Yes, retractable awnings do provide strong UV protection when they are extended and in use.
Most high-quality awning fabrics are designed to block a large percentage of harmful UV rays. Many solution-dyed acrylic fabrics can block up to 98 percent of UV radiation, helping protect people, furniture, and outdoor spaces from sun damage and fading.
The level of protection depends on the fabric type, but premium materials are specifically engineered to reduce exposure to both UVA and UVB rays, which are responsible for skin damage and interior fading.
In short, when the awning is extended, it creates a shaded area that significantly reduces UV exposure and improves outdoor comfort.