General · G-M57G8

UL System Firestop Penetration Detail for Pipe and Cable

Materials

Elements

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A floor or wall assembly is penetrated by a pipe with optional plastic insulation and cables. The annular space around the penetrants is sealed using fill, void, or cavity materials including a wrap strip, packing material, and a top layer of caulk or sealant bearing the UL classification mark. Section A-A details the layering and spatial arrangement of the firestopping components within the assembly thickness. The assembly achieves a 3-hour F rating and specific L ratings at ambient and elevated temperatures.

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