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Damp Proofing

Discoloured/ peeling wall paper in bathroom

Anonymous user 28/02/2024 - 3.48 PM

We live in a mid terraced house which has a small downstairs bathroom which has a party wall on one side and an exterior wall on the other. The walls on these 2 sides feel cold and possibly damp to the touch when compared to the other 2. The wall paper in this bathroom was replaced 3 weeks ago and is already becoming discoloured and beginning to peel. The plaster underneath has a black wipeable substance on it. The bathroom does have an extractor fan which initiates when the light is turned on and terminates when the light is off. There are no opening windows in the bathroom. We initially thought the the toilet cistern or pipework was leaking but the spread of discoloration seems to be too vast for this to be the case and a plumber cannot find a leak. What course of action would be best? i presume at the very least the bathroom wallpaper will need stripping and replacing but what remedial work may be needed along the way. Any advice gratefully received and I am happy to provide further info.

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4 Answers

ROBERTO'S

Rating: 5 out of 5
Birmingham
Is there a radiator in the bathroom? A bathroom without a window is not the best thing and without a proper ventilation you will always have these kind of problem. First issue: you fan should be at least a timed fan or with a humidity sensor. I would recommend an extractor fan with at least 100m3 per hours of suction and time at lrast 10 minutes after turning the light off, best to get a new fan with humidity/moisture sensor, so she will stay on until the level of humidity is normal. Second: having wall paper in a bathroom without windows is not the best job overall. I would recommend to remove it and paint with bathroom painting. The moisture at the moment goes on top of your wall paper and get wet,this is the reason why it is peeling off. If you paint instead the walls can breath and give these sort of natural exchange. Is it your wall to the outside insulated? do you know if it is still old stile or with the insulation between the two brickes?
Answered7 April 2020
6

Owen Preservation

Rating: 5 out of 5
Seaham
Roberto's and Paul's Geary have both answered this well with good explanations and possible solutions. I would only add that condensation issues are never 'cured' as such, only controlled. All the best, Owen Preservation
Answered15 April 2020
1

Anonymous user

Have a servey done They are the experts
Answered7 April 2020
0

Paul Geary Plastering and Building

Rating: 5 out of 5
Rochford
It sounds like your room is suffering from condensation. If the external facing is wall solid brick construction, it will suffer with heat transfer from the out side through the wall into the room. This creates condensation which is causing moisture build up on the wall damaging the interior decorations. I would suggest stripping the wall paper back and then fixing an insulated plasterboard to the external wall. Make sure you have a vent within the room to help with humidity and air flow. Once plastered and decorated this will cure the issues.
Answered12 April 2020
0