PRODUCT DESCRIPTION QuietWalk 360 sq ft underlayment is ideal for large-scale flooring projects requiring maximum sound absorption, moisture protection, and durability. Made for use under laminate and hardwood flooring, it installs easily under floating floors and is approved for floors with a pre-attached pad for broad compatibility. It features a high-density recycled fiber structure with a built-in vapor barrier that reduces impact and airborne noise while providing a smooth base for flooring installation. This roll is compatible with radiant heating systems like QuietWarmth and is GREENGUARD Gold Certified for clean indoor air. Proudly made in the USA, it is a contractor-grade solution for quiet, comfortable flooring. FROM THE MANUFACTURER Our revolutionary Advanta Green laminate floor underlayment smoothest out little sub floor imperfections while quieting impact sound and floor to ceiling noise. Not only does it dampen ambient sound in the room it's installed in, but it also inhibits sound from traveling into the room below. Although it is promoted as an upgrade underlayment taking the place of poly foam, it doesn't carry a heavy upgrade price when compared to cork or rubber. On the other hand, in recent head-to-head Sound Transmission Loss tests, Advanta Green outperformed both cork and rubber in the majority of test band frequencies.