15.05.050 Adoption of International Residential Code.
A. That certain document entitled and known as “The International Residential Code, 2018 Edition,” published by the International Code Council, together with appendices A, B, C, G, H and J thereto, is hereby adopted as the residential building code of the city of Maricopa and made a part of this chapter the same as though said code was specifically set forth in full herein, with changes and amendments to the code as set forth in this section. An electronic copy of said code shall be filed with the office of the city clerk and kept available for public use and inspection.
B. Amendments to the Residential Building Code.
1. Amend Section R101.1 Title by adding the following in the insert: City of Maricopa.
2. Amend Section R105.2 Work exempt from permit by adding a new item 11 as follows:
Patio and Porch covers not exceeding 120 square feet of projected roof area with a maximum depth of 8 feet. Provided such cover:
Is constructed as an addition, uses minimum of 2" x 6" rafter material and 4" x 4" posts with beams securely fastened, and the attached end of rafter is supported by existing bearing wall and not from the fascia, and the proposed roof does not encroach on the required yard setbacks or exceed the allowable lot coverage.
3. Amend Section R108.2 Schedule of permit fees by replacing with the following text:
Building permit fees shall be assessed in accordance with the City of Maricopa Development Services and Fire/Medical Fee Schedule as approved by City Council. For electrical, gas, mechanical, and plumbing systems or alterations requiring a permit, a fee for each permit shall be paid as required, in accordance with the City of Maricopa Development Services and Fire/Medical Fee Schedule as approved by City Council.
4. Amend Section R111 Service Utilities by adding a new subsection as follows:
R111.4 Utility Company Agreement. Inspection of service equipment and related apparatus will be required prior to re-connection of electric power or gas service for all buildings that have been vacant more than six months.
5. Amend Section R202 Definitions: FIRE SEPARATION DISTANCE.
The distance measured from the building face to one of the following:
1. To the closest interior lot line.
2. To the centerline of a street, an alley or a public way.
3. To an imaginary line between two buildings on the lot.
The distance shall be measured at the right angle from the face of the wall framing.
6. Amend Table R301.2(1) Climatic and Geographic Design Criteria by inserting the following:
Ground Snow Load - None
Wind Speed - 90 mph
Seismic Category - C
Weathering - Moderate
Frost line depth - 12"
Termite - Moderate to Heavy
Winter Design Temperature – 32 degrees F
Ice Barrier Underlayment Required – No
Flood Hazards – Per City of Maricopa Flood Administrator
Air Freezing Index – 0
Mean Annual Temperature – 72.9
7. Amend Table R302.1(1):
Projections - Not Fire Resistant Rated – Minimum Fire Separation Distance Change 5 Feet to 4 Feet.
C. Amend Section R303.10 Required heating by revising the title to read “Required Heating and Cooling” and by adding the following sentence to the end of the paragraph:
Every dwelling unit and guest room shall be provided with cooling facilities capable of maintaining a room temperature of not more than 80 degrees F at a point 3 feet above the floor in all habitable rooms under the average local climate conditions.
D. Delete R313 Automatic Fire Sprinkler Systems in its entirety. Refer to A.R.S. § 9-807.
E. Amend Section R318.2 Protection against Subterranean Termites – Chemical termiticide treatment by adding new paragraphs after the last sentence as follows:
Within the perimeter of the foundation of any building which requires a building permit, the base course of all fill which is used to support a concrete slab shall be treated against termite infestation. The soil treatment shall be applied by a duly licensed applicator in accordance with the rules and regulations of the Arizona Structural Pest Control Commission.
Termite retardant chemicals shall be applied prior to placing the concrete. If the soil has been treated and the fill is disturbed prior to pouring the slab, or if the concrete, is not poured within the time limit specified for the chemical used, the soil must be retreated according to the same standards. If a concrete slab has been poured prior to pre-treatment, the site must be treated in accordance with the rules and regulations references herein above.
EXCEPTION: Buildings accessory to Group R, Division 3 and buildings with floors and walls built of metal, masonry, concrete or other non-wood product. Certification of such soil treatment shall be furnished to the Building Official when requested and shall include the name of the applicator, state license number, chemical used, time and location of application and length of warranty.
F. Amend Table N1102.1.1 (R402.1.1) by changing Glazed Fenestration SHGC from 0.25 to 0.40.
G. Amend Section E4201.2 Definitions by changing the references to 42 inches to 24 inches in the definition of “Permanently Installed Swimming and Wading Pools” and in the definition of “Storable Swimming or Wading Pools.” [Code 2004 § 7-1-4-2; Ord. 19-15 § 2; Ord. 18-08 § 1; Res. 18-23.]