The AeroRoof is self-opening and is closed by a motor. The design with a curved flap steers the air horizontally along the ceiling for an optimum ‘coanda’ (ceiling) effect. Versions with a straight flap direct the air downwards, in a straight line. The AeroRoof ceiling valves are available with single and double valves and are made entirely of plastic and stainless steel to guarantee a long service life. We can provide matching solutions for all applications. The valves are also available as kits that need to be assembled on site. This saves up to 70% on transport volume.