Eyelids are retractable awnings of a kind, and this shows just how natural and sensible they are. They have been used by people throughout history in both advanced and primitive societies. Fronds and leaves are used to make shelters in some jungles and many roadside stalls in Africa have primitive sacking or plastic blinds that are retracted with a stick contraption.
It was said that the Empress in the Chinese Qing dynasty used silk to protect her delicate skin from the summer sun. Cleopatra most probably had a sunshade too, manipulated by her servants. History is rich with the ingenuity of human endeavors to protect themselves from the sun. Apparently some space craft also carry similar apparatus.
The Coliseum had a complicated system of ropes and pulleys to extend a shade over the Emperor, so that he would be sheltered from the sun as he watched the killing going on beneath him in the hot sun. The horror of it may be why it took two thousand years before similar structures were erected over modern sports stadiums.
Materials used to construct blinds may themselves be partially protected. They will not be exposed continually to the corrosive effects of sun, wind and rain. New synthetic materials are being developed continually though it is doubtful that any are yet as good as tree shade. Canvas has long been used. It has the huge advantage of being both flexible and water proof. Other materials such as polyester, acrylic, cotton and aluminium are used, as economics dictates.
Aside from keeping the sun from the skin, overhangs may be used to protect shop windows from the rays that damage goods on display in shop windows. At night the awnings may be retracted to allow greater visibility. During the winter months these features may hibernate against the wall, or even withdraw into recesses in the wall. When warmer months come around again the awnings may come out with the spring flowers.
Restaurants and cafes can also make good use of shades that can be extended or withdrawn as circumstances dictate. Canvas awnings may be water proof and protect clientele from both heat and rain. Such arrangements allow establishments to expand their space into the street without actually laying claim to ownership of the area. Many clients prefer the airiness of being outside.
Overhangs may be used by homeowners to protect windows, doors and patios. The latest models will operate electronically, even from a distance. It is no longer necessary to wrestle with stiff poles and tangled ropes. Machines will silently retract or extend a shelter as if by magic. Although the traditional striped canvas colours are still popular, there are now variations and new designs. In new or older homes blinds can provide a sense of style as well as performing their practical purposes.
Retractable awnings have a special way of adding freshness to the facade of a building. Although many people prefer the traditional stripes, there are many other colours and patterns available to the homeowner. Companies or firms might also like to have their corporate colours or brand logos stylishly displayed on an awning.
The use of retractable awnings enhances the appearance of your residence and lowers utility bills. Find retractable awnings Middletown area by doing a regional search query on the Internet.