardless of whether a fee is
charged for use.
1. This chapter is intended to cover certain aspects of the design, equipment, operation,
installation, new construction and rehabilitation of spas. This code may be met notwithstanding
certain variations in equipment, materials, and design.
(b) This chapter is not meant to cover hot tubs, permanently installed residential spas,
portable spas, or other spas, such as those operated for medical treatment, physical therapy, or
other special purposes.
(c) other standards are referenced in this chapter for items not covered.
Materials of Construction
Sec. 802. Spas and all appurtenances thereto shall be constructed of materials which are
• nontoxic to man and the environment; which are impervious and enduring; which can withstand
the design stresses; and which will provide a watertight structure with a smooth and easily
cleaned surface without cracks or joints, excluding structural joints, or to which a smooth easily
cleaned surface finish is applied or attached.
Structural Design
Sec. 803.(a) Prior to construction, rehabilitation, or alteration of a permanently installed
public or semi - public spa, plans and specifications, as required by Section 110 of this code, shall
be submitted to the building official for review, approval, and issuance of a permit to construct or
rehabilitate or alter. All plans and specifications shall have first been reviewed and approved by
the Health Department.
(b) The structural design and materials used shall be in accordance with generally
accepted good structural engineering practices.
(c) Sand or earth shall not be permitted as an interior finish in a spa.
(d) In climates subject to freezing temperatures, the spa shell and appurtenances, piping,
filter system, pump and motor, and other components shall be so designed and constructed to
facilitate protection from damage due to freezing.
• (e) The surfaces within the spa intended to provide footing for users shall be designed to
provide a slip- resisting surface. The roughness or irregularity of such surfaces shall not cause
injury or discomfort to the feet during normal use.
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(f) The colors, patterns, or finishes of the spa interior shall not be such as to obscure the
existence or presence of objects or surfaces within the spa.
(g) The spa shall be built in compliance with the plans as approved unless subsequent
written approval of changes has been given by the building official.
(h) The spa owner or agent shall notify the building official at specific, predetermined
stages of construction, and at the time of completion of the spa, to permit inspections.
Dimensional Design
Sec. 804.(a) No limits are specified for the shape of spas except that consideration shall
be given to shape from the standpoint of safety and circulation of the spa water.
1. There shall be no protrusions, extensions, means of entanglement, or other obstructions
in the bathing area which can cause the entrapment or injury of the user.
2. The designed waterline shall have a maximum construction tolerance at the time of
completion of the work of a plus or minus one -fourth inch (+ ") for spas with adjustable weir
surface skimming systems, and a plus or minus one - eighth inch (± 1/8") for spas with
f nonadjustable surface skimming systems.
3. There shall be a construction tolerance on all other dimensional designs. Overall
dimensions may vary plus or minus two inches (± 2 ") unless otherwise specified.
(b) The maximum water depth shall be four feet (4') measured from the waterline.
Exceptions may be made for spas designed for a special purpose.
(c) Multi -level seating may be provided, but the maximum water depth of any seat or
sitting bench shall be thirty inches (30 ") measured from the waterline.
(d) The slope of the floor shall not exceed one foot in twelve feet (1:12) vertical to
horizontal.
(f) Steps, seats, ladders or recessed treads shall be provided for entry and exit where water
depths are greater than twenty -four inches (24").
1. Spas shall be equipped with at least one handrail (or ladder equivalent) for each fifty
feet (50') of perimeter, or portion thereof, to designate the point of entry and exit.
(g) The design and construction of spa steps, recessed steps, and seat benches, where
used, shall conform to the following:
• 1. Step treads shall have a minimum unobstructed horizontal depth of ten inches (10 ") for
a minimum continuous width of twelve inches (12 "). Step treads shall have slip - resisting
surfaces.
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2. Riser heights shall not be less than seven inches (7 ") nor greater than twelve inches
(12 "). Where the bottom tread serves as a bench or seat, the bottom riser may be a maximum of
fourteen inches (14 ") above the spa floor.
3. The first and last risers need not be uniform but shall comply with riser height
requirements as noted above. The first (top) riser is measured from the finished deck.
4. Intermediate risers, those between the first and last risers, shall be uniform in height.
5. Each set of steps shall be provided with at least one (1) handrail to serve all treads and
risers.
A. Handrails shall be installed in such a way that they shall be removed only with tools.
B. The leading edge of a handrail in the spa shall be no more than eighteen inches (18")
plus or minus three inches (+ 3 ") horizontally from the vertical plans of the bottom riser (where
applicable).
