I have a garage with a flat roof very similar to the one in the picture above. Its just over 20 years old and is starting to let a bit of water through in a few places and is generally not in brilliant condition...
I'm trying to find out from BCO whether I need planning permission etc to carry out the works but they are taking their time to get back to me!
One question I have is that taking the roof up to just under the windows would give a pitch angle of 18.43deg. The tiles on the main roof are Marley Wessex concrete interlocking tiles. Are these acceptable to use with this pitch angle?
Cheers
M