GenieMat RST is a flat, resilient, reduced sound transmission mat made from 94% recycled rubber content, used directly under hard surface floor finishes and over concrete and wood construction. It is used when superior sound control is required in multi-family housing, high-rises, or commercial buildings and protects ceramic tile, porcelain and stone from substrate cracks. Engineered for direct adhered floor coverings such as tile, stone, wood, and vinyl floor coverings TILE – All products rated for minimum of commercial use. WOOD – GenieMat FAS adhesives offer superior bonding strength. VINYL – One-step method provides superior sound control for resilient floor coverings.