LifeProof Premium underlayment is a unique universal underlayment that works with floating floors. Constructed with durable 1.5 mm thick high density XPS foam, this underlayment enhances the performance of your floating floor. Its superior strength helps to protect locking systems and joints. The built in moisture barrier protects your floor against harmful moisture vapor. Its excellent R-value helps keep the floor more comfortable. LifeProof also features an easy to install fanfold design with printed cutting grid making it easy for DIY projects.. Compatible with luxury vinyl plank, engineered hardwood and laminate. Reduces impact sound transmission to room below, and creates a more natural sound in your room. Helps smooth out minor subfloor imperfections. High R-value creates a thermal break for a warmer more comfortable floor. DIY friendly - easy to install fan fold underlayment covers 100 sq. ft. per pack. High density foam helps protect your locking system and joints. Luxury vinyl plank sound ratings up to: IIC 72/STC 66/Delta IIC 26. Mold and mildew resistant. Underlayment tape sold separately. Works with Approved Radiant Heat systems. Limited lifetime warranty. Although Lifeproof vinyl plank, wood and bamboo come with a pad already attached, additional underlayment provides added thermal insulation and sound reduction. The only Underlayment approved for use with Lifeproof LVP. Package coverage (sq. ft.): 100. Flooring Type: Vinyl. Flooring Type: Laminate. Flooring Material Features: Sound absorbing. Flooring Material Features: Moisture resistant. Flooring Material Features: Mold/mildew resistant. Flooring Type: Engineered Hardwood. Flooring Material Features: Cushioning