A pipe penetrates a structural concrete slab coordinated per structural drawings, with finish flooring applied where applicable. An Underwriters Laboratories listed one-hour firestop system seals the annular space around the penetration. Pipe material, penetration size, firestop material, and minimum thickness are governed by the specific firestopping submittal.
UL LISTED 1 HOUR FIRE STOP PER STRUCT SLAB PER STRUCTURAL FINISH FLOOR WHERE OCCURS NOTE: * SEE FIRESTOPPING SUBMITTAL FOR PIPE MATERIAL, SIZE OF PENETRATION, FIRE STOP MATERIAL AND MIN THICKNESS
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