![When numbers lie: Interpreting IIC ratings for flooring underlayment performance - Construction Specifier When numbers lie: Interpreting IIC ratings for flooring underlayment performance - Construction Specifier](https://www.constructionspecifier.com/wp-content/uploads/2019/09/Pouring_Gypsum.jpg)
When numbers lie: Interpreting IIC ratings for flooring underlayment performance - Construction Specifier
![QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment with Sound and Moisture Barrier for Laminate and Engineered Floors QW100B1LT - The Home Depot QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment with Sound and Moisture Barrier for Laminate and Engineered Floors QW100B1LT - The Home Depot](https://images.thdstatic.com/productImages/9688e324-08b7-424e-b77d-fc57589cb0ae/svn/quietwalk-underlayment-qw100b1lt-31_600.jpg)
QuietWalk 100 sq. ft. 3 ft. x 33.3 ft. x 3 mm Underlayment with Sound and Moisture Barrier for Laminate and Engineered Floors QW100B1LT - The Home Depot
![QuietWalk Laminate and Floating Wood Flooring Underlayment with Attached Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 3'Wx33'4"L Roll (Covers 100 sq. ft) QW100B1LT - Carpet Underlayments - Amazon.com QuietWalk Laminate and Floating Wood Flooring Underlayment with Attached Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 3'Wx33'4"L Roll (Covers 100 sq. ft) QW100B1LT - Carpet Underlayments - Amazon.com](https://m.media-amazon.com/images/I/816cx6OYYBL._AC_UF894,1000_QL80_.jpg)
QuietWalk Laminate and Floating Wood Flooring Underlayment with Attached Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 3'Wx33'4"L Roll (Covers 100 sq. ft) QW100B1LT - Carpet Underlayments - Amazon.com
![QuietWalk Laminate and Floating Wood Flooring Underlayment with Attached Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 6'Wx60'L Roll (Covers 360 sq. ft) QW360B1LT" - Carpet Underlayments - Amazon.com QuietWalk Laminate and Floating Wood Flooring Underlayment with Attached Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 6'Wx60'L Roll (Covers 360 sq. ft) QW360B1LT" - Carpet Underlayments - Amazon.com](https://m.media-amazon.com/images/I/71OH5x7APzL._AC_UF350,350_QL80_.jpg)