Typical assembly (not a tested listing)
3-Hour Fire Rated Steel Truss Roof/Ceiling — 3 layers 5/8" Type X gypsum board
Typical 3-hour fire-rated steel truss roof/ceiling assembly. Steel bar joists at 48" o.c., 3 layers of 5/8" Type X gypsum board on furring channels ceiling, 20 ga. steel deck. 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.
Steel bar joists at 48" o.c., 3 layers of 5/8" Type X gypsum board on furring channels ceiling, 20 ga. steel deck
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- Layer-by-layer components with thicknesses
- Cross-section diagram
- Applicable code sections and test standard
- 6 related assemblies