An awning, when installed over a window, a terrace or a balcony, provides protection against direct sunlight, wind drafts, rain or ice, without shutting out the surrounding view. The view of the house is enhanced when its doors and windows are covered with awnings of an appropriate color and style. Terraces, decks, and balconies can be converted into large covered areas that become airy attractive additional rooms with the proper use of awnings.

Metal awnings are usually made of aluminum, copper, iron, or steel, depending upon the architectural requirements of the building. Usually, vertical metal panel awnings and window or door awnings are of solid, stationary construction of strong ribbed heavy gauge materials, for all-weather durability against wind, rain, and sun. Depending on the individual shape and configurations, the awnings may or may not have distinguishable sides. Aluminum awnings are available in solid or striped styles and in several attractive colors. Metal awnings are available in several distinct types, depending on the functional requirements of the individuals.

Horizontal window panel or louvered awnings have an angled slat design with space between slats that enable the person inside the house to see out but prevent anyone from seeing in. Overlapping slat design also allows the sunlight to filter in indirectly. Aluminum slats are usually made of heavy gauge with a baked-on enamel finish that resists chipping, cracking, and peeling.

Retractable or roll-up metal awnings are usually constructed from flexible horizontal slats without any visible space between slats when the awning is in open position. They are controlled with a hand cranking device or cord pull. Storm awnings are specially made of heavy-duty materials and can be pulled down to cover and protect the entire window during a storm or worse, a riot.

Aluminum door awnings are designed for installation over the door to help keep stairs, entries, and landings free from excessive rainwater. They have to be installed with enough head clearance to allow the door to open. Copper, iron, or steel rigid type awnings are excellent for protecting doors and windows from the elements.