That's definitely the source and solution I'm leaning towards I just can't quite believe it got so bad if so!
I just want to be sure I understand the problem before I do the repair it as it'll hide for years under ply/osb if I'm wrong and it is coming from below.
jk
Having read through lots of threads on here and information elsewhere I went back to look at it and a dig in the plaster last night and I'm if anything more puzzled.
The damp wall is apparently the result of years of botched repairs and modifications: Waterproof paint below floor and DPC...
Hello, I'm new so hope this is in the right area.
I have just taken possession of a rather tired 1930s end terrace that has a damp problem, apparently worse than picked up by the survey.
A little background: The house has a cavity wall with engineering brick DPC and a good roof...