HW-D-0209 UL Firestop System Installation | Top-of-Wall Joint in Gypsum Wall Assemblies

From the video's description

Learn how to install Hilti Firestop System HW-D-0209, a UL/cUL tested firestop top-of-wall joint system designed for gypsum wall assemblies. This installation video demonstrates the proper application of Hilti firestop sealant at the intersection of a rated gypsum wall and concrete floor assembly to help maintain the fire-resistance rating while accommodating building movement. HW-D-0209 is tested for 1-, 2-, 3-, and 4-hour rated wall assemblies and provides Class II movement capabilities for dynamic construction joints. The system achieves air leakage performance of less than 1 CFM per linear foot at both ambient and 400°F conditions when installed with approved Hilti sealants. System Highlights Class II Movement Capabilities – 19% Compression or Extension 33% Compression or 16% Extension 43% Compression F-Rating: Up to 4-hour L-Rating less than 1 CFM/sq ft at ambient and 400°F …

Written by Hilti North America on YouTube.