61 STC / 55 IIC

Combining two new innovative technologies that provide unmatched acoustical performance and durability in a patent pending system. Treadstone Duo Elite's industry leading deflection/compression innovation allows for Treadstone underlayment depths of ¾" min. providing an overall thickness of just over 1". Treadstone® Elite – Monolithic, rolled plastic core membrane comprised of polyethene and polypropylene, in a high compression resistance cuspated HDPE design. Provides compression/deflection resistance never seen in an acoustical sound mat product.