Roofing Assemblies with DensDeck� Roof Boards First to Achieve Industry-Leading 61 STC and 49 OITC Ratings

Georgia-Pacific Gypsum continues to innovate in the roofing industry with its DensDeck® Roof Boards, which are the first gypsum roof boards tested to contribute to Sound Transmission Class ratings of up to 61 and Outdoor Indoor Transmission Class ratings of up to 49 in roofing assemblies for commercial framed construction*.

Source: http://biz.yahoo.com/prnews/110831/cl58994.html?.v=1

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