Section 708 — FIRE PARTITIONS — 2025 California Building Code (Title 24, Part 2)

708.1 General. The following wall assemblies shall comply with this section: ¶

708.1 General. The following wall assemblies shall comply with this section: 1. Separation walls as required by Section 420.2 for Group R occupancies. 2. Walls separating tenant spaces in covered and open mall buildings as required by Section 402.4.2.1. 3. Corridor walls as required by Section 1020.2 and in Group I-2 as required by Section 407.3. 4. Enclosed elevator lobby separation as required by Section 3006.3. 5. Egress balconies as required by Section 1021.2 6. Walls separating ambulatory care facilities from adjacent spaces, corridors or tenants as required by Section 422.2. 7. Walls…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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708.2 Materials. ¶

708.2 Materials. The walls shall be of materials permitted by the building type of construction.

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708.3 Fire-resistance rating. ¶

708.3 Fire-resistance rating. Fire partitions shall have a fire-resistance rating of not less than 1 hour. Exceptions: 1. Corridor walls permitted to have a [1] / 2 -hour fire-resistance rating by Table 1020.2. 2. Dwelling unit and sleeping unit separations in buildings of Types IIB, IIIB and VB construction shall have fire-resistance ratings of not less than [1] / 2 hour in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1. 3. Walls separating enclosed tenant spaces in Group B high-rise buildings of Type I and II construction equipped…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback

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708.4 Continuity. ¶

708.4 Continuity. Fire partitions shall extend from the top of the foundation or floor/ceiling assembly below and be securely attached to one of the following: 1. The underside of the floor or roof sheathing, deck or slab above. 2. The underside of a floor/ceiling or roof/ceiling assembly having a fire-resistance rating that is not less than the fire-resistance rating of the fire partition. Exceptions: 1. Fire partitions shall not be required to extend into a crawl space below where the floor above the crawl space has a minimum 1-hour fire-resistance rating. 7-16 2025 CALIFORNIA BUILDING CODE…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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708.5 Exterior walls. ¶

708.5 Exterior walls. Where exterior walls serve as a part of a required fire-resistance-rated separation, such walls shall comply with the requirements of Section 705 for exterior walls, and the fire-resistance-rated separation requirements shall not apply. Exception: Exterior walls required to be fire-resistance rated in accordance with Section 1021.2 for exterior egress balconies, Section 1023.7 for interior exit stairways and ramps and Section 1027.6 for exterior exit stairways and ramps.

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure

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708.6 Openings. ¶

708.6 Openings. Openings in a fire partition shall be protected in accordance with Section 716.

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708.7 Penetrations. Penetrations of fire partitions shall comply with Section 714. ¶

708.7 Penetrations. Penetrations of fire partitions shall comply with Section 714.

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708.8 Joints. Joints made in or between fire partitions shall comply with Section 715. ¶

708.8 Joints. Joints made in or between fire partitions shall comply with Section 715.

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708.9 Ducts and air transfer openings. ¶

708.9 Ducts and air transfer openings. Penetrations in a fire partition by ducts and air transfer openings shall comply with Section 717.

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