Gypsum underlayment is strong choice

The Industrial Products Division of United States Gypsum Co. has introduced Levelrock CSD (Corrugated Steel Deck) Floor Underlayment, designed for use in buildings with light-gauge steel frame construction.

The underlayment is the first poured underlayment that can be applied over metal framing systems or corrugated steel decks. It utilizes a proprietary gypsum-based concrete formulation that is up to 55 percent lighter than three-inch concrete while offering compressive strengths of 3,500 psi to 4,000 psi. With a typical pour thickness of just 19⁄16 inch, the self-leveling product can be applied at much lower thicknesses than poured-in-place concrete. The strength of the system allows more floors to be added without requiring additional support. The product also allows light trade traffic to resume the following day.

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