Damp Proofing

Mysterious Damp Patches on Floorboards

Anonymous user 28/02/2024 - 3.57 PM

When I first moved into this house, mysterious patches of water (like a fine mist) would appear on TOP of the lino in the kitchen. I checked the plumbing but couldn't find a leak. I ended up lifting the lino to get to the floor boards but the floorboards appeared to be bone dry however as time has gone on, weird damp spots have appeared but they look like they are coming up from *underneath* the floorboards, from the subfloor. The floor boards do not feel wet from the surface but they do feel ridiculously cold in places. We had an independent damp surveyor in last year who advised that we get new airbricks as the subfloor humidity was very high. We have done this and the kitchen feels draughty now therefore I assume the new airbricks are working, however the damp patches have not disappeared, in fact new ones appear at times and then disappear! Does anyone have any idea what is causing this? Do I need to get another surveyor or a builder out to look at the issue? The ventilation in my house is quite poor with high moisture levels through out. We also have a slug problem in the kitchen. Could there be something else causing the damp issue? It's really bothering me, at this point I just want to rip everything out!