Louvers are specially designed to match the exteriors of a building. These are available in GI or aluminium construction for industrial purposes or in sleek looking extruded aluminium, contoured at specific angle to minimize water ingress. They come in attractive colours or coatings to suit various exteriors. A special bird/insect screen is provided as option to prevent the entry of any flying objects. Coarse filters can also be supplied along with the louver.