FACADE INSULATING BOARD FOR INSULATING EXTERIOR FACADES OF A BUILDING OF HEAT INSULATING COMPOSITE SYSTEM COMPRISING FACADE INSULATING BOARDS AND A METHOD FOR PRODUCING FASADE INSULATING BOARDS

摘要

The present invention relates to a facade insulating board (4) for insulating exterior facades (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 facade 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 facade insulating board. The present invention further proposes a method for producing such a facade insulating board (4).