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Location: Ockendon Village
Joined: Jan 2008
Posts: 4,328
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Not thick at all Shona - the planning dept here didn't know what we meant when we asked if we needed planning permission!
A Sun Tube is a silver mirrored tube linking the fish eye lens on the roof to a diffusing panel in the living room. Sunlight comes through the fish eye lens like it would a window, travels down and is magnified by the tube and then spreads light in the room through the diffuser.
Its great where you can't get permission to put a window in because it doesn't need any planning permission. I first saw them on Grand Designs