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Appendix BB — FIRE-FLOW REQUIREMENTS FOR BUILDINGS

Section BB104

California Fire Code (Title 24, Part 9) · 2019 edition · updated 2026-09-10 · California

CBSC: official editions, supplements and errata

Italicized text is a California amendment to the model code, as printed in the official publication.

BB104.1 General. The fire area shall be the total floor area

of all floor levels within the exterior walls, and under the hor- izontal projections of the roof of a building, except as modi- fied in Section 4.

Exceptions & meaning →

BB104.2 Area separation. Portions of buildings which are

separated by one or more 4-hour area separation walls con- structed in accordance with the building code, without open- ings and provided with a 30-inch (762 mm) parapet, are allowed to be considered as separate fire areas.

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BB104.3 Type I and Type IB construction. The fire area of

buildings constructed of Type I and Type IB construction shall be the area of the three largest successive floors.

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▸Contents — California Fire Code (Title 24, Part 9)
California Fire Code (Title 24, Part 9)

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