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are you breaking through the vapour barrier every time you fix something or you just don't worry about that?
hoefla-
My walls are weird! They are fully ranked with tanking slurry for a start. Fixing to the internal walls is pretty much impossible apart from in the most desperate needs. They are 900mm thick flint walls which have been heavily repaired over the years with just about every material you can imagine, so it’s pot luck what you hit. The walls are then tanked and have 100mm insulated plasterboard on top of that.
Sam_w
I have insulated plasterboard throughout our house, makes hanging things an absolute nightmare, as can’t use anything opens up, as nothing gets beyond the 100mm of insulation. The main benefit of grip it for me is that they at least sell a little tool which cuts away enough of the insulation for the wings to open.