Oh dear I seem to have started quite a debate!
I would just say that even when it was very hot during the summer we had the problem, it never dried out and patches just kept on coming. so I'm not sure that the weather warming up will make a whole lot of difference.
Its a draughty house...
Thank you for all your advice, no we never had a problem with this condensation before. I think we will have the plaster taken off and done properly, I don't want to leave anyone with a problem.
Can you please advise me, should we have a sand/cement plaster or something done with lime?
I'm sorry I should have perhaps said that it was a modern plaster, the damp guy who came around mentioned the name Carlite plaster so I just remembered the name!
is a solid wall.
The room is an upstairs bedroom. Three external walls, one wall was reskimmed and that is obviously the one we are having the problem on.
It was plastered with Carlite something?
Cottage is approx 180 years old, sandstone solid walls, no cavity , walls approx 8inches thick , but thats a bit...
Just thought, maybe I should add that the damp patches did not appear until after we started using the room as a nursery for my newborn granddaughter, obviously not using it now for her. Before this , nobody ever slept in it. It has always been the coldest room in the house though.
Thank you for your reply. Yes, we bought an Ebac dehumidifier and it's been on non stop for 4 weeks, it did seem to dry out really well, so I thought it safe to repaint it. I put some dampseal paint over the stains and then emulsioned it, but strangely the damp patches appeared again overnight...
HI
I wonder if anyone can give me some advice.
We live in an old sandstone cottage. We had some walls reskimmed in March last year, all of the walls have been fine with the exception of the a wall in the spare room, which is on an exterior wall (as were all the other walls that were done)...