Can anybody explain this on?
Old plaster off, dryzone injected, plasterboard on and skimmed.
10 days later these damp spots are appearing in the same place they were in before they came in to 'fix' the issue !
Notes:
1a) Wall is internal (between 2 reception rooms, solid brick)
1b) Damp spots only appear to be where dot and dab is (checked by tapping)
2) After replastering, damp spots came back within 10 days.
3) I got a huge dehumidifier in for 4 hours and could barely notice the damp spots, came back within hours after turning off.
4) Rooms have average of 60-70% humidity
5) House has barely any ventilation
6) Notice in one pic, the damp spot ends where the skirting board is, I took it off for this photograph. (Condensation , not damp?)
They want to come back and redo it but with a membrane between the brick and plaster, but I'm hesitant because they don't appear to know much about condensation and they never even brought condensation up when quoting, I was told it was rising damp.
After doing research, I'm entirely convinced I would have been better off installing ventilation and perhaps positive air ventilation (fan in loft pushing fresh air in to the house).
Can anyone give me their thoughts?
Old plaster off, dryzone injected, plasterboard on and skimmed.
10 days later these damp spots are appearing in the same place they were in before they came in to 'fix' the issue !
Notes:
1a) Wall is internal (between 2 reception rooms, solid brick)
1b) Damp spots only appear to be where dot and dab is (checked by tapping)
2) After replastering, damp spots came back within 10 days.
3) I got a huge dehumidifier in for 4 hours and could barely notice the damp spots, came back within hours after turning off.
4) Rooms have average of 60-70% humidity
5) House has barely any ventilation
6) Notice in one pic, the damp spot ends where the skirting board is, I took it off for this photograph. (Condensation , not damp?)
They want to come back and redo it but with a membrane between the brick and plaster, but I'm hesitant because they don't appear to know much about condensation and they never even brought condensation up when quoting, I was told it was rising damp.
After doing research, I'm entirely convinced I would have been better off installing ventilation and perhaps positive air ventilation (fan in loft pushing fresh air in to the house).
Can anyone give me their thoughts?