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Home / Assemblies / UL J110
UL J1104-hr Fire RatingJoint System
Design

Head-of-Wall Joint — Spray-applied System

UL-listed 4-hour fire-rated head-of-wall joint system. Head-of-Wall Joint, 1" max width, Spray-applied firestop material.

Cross-Section Diagram

1FIRE-RATED JOINTSECTION · NOT TO SCALE1 LAYERsee legend for ① ② ③
Legend
1Spray-applied firestop material(1/2")

Specifications

Fire Rating
4-Hour
Load Bearing
No
Total Thickness
Varies
Source / Publisher
UL (Underwriters Laboratories)
Design Number
J110
Assembly Type
Joint System
Test Standard
CAN/ULC-S115
Construction Group
N/A
Number of Layers
1 layers

Applicable Codes

IBC 2021 §714IBC 2021 §715

Construction Summary

Head-of-Wall Joint, 1" max width, Spray-applied firestop material

Material Layers

LayerMaterialThickness
1Spray-applied firestop material1/2"

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.