6. Seats or benches may be provided as part of the steps.
(h) The design and construction of spa ladder(s), where used, shall conform to the
following:
• 1. Spa Ladder()
s shall be made entirely of corrosion- resisting materials.
2. Ladder treads shall have slip- resisting surfaces.
3. Ladder(s) shall provide two (2) handholds/handrails.
4. The outside diameter of a ladder rail shall be between one inch (1") and two and a
quarter inches (2.25 ").
5. Below the water level, there shall be a clearance of not more than six inches (6 ") nor
less than three inches (3 ") between any ladder, tread edge, measured from the spa wall side of the
tread, and the spa wall.
6. The clear distance between ladder handrails shall be a minimum of seventeen inches
(17 ") and a maximum of twenty -four inches (24 ").
(i) The design and construction of recessed treads, where provided, shall conform to the
following:
1. Recessed treads at the centerline shall have a uniform vertical spacing of twelve inches
(12 ") maximum and seven inches (7 ") minimum.
2. The vertical distance between the spa coping edge, deck, or step surface and the
uppermost recessed tread shall be a maximum of twelve inches (12 ").
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3. Recessed treads shall have a minimum depth of five inches (5 ") and a minimum width
• of twelve inches (12').
4. Recessed treads shall drain into the spa to prevent the accumulation of dirt and shall be
slip- resisting.
5. Each set of recessed treads shall be provided with a set of
handrails /grabrails/handholds to serve all treads and risers.
Decks and Deck Equipment
Sec. 805.(a) These requirements shall be for decks and deck equipment used by users and
shall apply at the time of construction.
1. Deck(s) shall be designed and installed in accordance with the engineering practices
required in the area of installation. This includes the design and quality of subbase when
required, concrete mix design, reinforcing, joints, etc.
2. Decks, ramps, coping, and similar step surfaces shall be slip- resisting and easily
cleanable.
3. Special features in or on deck(s) such as markers, brand insignias or similar shall
conform to this article.
• 4 Risers for steps for the deck shall be uniform and have a minimum height of three and
three- fourths inches (3 -3/4 ") and a maximum height of seven (7 "). The minimum tread depth
shall be eleven inches (11").
5. The minimum slope of the deck(s) shall be one - eighth inch per one foot (1/8:1') for
textured, hand - finished concrete decks; one -fourth inch per one foot (1/4":1') for exposed
aggregate concrete decks; and one -half inch per one foot (1/2":1') for indoor /outdoor carpeting
decks, unless an alternate drainage method is provided.
6. The maximum slope of all decks other than wood decks shall be one inch per foot
(1":1') except for ramps. The maximum slope for wood decks shall be one - eighth inch per foot
(1/8":2'). Gaps shall be based on good engineering practices with respect to the type of wood
used.
7. The maximum voids between adjoining concrete slabs, and /or between concrete slabs
and expansion joint material, shall be three - sixteenths inch (3/16 ") of horizontal clearance with a
maximum difference in vertical elevation of one -fourth inch (1/4").
A. Construction joints where spa coping meets concrete deck(s) shall be watertight and
shall not allow water to pass to the ground beneath.
B. The areas where the deck(s) join spa coping shall be designed and installed so as to
• protect the coping and its mortar bed from damage as a result of reasonable movement of
adjoining deck(s).
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C. Joints in deck(s) shall be provided to minimize the potential for cracks due to a change
in elevations, separation of surfaces, or movement of the slab.
•
D. The areas where deck(s) join concrete work shall be protected by expansion joints to
protect the spa adequately from the pressures of relative movements.
E. Deck(s) shall be edged, have a radius, or be otherwise relieved to eliminate sharp
corners.
F. Deck(s) shall be sloped to effectively drain either to perimeter areas or to deck drains.
Drainage shall remove spa splash water, deck cleaning water, and rain water without leaving
standing water.
G. Site drainage shall be provided so as to direct all perimeter deck drainage as well as
general site and roof drainage away from the spa. When required, yard drains shall be installed
to prevent the accumulation or puddling of site water in the general area of the deck(s) and
related improvements.
8. If used, an open pit or leaching design for backwash sump purposes shall be located so
that it falls completely below adjacent deck(s) and fully outside a line projected 45_ downward
and away from such deck(s), or shall be designed to accommodate local soil conditions and the
volume of backwash.
