Hi All, I painted my bedroom in December and in the last month I have noticed a paint reaction in one particular area. At first I thought it was damp. See attached pics. The wall is an external perimeter wall that joins an adjacent ex-chimney breast. Any ideas what this paint reaction is? There appears to be some almost salt-like substance on the surface of some (but not all) of the affected areas. Thanks
1st action would be to locate the source where the moisture is getting in and causing the problem to manifest. So checking exterior areas for possible problems such as over flowing/ leaking gutters, chimney stack, condition of wall etc.
So the source must be the bath since the corner of the bath room lines up with the moisture area of the chimney breast. I have some sealant to try and fix that. Many thanks
I've just opened up the underside of the bath.... I think it's new bathroom time. Where the tiles meet the bath the seal and grout has failed. Came off in my hands. The water is collecting there so that is the source I did earlier order some silicone but I think it's well past that now I may still be able to get a temp seal so we can use the bath/shower but ultimately its 1970s and needs to come out. The Joy's of buying a "doer-upper" Thanks for your help!
Well done for quickly identifying the.source, a good air flow will hasten the drying out time required which could be a few weeks. A dehumidifier will also help speed things up.