(A) CHAPTER 1 SCOPE AND ADMINISTRATION is amended as follows:
(1) Section 101.1 of the 2018 International Residential Code is amended to read, in its entirety, as follows:
101.1 Title. These regulations shall be known as the Apache Junction Residential Code, hereinafter referred to as “his code.”
(2) Sections 101.2 through 114.2 inclusive are deleted in their entirety. See Vol. I, Chapter 7, Article 7-1, Division of Building Safety and Inspection Administrative Code.
(B) Section R202 DEFINITIONS is amended as follows:
FIRE SEPARATION DISTANCE. The distance measured from the face of the wall framing to one of the following:
1. To the closest interior lot line.
2. To the centerline of a street, an alley or public way.
3. To an imaginary line between two buildings on the lot.
The distance shall be measured at a right angle from the face of the wall framing.
WOODSTOVE. A solid-fuel burning heating appliance including a pellet stove, which is either freestanding or designed to be inserted into a fireplace.
(C) Chapter 3 Building Planning is amended as follows:
(1) Section R301.2.1.1.1 is deleted.
(2) Table R301.2(1) is completed as follows:
GROUND SNOW LOAD: | n/a |
WIND DESIGN: | |
Speed (mph): | 105 |
Topographic effects: | Yes |
Special Wind Region: | No |
Windborne debris zone: | No |
SEISMIC DESIGN CATEGORY: | B |
SUBJECT TO DAMAGE FROM: | |
Weathering: | Negligible |
Frost line depth: | Final grade |
Termites: | Moderate to heavy |
WINTER DESIGN TEMPERATURE: | 34 |
ICE BARRIER UNDERLAYMENT REQUIRED: | No |
FLOOD HAZARDS: See Apache Junction City Code Vol. II, Ch. 5 | |
AIR FREEZING INDEX: | n/a |
MEAN ANNUAL TEMPERATURE: | 69.6°F |
MANUAL J DESIGN CRITERIA | |
Elevation: | 1720 feet |
Latitude: | 33 |
Winter heating: | 34 degrees |
Summer cooling: | 108 degrees |
Altitude correction factor: | |
Indoor design temperature: | |
Design temperature cooling: | 75 degrees |
Heating temperature difference: | |
Cooling temperature difference: | |
Wind velocity heating: | |
Wind velocity cooling: | |
Coincident wet bulb: | 69 degrees |
Daily range: | 30 |
Winter humidity: | |
Winter humidity: |
(3) Section R301.5 Live Load is amended by revising Table R301.5 as follows: Change live load for “Sleeping rooms” from 30 psf to 40 psf, and the live load for Habitable attics and attics with fixed stairs from 30 psf to 40 psf.
MINIMUM UNIFORMLY DISTRIBUTED LIVE LOADS (in pounds per square foot) | |
USE | LIVE LOAD |
Uninhabitable attics without storageb | 10 |
Uninhabitable attics with limited storageb, g | 20 |
Habitable attics and attics served with fixed stairs | 40 |
Balconies (exteriors) and decksb | 40 |
Fire escapes | 40 |
Guards and handrailsd | 200h |
Guard in-fill componentsf | 50h |
Passenger vehicle garagesa | 50h |
Rooms other than sleeping rooms | 40 |
Sleeping rooms | 40 |
Stairs | 40c |
(4) Table 302.1(1) Exterior Walls is amended as follows:
Penetrations | All | Comply with Section R302.4 | < 5 feet |
None required | 5 feet |
Delete footnote b.
(5) Section R302.2.6 is amended by deleting exception 5.
(6) Section R303 LIGHT, VENTILATION AND HEATING is amended as follows:
Section R303.10 is deleted and replaced with the following:
R303.10 Required heating and cooling. Dwellings shall be provided with heating per Section R303.10.1 and cooling per Section R303.10.2.
R303.10.1 Heating
Heating facilities shall be provided, capable of maintaining room temperature at 68°F (20°C) in all habitable rooms, bathrooms and toilet rooms, based on the winter design temperature of 34°F (01°C) for Phoenix, per Appendix D of the International Plumbing Code. Cooking appliances shall not be used to provide space heating to meet the requirements of this section.
Exceptions: Heating systems are not required for:
1. Interior spaces where the primary purpose of the space is not associated with human comfort.
2. Group U occupancies.
R303.10.2 Cooling
Cooling facilities shall be provided, capable of maintaining room temperature at 85°F (29°C) in all habitable rooms, bathrooms and toilet rooms, based on the summer design temperature of 107°F (42°C) for Phoenix, per Appendix D of the International Plumbing Code.
Exceptions: Cooling systems are not required for:
1. Interior spaces where the primary purpose of the space is not associated with human comfort.
2. Group U occupancies.
(7) Section R309.2 Carports is amended by deleting the exception.
