When floors and furnishings are becoming faded due to sunlight, you can control the fading by blocking the sun with shades or curtains, but then, of course, you’ll lose the natural light.
Fading is caused by ultraviolet light, heat, and visible light from the sun. Overhangs, awnings, and shade trees can help, but the best solution is to apply window film tints that are designed to block UV rays, reflect heat, and slightly reduce visible light.
Sold in rolls at home improvement centers, window film tint is a thin, plastic-like material. It is easy to apply to the inside surfaces of windows, using a soapy solution of water (directions come with the film). See How to Buy & Apply Widow Film for complete information.
Choose reflective low-e films to cut back on UV rays and heat; beware of the darker films-with these, you’ll sacrifice natural light.