Roofer2plasterer
Member
sent to put an airbrick and internal vent into a understairs cupboard today as it was damp. Ko'd the plaster internally and knocked a hole in walls for airbrick. AS usual with these problems the cavity was being bridged by that horrible blown isulation. i put my arm into the cavity and beneath the dpc it was soaking as if it's drawing water up from the trench and the further u go up the cavity the dryer it got, to me this prooves its not coming through the externall wall but only from the ground below dpc and travelling up insulation!
Now the insulations in and no chance of taking it out what can be done??? is the only option to tank it internally? ???
Now the insulations in and no chance of taking it out what can be done??? is the only option to tank it internally? ???