The 80% UV block exterior roller shade combines knitted fabric with a smooth operating roller clutch mechanism. All components are UV stabilized for outdoor use. The aluminum headrail 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 patios, windows, and other outdoor applications.