• 9. Circulation system piping, other than that integrally included in the manufacture of the
spa, shall be subject to an induced static hydraulic pressure test (sealed system) at twenty -five
(25) pounds per square inch (psi) for thirty (30) minutes. This test shall be performed before the
deck is poured, and the pressure shall be maintained through the deck pour. For premolded spas,
a normal operational running test may be provided in lieu of a pressure test.
10. Valves installed in or under any deck(s) shall provided with a minimum ten inches
(10 ") diameter access cover and valve pit to facilitate servicing.
11. A hose bibb with a vacuum breaker shall be provided for washing down the entire
deck area.
Circulation Systems
Sec. 806.(a) A circulation system consisting of pumps, piping, return inlets and suction
outlets, filters, and other necessary equipment shall be provided for complete circulation of water
through all parts of the spa.
1. The equipment shall be of adequate size to turn over the entire spa water capacity at
least once every thirty (30) minutes. The system shall be designed to give the proper turnover
rate based on the manufacturer's recommended maximum pressure flow of the filter, in clean
media condition of the filter. Water clarity shall be maintained as required by the health
department.
•
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2. Circulation system components which require replacement or servicing shall be
accessible for inspection, repair, or replacement and shall be installed according to the
• manufacturer's instructions.
3. Materials and equipment used in the circulation system shall comply with the
Nationally recognized standards.
4. Spa equipment shall be properly supported to prevent damage from misalignment,
settlement, etc. The equipment shall be mounted so as to minimize the potential for the
accumulation of debris and moisture, following manufacturer's instructions.
(b) The water velocity in the spa piping shall not exceed ten feet (10') per second for
discharge piping (except for copper pipe where the velocity should not exceed eight feet (8') per
second), and six feet (6') per second for suction piping, unless summary calculations are provided
to show that the greater flow is possible with the pump and piping provided. Spa piping shall be
sized to permit the rated flows for filtering and cleaning without exceeding the maximum head of
the pump.
(c) The circulation system piping and fittings shall be nontoxic, shall be considered to be
process piping, and shall be of material able to withstand operating pressures and operating
conditions.
1. Spa piping subject to damage by freezing shall have a uniform slope in one direction
• equipped with valves for adequate drainage. Spa piping shall be supported at sufficient intervals
to prevent entrapment of air, water, or dirt. Provisions shall be made for expansion or
contraction of pipes.
2. Equipment shall be designed and fabricated to drain the spa water from the equipment,
together together with exposed face piping, by removal of drain plugs and manipulating valves, or by
other means. Refer to manufacturer's recommendations for specific information on draining the
system.
(d) A pressure or vacuum gauge or other means of indicating system condition shall be
provided in the circulation system in an easily readable location. As required in section 7080).
1. Public spas shall be provided with an indicator measuring the rate of flow through the
filter system with an appropriate range readable in gallons per minute and accurate within ten
(10) percent actual flow.
(e) The circulation system shall be capable of maintaining water clarity and water
chemistry requirements. Time clocks may be used to set the operating period. When time clocks
are used, they shall also govern the operating time of appurtenant devices such as
chemical /disinfectant feeders, slurry feeders, heaters, etc. that are dependent upon circulation
pump flow.
• (f). Operation and maintenance instructions shall be provided for the circulation system.
Filters
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Sec. 807.(a) Filters shall be designed so that after cleaning per manufacturer's instructions
• the system can provide the water clarity noted in Section 806.(a)1.
1. Filters shall be designed so that filtration surfaces can be inspected and services.
(b) On pressure -type filters, a means shall be provided to permit the release of internal
pressure.
1. Any filter incorporating an automatic internal air release as its principal means of air
release shall have lids which provide a slow and safe release of pressure as a part of its design.
2. Any separation tank used in conjunction with any filter tank shall have a manual means
of air release or a lid which provides a slow and safe release of pressure as it is opened as a part
of its design.
(c) Pressure filters and separation tanks shall have operation and maintenance instructions
permanently installed on the filter or separation tank and shall include a precautionary statement
warning not to start up the system after maintenance without first opening the air release and
proper reassembly of the filter and separation tank. The statement shall be visible and noticeable
within the area of the air release.
(d) Piping furnished with the filter shall be of suitable material capable of withstanding
Eh one and one -half (1 ) times the working pressure. The suction piping shall not collapse when
there is a complete shutoff of flow on the suction side of the pump.
Pumps and Motors
Sec. 808.(a) A pump and motor shall be provided for circulation of the spa water.
