United States Gypsum Company

Kurt Goodfriend

Stephen W Payne, Jr

David McDonald

John Ellicson

Dennis Albert Socha

Russell A Dombeck

Francis Harold Laux

Thomas F Sheppard

Stephen W Payne

David Bruce Mcdonald

Francis H Laux

Stephen W Payne Jr

Thomas Sheppard

The present invention relates to a sound rated floor system for inhibiting sound transmission between floors. The system includes a corrugated steel deck; a first layer of cementitious material or board or sheet applied over the corrugated steel deck; a sound insulation mat or board applied over the first layer; a second layer of cementitious material applied over the sound insulation mat or board. The floor system has an IIC rating of at least 25 and the corrugated steel deck provides at least 50 percent of the ultimate load carrying capacity under static and impact loading of the floor system with a floor deflection of at most 1/360 of the floor span.

Corrugated steel deck system including acoustic features

An acoustic isolation medium configured for placement between a subfloor and a finished floor with a poured underlayment, includes a first layer being a sound reduction mat disposed upon the subfloor, a second layer placed upon the first layer and being one of a sheet of fibrous material and a web of limp mass material with a high internal damping coefficient, and a third layer placed upon the second layer and being the other of a sheet of the fibrous material and a web of the limp mass material.

Acoustical isolation floor underlayment system

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Oak Park, IL, United States of America

Kurt Goodfriend