Air-Permeable Waterproof Cover (Wormund 130)
There is always a need for a waterproofing layer to remove the water which may enter in various ways under the roofing materials. This layer is created with the pitch impregnated cardboard covers called Ruberoid in recent past. Today, oltu-based or bitumen-free under-tile waterproofing covers or grooved waterproofing panels are used. The best and the most accurate application is to place waterproofing covers on the roof covering, veneer or thermal insulation layers through a double-slat (vertical and horizontal) system.
Waterproofing products are resistant against the temperatures between -40oC and +80oC, and hardly inflammable. Vapor permeability should be approximately 1200g/m2 and 24h tear resistance should be approximately 200 N/b cm.