Chapter 3 — GENERAL REQUIREMENTS
317 Vegetative and Landscaped Roofs — 2025 California Fire Code
California Fire Code (Title 24, Part 9) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Fire Code (Title 24, Part 9) § 317 · Effective January 1, 2026 · Official source: Building Standards Commission
317.1 General.¶
.Vegetative roofs and landscaped roofs shall comply with Sections 1505 and 1507.15 of the California Building Code and be installed and maintained in accordance with Sections 317.2 through 317.4.
317.2 Vegetation.¶
Vegetation shall be maintained in accordance with Sections 317.2.1 and 317.2.2.
317.2.1 Irrigation. Supplemental irrigation shall be provided to maintain levels of hydration necessary to keep green roof plants alive and to keep dry foliage to a minimum.
317.2.2 Dead foliage. Excess biomass, such as overgrown vegetation, leaves and other dead and decaying material, shall be removed at regular intervals not less than two times per year.
317.3 Maintenance plan.¶
The fire code official is authorized to require a maintenance plan for vegetation placed on roofs due to the size of a vegetative roof or landscaped roof area, materials used or where a fire hazard exists to the building or exposures due to the lack of maintenance.
317.4 Maintenance equipment.¶
Fueled equipment stored on roofs and used for the care and maintenance of vegetation on roofs shall be stored in accordance with Section 313.
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