Hi all. My issue isn’t technically damp - it’s water ingress from a leaky chimney, but wasn’t sure where else to post!
Quick summary; we bought our house October ‘20 and realised a few months later our chimney was leaking. The stack had been painted with a grey sealant stuff and either side of the chimney breast wallpapered (sneaky IMO); this didn’t get picked up during the survey and us being FTB we were none the wiser. Anyway, long story short the stack has now been taken down below the roof line and slated over, so hopefully our problems won’t get any worse.
However. We are now left with wet walls and plaster either side of the chimney breast - the water wasn’t gushing in, but it’s tracking down the walls, and is extremely visible now we’ve removed the paper. Speaking of which, due to the water the paper/paste has left behind a nasty stickiness on the wall.
What do you folks recommend? Can I wash the wall (sugar soap?) and get a dehumidifier in to dry it out, before I repaint? The paint has also flaked off in places, can I gently rub that down before I repaint? Any other suggestions welcome, am a complete amateur!