Independently lab tested and time-proven in millions of square feet of residential and commercial structures, 440 SoundBarrier is a special-density, structural board made from 100 percent environmental Homasote cellulose fiber, a homogeneous composition manufactured with uniformly distributed protection against termites, rot and fungi and resistance to moisture. It also insulates, with twice the R-value of wood. Made with FSC certified material.
Features
FSC Certified
Lightweight
Easy to handle, cut and shape
Widely available in convenient sizes
Ready to apply directly to framing
Provides excellent noise attenuation when installed as recommended