Typical assembly (not a tested listing)
1-1/2 Hour Fire Rated Wood Truss Roof/Ceiling — single layer 5/8" Type X gypsum board
Typical 1.5-hour fire-rated wood truss roof/ceiling assembly. Wood trusses at 24" o.c. with R-49 blown cellulose, single layer of 5/8" Type X gypsum board ceiling, 7/16" OSB sheathing. Illustrative example of typical construction — not a tested UL or GA listing. Use a listed design (UL Product iQ or GA-600) for construction documents.
Wood trusses at 24" o.c. with R-49 blown cellulose, single layer of 5/8" Type X gypsum board ceiling, 7/16" OSB sheathing
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- Layer-by-layer components with thicknesses
- Cross-section diagram
- Applicable code sections and test standard
- 6 related assemblies