General · G-2E62G

UL System Firestop Penetration Detail for Steel Pipe

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This firestop assembly accommodates steel pipe, iron pipe, or steel conduit penetrating a floor or wall assembly. The annular space is packed with mineral wool batts and blankets bearing the UL classification mark. A fill, void, or cavity material seals the penetration at the surface. The system achieves a 2-hour F rating and T rating, with low air leakage ratings at ambient and elevated temperatures.

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