I have in my boiler room a drainage pipe from the boiler that accidentally leaned against the wall. I corrected it a year ago and now water flows towards the floor drain. However, the wall still hasn't (!) dried up but seems to have gotten worse. The paint on the other side from the boiler room has peeled off and if I measure moisture, it shows the highest readings… I understand that siporex/lightweight concrete is hard to dry out, but a year!? What should I do?
It is Liwa's paint color for plaster, so it is open to diffusion. However, I might scrape off the paint on the damp part.
Has the wall only been painted with that color or is there another paint underneath it?
What you call a drainage pipe from the boiler, is it the pipe coming from the safety valve? As others have mentioned, I believe the moisture in the wall comes from another source.
Houses from 1974? At best, there's insulation under the walls then as well, not just under the floor...
whatever the source of the moisture, there's not much you can do about it. I would just scrape off the paint that has blistered and dab on some new white paint of an appropriate type for damp walls.
House from 1974? At best, there's insulation under the walls then too, not just under the floor...
whatever the source of the moisture, there's not much you can do about it. I would just scrape off the bubbling paint and dab on some new white paint suitable for damp walls.
Yes, that's right. In the floor, there was 50 mm of foam concrete embedded except in the "den part", where there was a raised floor with loose fill, where I poured a new floor with 100 mm of foam concrete. The entire floor has an LK system low-profile water-based heating that has worked great. But under the walls, I haven't checked. I'll scrape and paint, it's due time anyway....
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MathiasS said: