USG underlayment made for radiant heat systems
The United States Gypsum Co. has developed Levelrock Brand Floor Underlayment RH (Radiant Heat). The underlayment, which was developed for use with radiant heat systems, delivers compressive strengths between 2,500 and 3,200 psi and is designed to maintain that strength for the life of the floor.
Levelrock can be used with hydronic and electrical systems, and in wood-framed construction and light-commercial applications, the company says. The underlayment can be applied over a variety of subfloors including plywood, oriented strand board, heavy wood plank, concrete, and concrete plank.