Side wall of 1900's Victorian terrace has plaster / paint peeling. Presumption was due to poor and dated flashing on roof which has since been fixed.
I have started to chip away at the paint and plaster to reveal a render which has these rusty coloured pin holes which is where I am presuming the moisture is / was coming in. Has anyone seen something similar?
Does plaster need to be removed for the wall to dry out and if so how long would that take?
Also would it be worth putting some sort of sealer / waterproof primer on the internal wall before plastering?
If you have fixed roof leaks and your wall is dry then it should be fine to prepare and paint over a dry wall, however if there is rising dampness then your problems are just starting
Have had it confirmed it is not rising damp by specialist as it does not come up from the base of the wall and is dispersed at differing heights.
Hoping plaster removal will now allow wall to dry out