(8) Section R313 AUTOMATIC FIRE SPRINKLER SYSTEMS is amended as follows:
R313.2 One- and Two-family dwellings automatic fire sprinkler systems. An automatic residential fire sprinkler system may be installed in one and two-family dwellings using Section P2904 or NFPA 13D for the design.
Delete R313.2.1.
(9) Section R320 Accessibility is amended by adding two new Sections R320.2 and R320.3 to read as follows:
R320.2 No-Step Entrance. At least one (1) model home dwelling unit in every model home complex shall have a no-step entrance to serve as a demonstration of the builder’s method of providing a no-step entry as an option for new home construction. Model dwellings selected to demonstrate this option, and all dwelling units providing this option, shall be served by a route of travel meeting the following requirements:
1. A continuous no-step path connecting each subdivision sales office or public way to an entrance of the unit.
2. A route of travel that consists of a firm stable, and slip-resistant surface with a minimum continuous width of thirty-six inches (36") and a minimum clear height of seven feet (7') above the route.
3. The running slope of such route shall not exceed one to twelve (1:12).
4. A minimum forty-eight inches by forty-eight inches (48" X 48") maneuvering space on the exterior side of the door constructed with less than two percent (2%) slope in any direction.
5. A minimum thirty-two inch (32") clear-opening door with a threshold not exceeding one-half inch.
6. Identification by readily viewable signage.
R320.3 Model Home Sales Office Restrooms. If public restrooms are provided for residential development models, such restroom facilities shall be accessible and shall be provided by either of the following methods:
1. Converting one (1) ground-floor model home restroom into an ADA-accessible unisex facility; or
2. Providing one (1) ADA-accessible unisex portable toilet and hand-washing unit located on an accessible route. The accessible portable toilet facility shall be removed when the Sales Office is permanently closed.
(D) Chapter 4 Foundations is amended as follows:
(1) Table 401.4.1 is amended as follows:
PRESUMPTIVE LOAD-BEARING VALUES OF FOUNDATION MATERIALSa | |
Class of Material | Load-Bearing Pressure (Pounds per Square Foot) |
Crystalline Bedrock | 12,000 |
Sedimentary and Foliated Rock | 4,000 |
Sandy Gravel and/or Gravel (GW and GP) | 3,000 |
Sand, Silty Sand, Clayey Sand, Silty Gravel and Clayey Gravel (SW, SP, SM, SC, GM and GC) | l,500b |
Clay, Sandy Clay, Silty Clay, Clayey Silt, Silt and Sandy Silt (CL, ML, MH and CH) | 1,500b |
(2) Section R403 Footings is amended as follows:
R403.1 General is been amended by adding an exception to read as follows:
Exception: Existing patio and carports, 400 square feet or less, that are enclosed and occupied as livable and/or non-livable areas are not required to provide a continuous exterior footing when the existing load bearing post and beam construction remain in place and a thickened footer or pad are evident under the post.
(E) Chapter 5 Floors is amended as follows:
Section R502.11.4 Truss Design Drawings. Truss design drawings, prepared in compliance with Section 502.11.1, shall be submitted to the building and safety manager and approved prior to permit issuance. (the rest is the same)
(F) Chapter 6 Wall Construction is amended as follows
Add Section R601.2.2 to the end of Section R601.
R601.2.2 Framing Connections. Framing details for bearing walls and posts shall be such that all components are tied together with positive connections to transmit wind uplift forces from the roof to the foundation. Nails loaded in withdrawal by such forces shall not be considered as positive connections.
Approved metal framing anchors shall be provided at the top and bottom of every other stud of a wood-frame bearing wall, except where structural panel sheathing is nailed directly to the studs, top plate and bottom plate in accordance with Table R602.3(1). Floor-to-floor connections shall have approved metal strap ties at a maximum of 48 inches on center, except where justified by an engineered analysis that bears the seal of a registered design professional. Each truss, joist and rafter shall be connected to the top plate of the supporting wall with an approved metal framing anchor or other approved method. The framing anchor shall be of the type that connects to both members of the double top plate. Beams shall be anchored to supporting walls and posts with approved metal framing connectors.
(G) Chapter 8 Roof-Ceiling Construction is amended as follows:
(1) Section R802.10.1. Truss Design Drawings. Truss design drawings, prepared in conformance to Section 802.10.1, shall be provided to the building official and approved prior to permit issuance. (the rest is the same)
(2) Section R806.1 Ventilation is amended by adding the following exception:
Exception: Enclosed attic and rafter spaces are not required to be ventilated where the height between the top of the ceiling material and the bottom of the roof sheathing is no greater than 24 and radiant barrier sheathing is installed at the roof.
