Coolaroo Exterior Roller Shades are the ideal solution for blocking heat and glare through windows, or on patios, porches, decks and lanais. Made from unique all weather fabric, they block up to 92% of the sun's UV rays, cutting cooling costs when used over a window. The breathable fabric allows hot air to escape, and cool breezes to flow through, significantly reducing temperatures when used on a patio or porch. They provide daytime privacy, while allowing you to enjoy your view of the outdoors. Backed by a 3 year warranty against UV degradation, these durable shades are easy to install, and easy to clean.