We've had an issue with our bedroom wall for years, it's at the gable end, has a chimney (which is not in use, has a small opening, but apparently is blocked off with a slate (not an airbrick) at the top.
There is sometimes a large area that is dark (anything from a sqm to a few sqm) The gable end ws repointed about 10 years ago and the chimney repointed a few months ago.
Would this be from condensation caused by the chimney being blocked off or does it sound more like a leak somewhere?
Thanks J
There is sometimes a large area that is dark (anything from a sqm to a few sqm) The gable end ws repointed about 10 years ago and the chimney repointed a few months ago.
Would this be from condensation caused by the chimney being blocked off or does it sound more like a leak somewhere?
Thanks J