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    Fast-applying cementitious underlayments formulated specifically for electrical and hot water radiant heat floor installations. Levelrock® Brand RH Series Floor Underlayments and Levelrock® Brand RH Green Series Floor Underlayments are ideal for use in residential and light-commercial construction.

    Main Features

    The non-shrinking nature of Levelrock® Brand RH Series Floor Underlaymentslocks hydronic tubes and electric cables in place, preventing noise and tube chafing, while the special formulation is designed to be used within the elevated operating temperature ranges associated with radiant heat floors. Levelrock® Brand RH Series Floor Underlayments:

    • Accept virtually all types of floor coverings including ceramic tile, carpeting and wood
    • Apply at thickness of ¾-in. to 3-in.
    • Provide compressive strengths of 2500 to 3500 psi
    • Can shorten it's setting time with the use of Levelrock® Brand RH Accelerator
    • Are engineered and manufactured by USG.


    • Corridors and Hallways
    • Dormitories
    • Guest Rooms and Suites
    • Lobbies and Reception Areas
    • Multi-Family Residential and Condos
    • Single-Family Residential

    Documents & Files

    Submittal Sheets & Specifications

    White Papers

    Catalogs & Brochures

    Installation & Technical Manuals

    SDS, Certifications & Reports