Protect your good name with DensDeck® - the #1 architecturally specified fiberglass mat gypsum roof cover board* for nearly 30 years.
DensDeck Prime Roof Board has a decades-long legacy of superior performance and the versatility needed for virtually any roofing system.
Fiberglass mats and a noncombustible gypsum core, the #1 architecturally specified roofing cover board* is designed to address persistent challenges inherent in commercial roofing assemblies.
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.
* Based upon survey of CMD Group project specifications from 01/01/15 – 12/31/15.
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