hello. I've got a wet patch on the wall ceiling of my extension which would seem to suggest a leak. I've checked my gutters and the roof tiles all appear to be properly in place. There is a crack in some of the cement (I have no idea of the technical terms for the bits of the roof)
Attached are photos - including a close up of the crack. Do you think this is the source of the leak (it's not a big one) and what would be the fix?