I have re built the outer studded walls of my bathroom and insulated them. I had to remove a portion of new plasterboard to fit the new electrics and found a couple of areas of the foil backing was wet on the outer wall but the inner was dry.
Any ideas or suggestions?? I used new loft insulation, is that the problem?
The plasterboard is 9.5mm
Steve
Any ideas or suggestions?? I used new loft insulation, is that the problem?
The plasterboard is 9.5mm
Steve