Chapter 15 — ROOF ASSEMBLIES AND ROOFTOP STRUCTURES

Section 1505 — FIRE CLASSIFICATION

2025 California Building Code (Title 24, Part 2) · 2025 edition · ingested 2026-07-07 · California

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[BF] 1505.1 General. Fire classification of roof assemblies shall be in accordance with Section 1505. The minimum fire classification of roof assemblies installed on buildings shall comply with Table 1505.1 based on type of construction of the building. Class A, B and C roof assemblies and roof coverings required to be listed by this section shall be tested in accordance with ASTM E108 or UL 790. In addition, fire-retardant-treated woodroof coverings shall be tested in accordance with ASTM D2898; fire-retardant-treated shingles and shakes shall comply with Section 1505.6. Exception: Skylights…