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Home / Assemblies / UL J113
UL J1131-hr Fire RatingJoint System
Design

Perimeter Fire Barrier Joint — Silicone System

UL-listed 1-hour fire-rated perimeter fire barrier joint system. Perimeter Fire Barrier Joint, 2" max width, Silicone firestop sealant.

Cross-Section Diagram

1FIRE-RATED JOINTSECTION · NOT TO SCALE1 LAYERsee legend for ① ② ③
Legend
1Silicone firestop sealant(3/8")

Specifications

Fire Rating
1-Hour
Load Bearing
No
Total Thickness
Varies
Source / Publisher
UL (Underwriters Laboratories)
Design Number
J113
Assembly Type
Joint System
Test Standard
ASTM E1966
Construction Group
N/A
Number of Layers
1 layers

Applicable Codes

IBC 2024 §714IBC 2021 §715

Construction Summary

Perimeter Fire Barrier Joint, 2" max width, Silicone firestop sealant

Material Layers

LayerMaterialThickness
1Silicone firestop sealant3/8"

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.