Supress in The Media

July 30, 2008
Supress Sound-Engineered Drywall Earns One Hour Fire Rating in UL-Equivalent Testing
San Rafael, CA, July 30, 2008 - Supress Sound-Engineered Drywall has earned a one-hour fire-resistance rating in UL-equivalent testing conducted in accordance with the ASTM E 119 fire testing method for building construction and materials.
"This test confirms our belief that Supress Sound-Engineered Drywall not only provides superior sound suppression but is also a safe and reliable alternative to multiple layers of traditional drywall," said Bruce Donaldson, President Supress Products, Inc.

The fire-resistance rating was determined via two independent tests, each incorporating a different residential wall construction and panel thickness of Supress Sound-Engineered Drywall. Conducted by Southwest Research Institute, the first test paired ¾-inch Sound-Engineered Drywall with a non-load-bearing wall assembly of 20-gauge, 3 5/8-inch steel studs placed 16 inches on center. The second test, by Western Fire Center, was conducted with a load-bearing 2 x 4 wood-stud wall assembly finished with 5/8-inch Sound-Engineered Drywall. In each instance, the Supress product achieved a fire-resistance rating of one hour-a critical first step in the overall UL certification process.

Supress Sound-Engineered Products provide high-performance soundproofing for walls, floors and ceilings in commercial, multi-family and residential structures. To obtain more information on Supress Sound-Engineered Drywall, Plywood, Adhesive and Acoustical Sealant, visit

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