Patent ID: 7971403
Filing Date: 2011-07-05
Classification: B32B,E04D,E04F,Y10T

Abstract:
1. A plate-shaped roof cover material comprising an elastomer and an expanded metal grid, wherein the elastomer includes a glue or a joint sealant, the glue or joint sealant being highly elastic over a wide temperature range and providing strong adhesion to the metal grid, the metal grid having a plurality of ribs with openings, each opening being defined by its surrounding ribs, the openings being dimensioned such that the elastomer is embedded within the openings and between adjacent ribs, and the metal grid is a plastically deformable recrystallized expanded grid of aluminum or zinc, the elastomer and the embedded deformable metal grid allowing the roof cover material to be readily plastically deformed and, as a result of deformation and its material make-up, the metal grid is strain-hardened in use.