Hi, sorry for the long story but I am a complete novice when it comes to rot and I have had this problem on my walls for a while now.
In my bedroom upstairs my wall corners and some main wall have gone patchy and smudged with what looks like a grey/white shade (walls are painted black) so its really obvious but when I wash them or spray water and wipe it disappears then a few days later it reappears in same place.
Now I did not have this issue before painting my room (2 years back) so when I painted my room black over the old blue (1 coat, no undercoat or base coat) this starting happening about a year after and now its mostly all over.
Now I know I could call a professional but I have not got the money and the house is council so I can call them out in the future but I am actually planning to re-decorate very soon anyway so am looking for quick fix or just to know what it may be so I can start the ball rolling to sort it.
When I plan to re-decorate I am going to use a base coat from Wickes to block the old color and 2-3 coats of light color emulsion over the top and I plan to lightly sand down and clean in between coats for a good grip so do you think that may be enough to hold whatever it is back as I did not use any under/base coat before and only a 1 coat color and it took ages to appear?
EDIT:
Some one has told me it seems like condensation which makes sense as I am able to wipe it clean and it comes back days later, what I would like to know is where or how can this happen in a bedroom, I just use a pc and tv in here and have my window open daily esp when its warm outside, cheers
I have added links to some pictures I have taken of some bad points and not so bad points for more clarification, thanks a lot.
Again I appreciate any help and I am here to answer questions, cheers
In my bedroom upstairs my wall corners and some main wall have gone patchy and smudged with what looks like a grey/white shade (walls are painted black) so its really obvious but when I wash them or spray water and wipe it disappears then a few days later it reappears in same place.
Now I did not have this issue before painting my room (2 years back) so when I painted my room black over the old blue (1 coat, no undercoat or base coat) this starting happening about a year after and now its mostly all over.
Now I know I could call a professional but I have not got the money and the house is council so I can call them out in the future but I am actually planning to re-decorate very soon anyway so am looking for quick fix or just to know what it may be so I can start the ball rolling to sort it.
When I plan to re-decorate I am going to use a base coat from Wickes to block the old color and 2-3 coats of light color emulsion over the top and I plan to lightly sand down and clean in between coats for a good grip so do you think that may be enough to hold whatever it is back as I did not use any under/base coat before and only a 1 coat color and it took ages to appear?
EDIT:
Some one has told me it seems like condensation which makes sense as I am able to wipe it clean and it comes back days later, what I would like to know is where or how can this happen in a bedroom, I just use a pc and tv in here and have my window open daily esp when its warm outside, cheers
I have added links to some pictures I have taken of some bad points and not so bad points for more clarification, thanks a lot.
Again I appreciate any help and I am here to answer questions, cheers