A Louver is a ventilation product that allows air to pass through it, while maintaining unwanted elements such as water, dirt and dirt. Several fixed or operable blades mounted in a frame can provide this functionality.
In addition to providing fresh air and exhaust, blinds can also provide an architectural style to the design of the building.
Louvers are rarely seen as primary design elements in the language of modern architecture, but simply as a technical device. The louvers are part of the design of Demerara windows to help keep buildings of the 18th and 19th centuries cool in hot climates and block direct sunlight. Some modern louver systems are used to improve natural lighting inside. Fixed mirror grid systems can limit glare and redirect diffuse light. Said blinds can be integrated between two double-glazed panels. In industrial facilities such as steel foundries and power plants, blinds are very common. They are used for natural ventilation and temperature control.
Louvers can be used as a type of flood opening, usually covered by one or more moving fins. They are designed to allow floodwaters to enter and leave the building, matching the hydrostatic pressure in the walls and mitigating structural damage due to flooding.
Louvers are also used as semi-passive means of thermal control in spacecraft. They are also available as accessories for some cars.
Louvers can also be used with traffic light lenses to prevent traffic from detecting an incorrect traffic signal.