DensDeck roof board, with its fiberglass mats and non-combustible gypsum core* - is resistant to mold growth, and has scored a 10, the highest level of performance for mold resistance under the ASTM D 3273 test method.
With billions of square feet installed over three decades in a complete range of roofing systems and climate extremes, DensDeck® Roof Boards have proven their toughness and versatility. DensDeck® panels continue to earn industry accolades due to their ability to deliver high quality performance, every time.