QuietWalk Laminate Flooring Underlayment with Attached Vapor Barrier Offering Superior Sound Reduction, Compression Resistant and Moisture Protection (Covers 360 Sq. Ft.) Use with Laminate, Floating Engineered and Luxury Vinyl Plank (5mm and thicker) Superior Sound Reduction  Recycled fibers absorb sound and keep it from traveling to other rooms. Makes click-together floating floors sound solid underfoot. Compression Resistant  Dense recycled fiber structure supports the click-together mechanism and will uphold its supportive configuration under the consistent traffic of the overlying floor. Moisture Protection  Recycled fibers allow installation over concrete to &; breathe;  managing vapors from becoming bulk moisture. The attached vapor barrier protects the overlying floors from harmful moisture. Moisture Protection  Recycled fibers allow installation over concrete to &; breathe;  managing vapors from becoming bulk moisture. The attached vapor barrier protects the overlying floors from harmful moisture. Certified Clean and Safe Indoor Air Quality  No VOC's (Volatile Organic Compounds) or off-gassing from materials. Approved for In-Floor Radiant Heat Systems  Allows heat to permeate evenly while helping to protect the floor covering material from thermal shock. Achieve warmth with Quiet Warmth Radiant Heat System. Easy Installation - Roll out and join the seam Can be installed over wood or concrete sub floors Covers 360 sqft per roll