Roof Talk-101 What is DensDeck Roof Board?

Roof Talk-101  What is DensDeck Roof Board?

DensDeck® Roof Board is an exceptional fire barrier, thermal barrier, coverboard and recovery board used in various commercial roofing systems. The patented DensDeck design employs glass mat facings front and back that are mechanically bonded to a water-resistant gypsum core, providing excellent fire resistance, moisture resistance and wind uplift properties. The unique construction of DensDeck provides superior flute spanning that stiffens and provides increased foot traffic resistance to the roof deck.
 
Additionally, DensDeck has been shown to withstand delamination, deterioration, warping and job-site damage more effectively than roofing membrane substrates such as paperfaced gypsum board, fiberboard and perlite insulation. DensDeck is highly resistant to the growth of mold when tested, as manufactured, per ASTM D 3273.

 

Roof system manufacturers and designers have found DensDeck Roof Board to be compatible with many types of roofing systems, including: built-up, modified bitumen, single ply, metal systems, wood shingle and shake, tile, slate, as well as a recovery board and overlayment protection board for polyisocyanurate and polystyrene insulation. DensDeck can also be used as a form board for poured gypsum concrete deck in roof applications as well as a substrate for spray foam roofing systems. 1/2” and 5/8” DensDeck may also be used in vertical applications as a backer board or liner for the roof side of parapet walls.
Some membrane manufacturers have hot mop asphalt or torch applications directly to DensDeck without using a primer or base sheet. Consult with the system manufacturer for their recommendations with this application. System manufacturers and designers have found DensDeck to be compatible with bonding adhesives for fully-adhered single-ply membrane applications. The exceptional moisture resistance and low R-value of DensDeck make it the preferred substrate for vapor retarders.
 
An excellent fire barrier, DensDeck features a noncombustible core and inorganic surface that offers greater fire protection than other conventional commercial roofing products when applied over combustible roof decks and steel decks. DensDeck is FM tested.

ROOFTEC-LLC has been installing commercial roofing systems for over 30 years. We have the solutions you are looking for if you desire a new commercial roof or need a re-roof. ROOFTEC-LLC only uses the best products and installation practices to insure you have a worry free commercial roof. For more information visit us at. www.rooftec-llc.com.