UL C1162-hr Fire RatingJoint System
Mineral WoolDesign
Wall-to-Wall Joint — Firestop System
UL-listed 2-hour fire-rated wall-to-wall joint system. Wall-to-Wall Joint, 2" max width, Firestop pillow system with mineral wool backer.
Cross-Section Diagram
Legend
1Mineral wool backer(3")
2Firestop pillow system(1")
Specifications
Fire Rating
2-Hour
Load Bearing
No
Total Thickness
Varies
Applicable Codes
NFPA 5000IBC 2021 §715
Construction Summary
Wall-to-Wall Joint, 2" max width, Firestop pillow system with mineral wool backer
Material Layers
Important Notice
This assembly listing is for reference only. Always verify against the current UL Product iQ database before specifying in construction documents. Material substitutions may void the fire rating. Consult with a qualified fire protection engineer for project-specific requirements.