Product Description, Applications
WhisperMat-CS is a peel-and-stick sheet membrane that reduces impact and airborne sound transmissions and isolates finished flooring from subfloor cracks. It is designed for use with ceramic, porcelain and natural stone tile where sound absorption is required, specified or desired.

Constructed of a cross-linked polyolefin foam sheet combined with an aggressive rubberized adhesive and a polyester mesh fabric, WhisperMat-CS also has the flexibility and strength to withstand structural movement and concrete shrinkage cracks up to 1/4" (6.4 mm) without transferring stress load to finished tile. In addition, excellent moisture resistant properties make this a most comprehensive underlayment for tile floors.

WhisperMat-CS can be applied to any structurally sound and clean surface, including concrete, plywood, gypsum underlayments, precast floor panels, OSB, ceramic tile, terrazzo, natural stone, leveling and patching compounds, cement backerboard and existing VAT, VCT and vinyl floors. WhisperMat is also approved for application over radiant heated floors.

WhisperMat’s sound absorption and anti-fracture properties make it an excellent system to enhance ceramic, porcelain and stone flooring installation performance in:

• Condominiums
• Office buildings
• Apartments
• Hotels
• Schools
• Single-family homes

Features, Advantages

• Sound reduction: IIC: 71; STC: 72; Delta IIC: 16
• Moisture resistant
• Anti-fracture resistant to 1/4" (6 mm)
• Provides thermal insulation
• Light commercial load rating
• Approved over radiant heated floors
• Uniquely thin system - 110 mil (2.8 mm)
• Economical