concrete over wood floor
Acousti-MatŪ 3 | Maxxon For super sound control even in open beam, concrete slab and conventional wood frame floor systems. Increases IIC and STC levels up to 17 points over wood frame, and IIC up to 25 points over concrete. FIRM-FILLŪ Gypsum Concrete Floor Underlayment Hacker Industries, Inc. supplies FIRM-FILL Gypsum Concretes and GYP-SPAN Radiant, cementitious floor underlayment toppings for fire and sound ratings and a flat surface for flooring. ... well as over 83 UL listings, FIRM-FILLŪ Gypsum Concrete floor underlayment is ... 4" (19mm) (minimum over wood) to 3 1 ... Flamespread index 0; Fuel Contribution 0; Smoke Density 0 ...

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