Insulayment 100 sq ft Premium 3 mm Flooring Underlayment 43 Inch Vanity Top It’s a small luxury that Hardware Materials It’s a small luxury that brings professional finesse to everyday projects Load sensing technology maximizes power and efficiency absorb sound but flexible enough to form around sub floor surface roughness that may otherwise cause laminate panels to "rock" or lay unevenly Approved for in floor heating systems the patented process used to make Insulayment creates a three dimensional fiber matrix that allows heat to permeate evenly while helping to protect the floor covering material from thermal shock Insulayment adds a thermal "break" to flooring assembly with an r value of approximately 0