A curtain wall system is an outer covering of a building in which the outer walls are non-structural, utilized only to keep the weather out and the occupants in. These are lightweight aluminum framed facades housing glass or metal panels. Curtain walls are often part of a building structure or comprise one part of a wall system. Since the curtain wall is non-structural, it can be made of lightweight materials, thereby reducing construction costs. When glass is used as the curtain wall, an advantage is that natural light can penetrate deeper within the building. The curtain wall façade does not carry any structural load from the building other than its own dead load weight
Curtain wall systems range from standard prefabricated systems to specialized custom wall units.These aluminum framed glass wall systems are a hallmark of modern architecture, dating back to the 1930’s. Increases in the availability of inexpensive bulk aluminum following WWII led to their popularity and wide-spread adoption.Glass curtain walls are not exclusive to commercial applications. They also provide viable glazing solutions for residences as well.
The system accommodates tempered, laminated, low iron and LCD glazing, and may also be of a straight, angled or curved configuration. LCD, pivot, sliding and hinged doors may be installed. Wood and glass doors (single glazed and double glazed) are all compatible within the free standing system. The fittings may be of an aluminum finish, standard RAL color (Jet Black, Silver, Grey or White) or a custom RAL color.