Elastic roofing and sealing materials

摘要

High-strength elastic roofing and sealing material consisting of at least one bonded fabric layer of organic material, optionally at least one further bonded fabric or bonded-fabric material layer of inorganic material, and a coating of bitumen on both sides, where the bonded fabric layer(s) is (are) impregnated with the bitumen, and where the bonded fabric of organic material has a certain area weight and a certain residual deformation after previous elongation. The bitumen coating optionally can be made elastic by the addition of modifiers with sufficiently low glass conversion points.