Introduced to the market nearly 30 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.
Versatile fiberglass mat roof board. Enhanced surface treatment allows uniform spreading of adhesives for a strong, consistent bond. DensDeck Prime is an ideal cover board; or underlayment for spray foam applications, for photovoltaic, vegetative or cool roofing systems.
Durable, moisture- and mold-resistant fiberglass mat roof boards for a wide variety of roofing systems. Use for new and re-roofing applications. DensDeck provides a superior thermal barrier and is widely used in single ply, mechanically-attached systems.
What's brewing in your climate zone? See the specific benefits DensDeck® Prime Roof Board provides for the challenges of wind, fire, snow and hail in your state or province.
Click to watch a quick video demonstration showing the ease of cutting and scoring DensDeck, applying adhesives and installing it, compared side-by-side with gypsum fiberboard materials. (2:51)
Selecting DensDeck® Prime Roof Boards prove to be a good decision in the 200,000 square foot re-roofing of Detroit's Cobo Center. Hear the contractor's story first hand.
Learn more about third party test results that showed DensDeck® Prime Roof Boards offer superior protection against everyday punctures compared to HD ISO or no cover board.
Learn more about third party test results that showed DensDeck® Prime Roof Boards protect thermoplastic roofing membranes against hail damage better than HD ISO cover boards.
DensDeck® Prime roof boards can help dampen unwanted outside noise. In new construction or in retrofit applications, DensDeck® enables an innovative solution for exterior sound remediation.