Fire Protection · G-VXVBH

Firestop System Detail for Penetrating Pipe in Wall

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A pipe penetrates a rated wall assembly with firestop materials applied to achieve specific hourly ratings under ANSI/UL1479 and CAN/ULC S115 standards. The assembly provides a 2-hour F rating and a 3/4-hour T rating under UL standards, with corresponding ratings for Canadian standards. Numbered callouts identify the components of the firestop system, including the wall assembly, penetrating item, and firestop sealants or devices. An elevation view of the penetration and a cross-section show the installed configuration.

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