Benefits:
The U.S. Department of Energy estimates that proper use of awnings can reduce summer heat gain by 65 percent on southern-facing windows and up to 77 percent on windows that face east and west.
Other benefits of awnings include:
Advertising, marketing and adding curb appeal to a home or business.
Sun, wind and rain protection for porches, patios, parking structures, entranceways, playgrounds and more.
Protecting woodwork around windows from exposure to rain.
Allowing you to keep the windows open while it is raining.
Reducing glare on televisions and computer monitors placed near 
windows.
Awnings are commonly available in two materials: aluminum and outdoor fabric. Many modern fabrics are long-lasting, bright, easily cleaned, strong and flame-retardant.
Modern frame materials offer high strength-to-weight ratios and corrosion resistance. The proper combination of these properties can result in safe, strong, economical and attractive products.
Identification, Advertising Applying graphics directly to awning fabrics provides identification and/or advertisement without the need for "add-on" sign structures.
Most awning frames are custom made by cutting, bending and welding metal tubing, and fitting the fabric to the frame. With these custom methods, almost any shape and size can be attained and covered with awning fabric. Hence, the same surface can serve at least three necessary functions: weather protection, identification and architecture.