Whisper Mat® HW is a peel & stick non-permeable sheet membrane, which reduces impact and airborne sound transmissions and is a moisture/vapor barrier. Designed for use with engineered wood plank, wood parquet and laminate floors. Used where sound-control is required, specified or desired. Constructed of a cross-linked polyolefin foam sheet combined with an aggressive rubberized adhesive, Whisper Mat HW combines sound absorption properties with moisture resistant properties making this an excellent system to enhance flooring installation performance.