The SUNPIPE system's energy free, super reflective tube even extends through adjustable bends and has an internal mirror finish that intensifies and reflects natural daylight delivering free outdoor light to a room or area below - where the light is evenly diffused by a translucent ceiling fixture.There is virtually no limit to the length of Sunpipe or number of bends that can be used and the Sunpipe can twist and turn easily to take natural light to exactly where you want it.Features:No structural alterations required, easily fits between joists and rafters.No maintenance required and will not leak.Top dome is self-cleaning due to its shape and eliminates condensation problems.All sunpipe systems are guaranteed for 10 years against faulty manufacture.Few fixings are required, normal single fixing at base of system.Joints are sealed using aluminium tape.Can normally be installed in two or three hours.