Performance of all pumps shall meet or exceed the conditions of flow required for filtering and
cleaning (if applicable) the filters against the total dynamic head developed by the complete
system.
(b) With all pressure filter systems, a cleanable strainer or screen shall be provided
upstream of the circulation pump(s) to remove solids, debris, hair, lint, etc.
(c) Pump(s) and motor(s) shall be accessible for inspection and service.
(d) The design and construction of the pump(s) and components parts shall provide safe
operation.
(e) Where a mechanical pump seal is provided, components of the seal shall be
corrosion- resisting and capable of operating under conditions normally encountered in spa
operation.
(f) All motors shall have as a minimum an open, drip -proof enclosure and be constructed
electrically and mechanically to perform satisfactorily and safely under the conditions of load and
• environment normally encountered in swimming spa installations.
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•
(g) Motor(s) shall be capable of operating the pump under full load with a voltage
variation of plus or minus_ ten ( +10) percent from the nameplate rating. If the maximum service
• factor of the motor is exceeded (at full voltage) the manufacturer shall indicate this on the pump
curve.
(h) All motors shall have thermal or current overload protection, either built in or in the
line starter to provide locked rotor and running protection.
(i) When the pump is below the waterline valves shall be installed on permanently
connected suction and discharge lines, located in an accessible place outside the walls of the spa,
where they shall be readily and easily accessible for maintenance and removal of the pump.
(j) Pressure and vacuum gauges shall be installed on all public spas.
1. The vacuum gauge shall be installed as close to the pump return inlet as possible and
still maintain an accurate reading.
2. The pressure gauge shall be installed on the face piping ahead of the filter or on top of
the filter in the area of greatest filter pressure.
Return Inlets and Suction Outlets
Sec. 809.(a) Return inlet(s) and suction outlet(s) shall be provided and arranged to
produce a uniform circulation of water and maintain a uniform disinfectant residual throughout
the spa. Where skimmers are used, the return inlet(s) shall be located so as to help bring floating
particles within range of the skimmers.
1. Return inlet(s) from the circulation system shall be designed so as not to constitute a
hazard to the bather.
(b) The spa shall not be operated if the outlet grate is missing, broken or secured in such a
way that it can be removed without the use of tools.
(c) If the suction outlet system, such as a filtration system, automatic cleaning system,
solar system etc., has a single suction outlet, or multiple suction outlets which can be isolated by
valves, each suction outlet shall conform to International Association of Plumbing and
Mechanical Officials Standard ANSI /ASME Al 12.19 8M -1987 to protect against bather
entrapment by either:
1. An approved safety cover.
2. A twelve inch by twelve inch (12" x 12 ") or larger grate.
3. Other approved means.
(d). A minimum of two (2) suction outlets shall be provided for each pump in the suction
• outlet system, separated by a minimum of three feet (3') or located on two (2) different planes;
i.e. one (1) on the bottom and one (1) on the vertical wall, or two (2) separate vertical walls.
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These suction outlets shall be plumbed such that water is drawn through them simultaneously
through a common line to the pump.
Surface Skimmer System
Sec. 810.(a) A surface skimming system shall be provided on all public spas, and shall be
designed and constructed to skim the spa surface when the water level is maintained within the
operational parameters of the system's rim or weir device.
(b) Skimming devices shall be designed and installed so as not to constitute a hazard to
the user.
(c) Where automatic surface skimmers system are used as the sole overflow system, at
least one (1) surface skimmer shall be provided for each one hundred fifty (150) square feet, or
fraction thereof, of water surface area. Nominal recessed areas such as stairs shall not be
considered in the calculation.
(d) Where perimeter surface skimming systems are used, they shall be connected to the
circulation system with a system surge capacity of not Iess than two and one half (2 ) gallons for
each square foot of spa surface. -
1. Where perimeter surface skimming systems are used, they shall be calculated to the
• circulation system with a system surge capacity of not less than one (1) gallon for each square
foot of spa surface.
(e) The hydraulic capacity of the overflow system shall be capable of handling one
hundred (100) percent of the circulation flow.
Air Induction System
Sec. 811.(a) Any air induction system shall prevent water back -up that could cause
electrical shock hazards.
(b) Air intake sources shall not induce water, dirt or contaminants into the spa.
(c) Air induction systems shall be installed in accordance with manufacturer's
instructions.
Electrical Requirements
Sec. 812. The requirements of the National Electrical Code (NEC), as published by the
National Fire Protection Association, amended and adopted by the jurisdiction, shall be used.
