Typical thicknesses are 1/4 inch and 1/2 inch. It is also called cement backer board. This premium underlay consists of polyethylene with a unique design. DITRA features a grid structure of square ...

is switching almost exclusively to WOODSTALK 1/4" underlayment and moving away from tropical lauan underlayment that is an industry mainstay. Dow Bioproducts Ltd. manufactures WOODSTALK composite ...

Roof underlayment is a critical part of any roof and serves as a secondary layer of protection against the elements. This roofing material also plays a vital role in keeping moisture out of your home.