Why choose awnings for the home?
Awnings are a low-cost, low-tech way to summer cooling. They can serve two functions, to supply shade for the summer sun to control heat entry to the home, and also to offer more protection from rain and hail, to extend the life of the building structure and to offer shelter. About 40% of unwanted heat that enters the house is through the windows.
An awning is a fixed structure attached to the outside of a building, over doors, windows or walkways. Awnings were first used by the ancient Egyptians and Sumerians. The Coloseum in Rome was shaded and protected by large retractable canvas awnings.
Awnings can be made from a number of different materials, can be permanently fixed or retractable, decorative or purely functional. The angle and size of the awning is important to get the best result from an awning. The right placement ensures that summer sun can be excluded from the windows, yet allows the winter sun to penetrate to warm the house.
A light coloured awning will also reflect sunlight and heat. A slight gap left between the awning and the house will help to vent the heat that builds up under the awning. Installing the awning at an angle of 45 degrees looks and functions best.
The awning pictured right, is a permanent structure, and can be constructed from various materials. The advantage of this type of awning is that it is set and forget, apart from painting and cleaning. The disadvantage is that you are stuck with one level of setting.
There are other awnings which can have various configurations of control. You can have the mounting arms movable and adjustable, and the awning covering removable or retractable or partially so. This will give you greater levels of control over your covering options. You also have a choice of manual or motorised controls and adjustment.
The Ventian awning pictured below left, has either fixed or movable louvres for shade control. The advantage of these is that they allow some degree of light and vision through the louvres. If the louvres are movable, this allows for more light when needed. The louvres can be of wood, aluminium or various plastics. The latter two are maintenance free apart from cleaning.
The Canvas awning pictured far right can be slid down to any position on the rods. In winter, it can be retracted back into the hood for maximum sun penetration to the home. The advantage of these is that they are light, inexpensive and easy to maintain.
Selecting the most suitable awning for your home will ensure you have the best low-cost, low-tech way to cool your home in summer.