A louver is a type of window or door shutter that is composed of multiple overlapping slats of metal, wood, or other material. The slats are angled to allow for air flow, but also provide privacy and shade from the sun. Louvers are commonly used in homes, offices, and other buildings to provide ventilation, light control, and privacy. They are also used in industrial applications such as in the ventilation of engines and other machinery. Louvers can be made from a variety of materials, including aluminum, steel, wood, and plastic. Aluminum louvers are popular due to their strength, durability, and low maintenance requirements. Aluminum louvers are available in a variety of sizes, shapes, and colors, and can be customized to fit any space. They are also resistant to corrosion and weathering, making them a great choice for outdoor applications.