Tested Roof Assemblies - Verified Results
Introduced to the market 25 years ago, DensDeck® Roof Boards are the first gypsum roof boards tested to contribute to Sound Transmission Class (STC) ratings of up to 61 and Outdoor Indoor Transmission Class (OITC) ratings of up to 49 in roofing assemblies for commercial framed construction*. These high levels of sound attenuation are especially important as new code and building programs call for sound mitigation in wall and roof-ceiling assemblies.
DensDeck® Roof Board in assemblies still provide undeniable performance benefits including strength, fire resistance, moisture resistance and versatility – and are still the number one architecturally specified fiberglass mat gypsum roof boards.
Download Tech Talk
Download Project Profile: Ridgewood High School, Norridge, Illinois