There are two primary components of an awning: the frame and the awning cover. A mix of steel and aluminium is used for frames because it’s rust-proof, solid, and durable. Some models have bars with different widths and girth at varying prices. Retractable awning covers are made of different fabrics: cotton, canvas, polyester, and vinyl. People often choose polyester and vinyl for their awnings because they are durable and waterproof. Covers made of canvas are susceptible to mildew and UV deterioration so are less popular. UV-resistant options are popular in countries where shade is a priority.