Specification Data on our Product #8244 Installation Instructions Cork is a natural material, extremely effective for sound control (independently tested according to ASTM standards for acoustical values) and is an effective thermal insulation barrier. In addition, cork offers important stress crack protection. Quite easy to install, environmentally friendly, cork underlayment does not deteriorate after years of use and is an ideal and economical solution for your underlayment requirements. Natural cork underlayment is available in rolls 4’ x 50’ x 6mm thickness (200 sq/ft), 4’ x 100’ x 6mm thickness (400 sq/ft) and 4’ x 200’ x 3mm thickness (800 sq/ft). Cork rolls can be sheeted with a sharp knife or razor blade. Use Under HARDWOOD FLOORING, CERAMIC TILE and STONE... • Cork underlayment reduces noise/sound transmission • Cork underlayment is an effective thermal insulation barrier • Cork underlayment offers stress crack protection