The 80% UV block exterior roller shade combines Coolaroo knitted fabric with a smooth operating roller clutch mechanism. All components are UV stabilised for outdoor use. The aluminum head rail and bottom rail will prevent sagging and bending and tie downs are included to secure the bottom rail for added protection. The fabric blocks up to 80% of harmful UV sun rays to reduce heat and glare while still providing daytime privacy in a range of patio, window and other outdoor applications.