Heaters
1111
Sec. 813.(a) Spas heaters shall be tested by a nationally recognized testing agency and
comply with the appropriate current nationally recognized standards.
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(b) The heater(s) shall be installed according to the manufacturer's recommendations and
• the following:
1. The heater shall be installed on a concrete (or equivalent) base unless it is specifically
designed for installation on a combustible surface.
2. Adequate clearances shall be maintained on all sides and over the top of the heater, as
shown in the manufacturer's instructions.
3. The heater shall have adequate ventilation in order to assure proper combustion.
4. When installing a heater indoors, the heater shall be installed in accordance with the
Mechanical Code as amended and adopted by the jurisdiction, and the manufacturer's
recommendation for properly sized air openings to the enclosure.
A. Draft or venting devices shall be installed according to the manufacturer's
recommendations and shall not be modified.
B. A heater using propane gas shall not be installed in a pit or basement. Whenever
installing a heater using propane gas, the manufacturer's instructions shall be followed.
(c) Heater Piping System:
• 1. The heater pP
as supply piping shall comply with the Plumbing Code as amended and
g g
adopted by the administrative authority. When installing a gas -fired heater, the gas line shall be
run from the gas meter as directly as practical.
2. The heater circulation system shall comply with the manufacturer's recommendations.
3. The water piping system shall be installed according to the manufacturer's
recommendations.
A. When installing a heater and a filter system, adequate provisions shall be made so that
the heater does not cause excessive pressure drop to the filter system. Refer to manufacturer's
requirements and /or recommendations for installation of bypass valves.
Water Supply
•
Sec. 814.(a) The water supply serving the spa, which may come from a variety of
sources, shall meet the requirements of the Health Department (see Appendix B included for
reference only) before the user uses the spa.
(b) No direct mechanical connection shall be made between the potable water supply and
the spa, chlorinating equipment, or the system of piping for the spa, unless it is protected against
• backflow and back - siphonage in a manner approved by the building official, or through an air
gap approved, or other equivalent means approved by the building official.
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(c) An over - the -rim spout, if used, shall be properly shielded so as not to create a hazard.
411 Its open end shall have no sharp edges and shall not protrude more than two inches (2 ") beyond
the edge of the spa.
Waste Water Disposal
Sec. 815. . Backwash water shall be disposed of and contained on site. All discharges
of backwash water shall comply with applicable Town ordinances and Arizona Department of
Environmental Quality (ADEQ) Engineering bulletins. Pools /Spas may be drained to the street
when the the water being discharged is chlorine free, at a Ph of 7 plus or minus.5, and no known
biological hazards are present. Any stain or residue resulting from water disposal shall be
removed by rinsing with potable water or other approved means. Water may be discharged to a
wash when the above criteria are met and with measures to prevent erosion of the wash bank or
channel.
Disinfectant Equipment and Chemical Feeders
Sec. 816.(a) Disinfectant equipment and chemical feeders, hereafter referred to jointly as
"equipment" shall comply with the requirements of nationally recognized standards. The
disinfecting equipment shall be capable of precisely introducing a sufficient quantity of an
approved disinfecting agent to maintain the appropriate levels as required by the Health
Department (see Appendix B included for reference only).
• 1. Every spa shall be required to have disinfectant agent equipment in compliance with
the requirements of the Health Department.
(b) The installation and use of chemical feeders shall conform to the following:
1. Chemical feeders shall be installed downstream from the filter and heater.
Erosion -type feeders shall be allowed to feed their solution to the suction side of the pump.
2. A Chemical feeder shall be installed so it introduces the gas or solution downstream
from the heater and, if possible, at a position lower than the heater outlet fitting.
3. Chemical feeders and pumps shall be wired so they cannot operate unless the filter
pump is running. If the chlorinator has an independent timer, the filter and chemical feed pump
timers shall be interlocked.
(c) Low Ozone Output Generating Equipment. The installation of ozone generating
equipment shall be limited to low ozone output generating equipment. The installation and use
of ozone generating equipment shall conform to the following: •
1. Installation of ozone generating equipment shall allow for indications of operation or
malfunction to be easily observed. The equipment shall be installed in a manner such that a
malfunction will not endanger operators or spa users.
2. Ozone generating equipment shall be used in conjunction with other chemical
treatments. Normal maintenance and monitoring of water chemistry shall be followed.
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3. Good engineering practices and manufacturer's recommendations shall be used to
• determine where and how ozone shall be injected.
