The system itself has an air layer that is connected as a whole. In case of fire, a pilot air duct will be formed quickly to spread the fire rapidly. The external thermal insulation system of polystyrene board exterior wall will shrink and melt quickly under high temperature radiation, and will burn under open fire, that is to say, in case of fire (open fire or high thermal radiation), the external thermal insulation system of polystyrene board exterior wall will be destroyed soon.
In this sense, it is very dangerous to paste face bricks on the surface of the polystyrene board external thermal insulation system. Under fire conditions, the polystyrene board is seriously deformed after being heated, which makes the face brick facing layer lose its support, causing the overall fall of the face brick layer and causing personal injury. This lesson has occurred.