The Soundmaster EVA (Ethylene-Vinyl Acetate) Underlayment 4.5mm is designed for installation beneath floating laminate, bamboo, and engineered wood flooring, making it compatible with various subfloor types. This underlayment features a 4.5 mm thick foam layer that provides excellent cushioning and sound insulation. It is approved for strata use due to its favorable ratings. The coverage area is 100 square feet per roll, with an IIC (Impact Sound Transmission Test) rating of 84 and an STC (Sound Transmission Class) rating of 86.