This Energy Star approved 10 In. diameter tubular skylight kit includes everything needed to bring the beauty of natural light into your home, and is appropriate for roof types of asphalt shingle, composite, and rolled roof applications, including roof pitches of 3:12 up to a 12:12 pitch. The kit includes all components to complete up to a 48 In. installation. Kit includes: Asphalt roof flashing, UV-Resistant Solar Lens Dome with Patented Reflex Optics and two 25 In. adjustable angle (up to 45 degree angle) tubes to maneuver around obstacles in the attic. Kit also includes a ceiling trim ring that mounts securely to the ceiling utilizing " flip tabs", eliminating the need for screw holes, and a double insulated glass diffuser that eliminates any potential condensation problems. The kit also includes cutting templates and will light an area up to 150 sq. ft., has leak-proof flashing and easy to install. Maximum install length of this kit is 12 Ft..