Hi
I may be asking the obvious but i am having issues with newly a newly plastered\painted area on the Landing
The wall was re plastered at the start of the year and painted well after it had dried
I have started getting issues with an area that started to peel and i thought it was some sort of reaction to something in the plaster. I peeled it off and repainted, but it has reappeared with a vengence
I think it is probably obvious but there's no obvious damp there apart from the peeling and the white "Fungus" which is why i have my doubts about it being caused by damp
That part of the landing is at the back of the house so is closest to the roof. I did have some work on the flashing done over that area a couple of years ago but have had no obvious issues since
Please see photos which tell a better story than i can