We noticed water dribbling down approx 6 to 8 inches drop right across the top edge of the wall over the window of a North facing bedroom, akin to condensation on the walls you sometimes see in the bathroom after a hot shower. (the house is central heated and windows are often left open for fresh air.) We are getting signs of mould now in the bedroom where this dampness is apparent
I went up into the loft to check the edges of the roof space to see if any insulation had covered the gaps left to allow the roof to breath (if that's what they do)
This all seems fine, but the black inner lining under the tiles of the whole roof is wet. but only on the north side. And I mean really wet.
What's happening? is the wet in the roof getting to the bedroom? is that possible?
who do I get in to fix it? Any help much appreciated please.