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Earlier editions: 20222019

Chapter 8-4 — FIRE PROTECTION

8-408 Roof Covering — 2025 California Historical Building Code

California Historical Building Code (Title 24, Part 8) · 2025 edition · updated 2026-10-19 · California

CBSC: official editions, supplements and errata

Cite as: 2025 California Historical Building Code (Title 24, Part 8) § 8-408 · Effective January 1, 2026 · Official source: Building Standards Commission

Existing or original roofing materials may be repaired or reconstructed subject to the following requirements:

  1. The original or historical roofing system shall be detailed or modified as necessary in order to be capable of providing shelter while preserving the historical materials and appearance of the roof.

FIRE PROTECTION

  1. Wooden roof materials may be utilized where fire resistance is required, provided they are treated with fire-retardant treatments to achieve a Class “B” roof covering rating. Wood roofing in state designated Urban Wildland and High Fire Zones shall be permitted when installed in Class “A” assemblies.
  2. Jurisdictions that prohibit wood roofing materials for application as roof coverings and roof assemblies shall submit documentation for the adoption. Express Terms, statement of reasons and minutes of the action by the adopting authority Health and Safety Code, Section 18959(f).

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▸Contents — California Historical Building Code (Title 24, Part 8)
California Historical Building Code (Title 24, Part 8)

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