Customer Briefs


The cross section of a CFdesign simulation shows a hall (left) leading into a room. A 4 mph breeze blows down the hall. The Berner air door (center top) effectively stops wind from entering the room. The effect of insufficient velocity: Berner used CFdesign to show that a competitive air door with insufficient velocity does not develop a full air stream to the floor, allowing a 2-mph cold breeze to enter a warm building. The effect of insufficient uniformity: Another competitive air door was shown to deliver insufficient uniformity to seal the doorway. Not Stopping 2 mph wind due to insufficient velocity(isoplane 160fpm colored by temp) Air Door Installation