Safety
Sec. 817.(a) Handholds shall conform to the following:
1. A public spa shall be provided with a suitable handhold around its perimeter in areas
where depths exceed three feet six inches (3'6 "). Handholds shall consist of any one (1) or a
combination of the items listed below:
A. Coping, ledge, or deck along the immediate top edge of the spa which proivdes a
slip- resisting surface of at lest four inches (4 ") minimum horizontal width and located at or not
more than twelve inches (12 ") above the waterline; or
B. Ladders, stairs, or seat ledges; or
C. A rope or railing placed not more than twelve inches (12 ") above the waterline and
secured at not more than four foot intervals to the wall of the spa.
(b) Depth markers shall conform to the following:
• 1. The depth of water in feet shall be plainly and conspicuously marked at or above the
waterline on the vertical spa wall and on the top of the coping or edge of the deck or walk next to
the spa.
A. Depth markers on the vertical spa wall shall be positioned to be read from the water
side.
B. Depth markers on the deck shall be within eighteen inches (18 ") of the water edge and
positioned to be read while standing on the deck facing the water.
2. Depth markers in or on the deck surfaces shall be slip- resisting.
3. There shall be a minimum of two (2) depth markers per spa, regardless of spa size or
shape, spaced at nor more than twenty -five (25) foot intervals uniformly located around the
perimeter of the spa.
4. Depth markers shall have a four inch (4 ") minimum height. Numbers shall be of
contrasting color to the background on which they are applied, and the color shall be of a
permanent nature.
Barriers and Enclosures
• Sec. 818.(a) Outdoor public and semi- public spas shall be provided with an enclosure
and barrier meeting the following requirements:
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1. Enclosure and barrier means a fence, wall or barrier of durable material of which the
pool itself may be constructed, or any combination thereof.
2 Barriers and enclosures shall be not less than six feet in height for public spas and five
feet in height for semi - public spas.
3. No opening in a barrier or enclosure shall allow passage of a sphere larger than 4
inches.
4. The vertical distance between the bottom of a barrier or enclosure and the finished
grade or walking surface shall not exceed 4 inches.
5. The barrier or enclosure shall be constructed so as not to provide opportunity for
climbing on the side opposite the spa.
A. Footholds or handholds shall be not less than 48 inches from the top of the enclosure
or 48 inches from the finished grade, or other walking surface measured on the side opposite the
spa. Openings in chain -link fences, exceeding 1 inches, shall be slatted.
B. Wrought iron or wood barriers or enclosures shall be constructed with at least 48
inches between the top surface of the horizontal members.
C. Where a protrusion, indention, or top surface is at a continuous angle of inclination
towards the barrier or enclosure equal to 45 degrees above the horizontal and otherwise does not
provide a handhold or foothold, it shall be deemed not to provide an opportunity for climbing, for
purposes of this code.
D. The space on the outside of the enclosure which falls within the area described by a
radius equal in length to the height of the enclosure and centered at the top of the enclosure, must
be maintained free of all natural or man made objects which could be used to gain access into the
enclosure.
6. Gates placed in an enclosure or barrier shall comply with the above. All gates shall be
not less than five feet in height and be self - closing and self - latching, with the latch at least 54"
above the walking surface. Gates in a barrier and enclosure shall be installed to swing in a
direction opposite the spa.
7. The enclosure may be limited to the spa area alone, or the area enclosed may also
include the spa's ancillary facilities as part of the enclosure, provided that any doors or gates
entering these ancillary facilities from outside the enclosure are equipped and sized as described
above. General offices, recreation rooms, laundry facilities, etc. are not considered as ancillary
facilities to the spa.
Dressing Facilities
Sec. 819. Dressing and sanitary facilities shall be provided and be approved by the
Health Department, prior to the issuance of a permit.
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Operation and Management
i
Sec. 820.(a) Public spas shall be maintained under the supervision and direction of a
properly trained operator who shall be responsible for the sanitation, safety, and proper
maintenance of the spa, and all physical and mechanical equipment and records as required by
the Health Department.
(b) Rules and regulations for users shall be posted in a conspicuous place to inform spa
patrons.
(c) The user load limit shall be conspicuously posted.
Operating Permits
Sec. 821. A public spa shall not operate until such time as the appropriate application has
been submitted to the Health Department on the prescribed forms and a valid operating permit
has been issued by the Health Department. The permit shall be renewed annually.
•
•
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