What is Awnings?
An awning or overhang is a secondary covering attached to the exterior wall of a building. It is typically composed of canvas woven of acrylic, cotton or polyester yarn, or vinyl laminated to polyester fabric that is stretched tightly over a light structure of aluminium, iron or steel, possibly coot or transparent material (used to cover solar thermal panels in the summer, but that must allow as much light as possible in the winter). The configuration of this structure is something of a truss, space frame or planar frame. Awnings are also often constructed of aluminium understucture with aluminium sheeting. These aluminium awnings are often used when a fabric awning is not a practical application where snow load as well as wind loads may be a factor.
The location of an awning on a building may be above a window, a door, or above the area along a sidewalk. With the addition of columns an awning becomes a canopy, which is able to extend further from a building, as in the case of an entrance to a hotel. Restaurants often use awnings broad enough to cover substantial outdoor area for outdoor dining, parties, or reception. In commercial buildings, an awning is often painted with information as to the name, business, and address, thus acting as a sign or billboard as well as providing shade, breaking strong winds, and protecting from rain or snow. In areas with wintry weather, most awnings do not have to be taken down at the end of the summer – they can remain retracted against the building all winter long, or be designed and built for those conditions.
Retractable awnings let owners control the weather on their own terms. When passing showers threaten, or when the sun gets hot, they or the home automation system unroll the awning for near-instant protection and shade. Lab test measurements show that it can be as much as 20 degrees cooler under an awning’s canopy. Because awnings prevent the sun from shining through windows and sliding glass doors, they can keep temperatures inside cooler as well, which saves on air-conditioning costs. They can help prevent carpets and furniture from fading in sunlight. Awnings also provide a sheltered place for children and pets to play, shielded from direct sun.
Some of today’s awnings also offer accessories that can greatly increase the versatility and usefulness owners get from their decks or patios. A screen room add-on can easily turn an awning into a virtually bug-free outdoor room, side screening cuts down on wind and mist coming under the sides of awnings, and patio lights let people enjoy their decks evenings and nights.
It also can be used to cover the thermal solar panels in the summer.
Types of Awnings:
- Aluminium awnings
- Retractable awnings
- Retractable patio cover systems
- Retractable lateral arm awnings
- Retractable side or drop arm awnings
- Portable, pop-up canopies
- Retractable solar shade screens
- Shade sails