MaterialsDiamond dome: 4mm UV Stabilised polycarbonate.Sunpipe: super silver mirror finish aluminium.Upstand: galvanised steel.The sunpipe natural daylight system directs sunlight into a room from roof level. The sunpipe collects daylight using a patented diamond dome, using a silverised PVD coated mirror-finished aluminium tube to transfer light to a room, with a ceiling diffuser evenly distributing the light around the room. Sunpipes are suited to almost any application, and have been installed anywhere from residential bedrooms to the olympic handball arena in London.