WISA-Roof is a plywood panel with strength-oriented construction designed for load-bearing roofing sub-structures.
WISA-Roof is made of spruce veneers bonded with weather-resistant glue. The panel is surface treated to give protection against wood colouring and decaying fungi during the construction. The unsanded face gives a better grip on the roofing site and decreases the risk of accidents. Tongue-and-groove on long edges makes the installation of WISA-Roof easy and effortless.