Chapter 9 — ROOF ASSEMBLIES
2025 California Residential Code (Title 24, Part 2.5) · 2025 edition · ingested 2026-07-07 · California
Sections in this part
- Section R901 — GENERAL
- Section R902 — FIRE CLASSIFICATION
- Section R903 — WEATHER PROTECTION
- Section R904 — MATERIALS
- Section R905 — REQUIREMENTS FOR ROOF COVERINGS
- Section R906 — ROOF INSULATION
- Section R907 — ROOFTOP-MOUNTED PHOTOVOLTAIC PANEL SYSTEMS
- Section R908 — REROOFING
- Section R909 — ROOF COATINGS
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User notes: About this chapter: Chapter 9 addresses the design and construction of roof assemblies. A roof assembly includes the roof deck, substrate or thermal barrier, insulation, vapor retarder and roof covering. This chapter provides the requirement for wind resistance of roof coverings. The types of roof covering materials and installation addressed by Chapter 9 are: asphalt shingles, clay and concrete tile, metal roof shingles, mineral-surfaced roll roofing, slate and slate-type shingles, wood shakes and shingles, built-up roofs, metal roof panels, modified bitumen roofing, thermoset…