(H) Chapter 9 Roof Assemblies is amended as follows:
Section R905.5 Mineral-surfaced roll roofing, is revised by adding the following:
905.5.6 Drip edge.
A drip edge shall be provided at eaves and rake edges. Adjacent segments of drip edge shall overlap at least 2 inches (51 mm). Drip edges shall extend at least 1/4 inch (6.4 mm) below the roof sheathing and extend onto the roof deck at least 2 inches (51 mm). Drip edges shall be fastened to the roof deck not less than 12 inches (305 mm) on center with fasteners specified in Section R905.2.5. Underlayment shall be installed over the drip edge along eaves, and under the drip edge along rake edges.
(I) Chapter 10 Chimneys and Fireplaces is amended as follows:
(1) Section R1001.1 General is amended as follows:
R1001.1 General. Masonry fireplaces shall be constructed in accordance with this section and the provisions of Chapter 3 and 4, and the Apache Junction City Code , Vol. I, Chapter 7 § 7-1-12 STANDARD FOR FIREPLACES, WOOD STOVES AND OTHER SOLID FUEL BURNING DEVICES.
(2) Section R1004.1 General is amended as follows:
R1004.1 General. Factory-built fireplaces shall be listed and labeled and shall be installed in accordance with the conditions of the listing, and the Apache Junction City Code Vol. I, Chapter 7, § 7-1-12 STANDARD FOR FIREPLACES, WOOD STOVES AND OTHER SOLID FUEL BURNING DEVICES. Factory-built fireplaces shall be tested in accordance with UL 127.
(J) Chapter 26 General Plumbing Requirements
Section P2603.5.1 is amended as follows:
P2603.5.1 Sewer depth. Building sewers shall be not less than 12 inches below grade.
(K) Chapter 29 Water Supply and Distribution is amended as follows:
(1) IRC Table P2903.2 MAXIMUM FLOW RATES AND CONSUMPTION FOR PLUMBING FIXTURES AND FIXTURE FITTINGS is amended as follows.
TABLE P2903.2: MAXIMUM FLOW RATES AND CONSUMPTION FOR PLUMBING FIXTURES AND FIXTURE FITTINGSb | |
PLUMBING FIXTURE OR FIXTURE FITTING | MAXIMUM FLOW RATE OR QUANTITY |
Lavatory faucet | 1.5 gpm at 60 psi |
Shower Head3 | 2.0 gpm at 80 psi |
Sink faucet | 2.0 gpm at 60 psi |
Water closet | 1.28 gallons per flushing cycle |
Urinals | 0.5 gallon per flushing cycle |
Add footnotes:
c. A 1.6-gallon flush toilet is permitted where no other fixtures are upstream of the drain line connection.
d. The effective flush volume of a dual-flush water closet is defined as the composite, average flush volume of two reduced flushes and one full flush.
(2) Section P2910 Nonpotable water systems is amended by adding a subsection P2910.1.1 to read as follows:
P2910.1.1 Conflicts. No reference to requirements for gray water recycling systems in this section shall be construed as allowing installations in violation of Arizona Department of Environmental Quality requirements. Where conflicts exist between the requirements of this section and the Arizona Department of Environmental Quality requirements, the Arizona Department of Environmental Quality requirements shall govern.
(L) APPENDIX H PATIO COVERS is amended as follows:
(1) Amend Title to APPENDIX H PATIO ROOMS.
(2) AH101.1 Scope. Patio rooms shall conform to the requirements of Sections AH101 through AH106.
AH101.2 Permitted uses. Patio rooms detached from or attached to dwelling units shall be used only for recreational, outdoor living purposes and not as carports, garages, storage rooms or habitable rooms.
(3) AH102.1 General. The following word and term shall, for the purposes of this appendix, have the meaning shown herein. Refer to Chapter 2 of this code for general definitions.
PATIO ROOM. A structure with open or glazed walls that is used for recreational, outdoor living purposes associated with a dwelling unit.
(4) AH104.1 Height. Patio rooms are limited to one-story structures not exceeding 12 feet in height.
(5) AH105.1 Design loads. Patio rooms shall be designed and constructed to sustain, within the stress limits of the code, all dead loads plus a vertical live load of 10 pounds per square foot (0.48 kN/M2) except that snow loads shall be used where such snow loads exceed this minimum. Such patio rooms shall be designed to resist the minimum wind and seismic loads set forth in Section R301.2.1.
(6) AH105.2 Footings. In areas with a frost depth of zero as specified in Table R301.2(1), for patio rooms supported on a concrete slab-on-grade without footings, the slab shall conform to the provisions of Section R506, shall not be less than 3.5 inches (89 mm) thick, and the columns shall not support live and dead loads in excess of 750 pounds (3.36 kn) per column.
(Am. Ord. 1475, passed 6-19-2019)