8130.18. - AMENDMENT.

Volume 1, Chapter 15, Section 1512.1 in the 2025 California Building Code is amended to read as follows due to local climatic conditions:

1512.1 General. All reroofing shall conform to the applicable provisions of Chapter 15 of this Code and as otherwise required in this Chapter.

Roofing materials and methods of application shall comply with the Building Code standards or shall follow manufacturer's installation requirements when approved by the Building Official.

Roof coverings installed on existing buildings or structures shall require the submission of design calculations and plans prepared by an engineer or architect licensed by the State of California when the total installed weight of the finish roof covering material above the wood structural panels and underlayment is equal to or exceeds 6 pound per square foot. The design calculations shall demonstrate that the entire building or structure is adequate to support the vertical forces imposed by the new roofing.

Reroofs in the Wildland Interface Fire Area Boundaries. All reroofing in Wildland Interface Fire Area Boundaries of the City shall comply with Section 1505. The entire roof covering of an existing building or structure located in said zone shall be made to comply with Section 1505 when the cumulative roof area of

any addition, alteration, replacement, repair, or reroof made during the previous 12 months to the existing roof is 25 percent or more of the original roof area.

Reroofs in areas outside the Wildland Interface Fire Area Boundaries. All reroofing in areas outside the Wildland Interface Fire Area Boundaries of the City shall comply with the following, as applicable:

1.

25% Or Less. Up to 25 percent of an existing structure or building may be reroofed with a roof covering that matches the existing, providing the cumulative roof area of any addition, alteration, replacement, repair, or reroof made during the previous 12 months to the existing roof does not exceed 25% of the original roof area.

2.

Over 25% But Less Than 50%. The roof covering of the area being reroofed shall comply with Section 1505. The roof covering of the existing structure or building being reroofed may be left in place providing the cumulative roof area of any addition, alteration, replacement, repair or reroof made during the previous 12 months to the existing roof is over 25 percent but less than 50 percent of the original roof area.

3.

50% Or More. An existing building or structure shall be completely reroofed with a roof covering complying with Section 1505 when the cumulative roof area of any addition, alteration, replacement, repair, or reroof made during the previous 12 months to the existing roof is 50 percent or more of the original roof area.

(Ord. No. 2366, § 3, 12-17-19; Ord. No. 2394, § 3, 11-15-22; Ord. No. 2408, § 3, 11-18-25)

8130.19. - AMENDMENT [ADMINISTRATIVE].

Section 1010.3.4. of Chapter 10 of the 2025 California Building Code is hereby amended to read as follows:

1010.3.4. Security Grilles. The use of security bars, panels, sliding metal grates, or other similar security devices is prohibited on the exterior of any building openings of all structures in commercial or industrial zones of the City. Subject to obtaining a permit pursuant to California Building Code Section 105.1 and compliance with design review requirements pursuant to Arcadia Municipal Code Sections 9295 et seq. as a prerequisite to the granting of any such permit, security bars, panels, gates, metal grates, or other similar security devices may be installed, in compliance with applicable Building Code requirements, on the interior of a commercial or industrial structure provided that the entire building is equipped with an automatic fire sprinkler system, which has been installed under a permit from the Building Division and inspected pursuant thereto for compliance with the approved plans.

(Ord. No. 2366, § 3, 12-17-19; Ord. No. 2394, § 3, 11-15-22; Ord. No. 2408, § 3, 11-18-25)

8130.20. - ADDITION [ADMINISTRATIVE].

Chapter 35A is added to Volume 2 of the 2025 California Building Code due to climatic and geographical conditions.

CHAPTER 35A

MULTIPLE FAMILY CONSTRUCTION STANDARDS

SECTION 3501A - MULTIPLE FAMILY DEFINED

A multiple family building shall be defined as one or more dwelling units located on any property in the City except the R-O, R-1 or the R-M zoned areas.

3501.1A Application. Except where a more restrictive requirement in the California Building Code, State Law or City Ordinance is applicable, each provision of this Chapter shall apply to each multiple family building as defined herein.

SECTION 3502A. NOISE REDUCTION STANDARDS

3502.1A General. Attached multiple family dwelling units shall meet the sound transmission control standards specified in Appendix Chapter 12 of the Building Code and this Section.

3502.2A Packing of Voids. All voids surrounding water, drainage, and vent piping shall be packed with rock wool or equivalent approved sound deadening material, and all water, drainage, and vent piping shall be wrapped with an approved material at all points of contact with wood or steel framing members and strap hangers. Plumbing walls shall be a minimum of 2 inch by 6-inch construction.

3502.3A Plans. All required 2 inch by 6-inch plumbing walls shall be clearly identified on the building plans.

3502.4A Mechanical Equipment. All mechanical equipment shall be installed so as to reduce sound transmission to a minimum.

3502.5A Separation of Facilities. Electrical, plumbing and mechanical equipment or systems serving one dwelling unit shall not serve other dwellings units, nor shall such equipment or systems be located within another dwelling unit. Recessed wall fixtures, such as medicine cabinets or electrical, telephone, television and intercom outlets, shall not be located back-to-back or in the same wall cavity.

3502.6A Location of Plumbing and Ducts. Water, drainage, and vent piping and heating and air conditioning ductwork shall not be located within any wall or floor-ceiling sound assembly.

SECTION 3503A. COMFORT COOLING SYSTEM

A comfort cooling system shall be provided for each multiple family dwelling unit. The comfort cooling system shall be capable of maintaining a temperature of 78 degrees Fahrenheit three feet above the floor throughout the conditioned space of the building. Water evaporative cooling systems or individual window or wall-mounted units shall not be used to meet the requirements of this Section. The location of the comfort cooling system shall be shown on the building plans.