Use with Luxury Vinyl, Laminate, and Wood Floors 4mm+ thick in floating, glue-down, or nail-down installation methods. Recycled fibers absorb sound and keep it from traveling to other rooms, making click-together floating floors sound solid underfoot. Dense intertwined structure supports the seams of your floor and won't compress under consistent foot traffic. Unique Dri-Wick technology allows concrete subfloors to breathe, preventing moisture vapor emissions from becoming trapped, while anti-microbial fibers prevent mold and mildew growth. Certified Clean and Safe Indoor Air Quality because QuietWalk LV emits no VOC's (Volatile Organic Compounds) or off-gassing from materials. Pair with QuietWarmth Radiant Heat System for added comfort as QuietWalk allows heat to permeate evenly while helping to protect the floor covering material from thermal shock. Made of Recycled Synthetic Fibers in the USA. Approved for flooring with a pre-attached pad. Most versatile underlayment option in the QuietWalk line of products. Collection Name: Luxury Vinyl Type: Roll Coverage Area (Sq. Feet): 50 Length (Feet): 16.7 Square Footage Per Roll (Sq. Feet): 50 Thickness: 1.4 Thickness Unit of Measure: Millimeters Width (Feet): 3 Antimicrobial: Yes Construction Type: Felt Cushioning: Yes Enhancements: Sound Reduction, Vapor Barrier, Compression Resistant For Use on Concrete Foundations: true For Use Over Existing Hardwood: Yes For Use Over Subfloor: Yes For Use Under Laminate With Pre-Attached Pad: Yes For Use Under Floating: Yes For Use Under Glue Down: Yes For Use Under Hardwood: Yes For Use Under Laminate: Yes For Use Under Luxury Vinyl: Yes For Use Under Luxury Vinyl With Pre-Attached Pad: Yes For Use Under Nail Down: Yes For Use Under Porcelain/Ceramic: No For Use with Concrete: Yes For Use with Hardwood: Yes For Use with Laminate: Yes For Use with Porcelain: No For Use with Vinyl: true For Use with Vinyl Plank: Yes For Use with Vinyl Tile: true Grade: Premium IIC Rating: 66-70 Moisture Resistant: Yes Mold/Mildew Resistant: Yes Package Quantity: 1 R-Value per Inch: 0.53 Sound Absorbing: Yes STC Rating: More than STC-50 Use Over Cement Backer Board: Yes Use Over Existing Sheet Vinyl: Yes Use Over Exterior Grade Plywood: Yes Vapor Barrier: Yes Warranty: Limited lifetime CA Residents: Prop 65 Warning(s): No UNSPSC: 30161700