Facade heat insulation board for heat insulation of exterior facade of building, composite heat insulation system including the facade heat insulation board, and method for manufacturing facade heat insulation board

摘要

The present invention relates to a façade insulating board (4) for insulating exterior façades (2) of building, particularly as a component of a heat insulating composite system (1), which is made of bound mineral wool and meets a rated value of heat conductivity ? 0.040 W/mK according to DIN EN 13162. The façade insulating board (4) has an under layer (41) and a cover layer (42). The under layer (41) is made of laminar mineral wool. The cover layer (42) comprises mineral wool having increased mechanical strength compared to the under layer. The content of binding agent is first greater in the region of a boundary layer between the cover layer (42) and the laminar under layer (41) than in the other regions. The present invention further relates to a heat insulating composite system having such a new façade insulating board. The present invention further proposes a method for producing such a façade insulating board (4).