Hi - just getting ready to insulate a section of concrete ceiling in my flat, where there is a lot of heat loss as it's below the walkway access to the flat above. I'm planning to use battens + insulation + foil-backed plasterboard... only problem is that there is a light fitting so I'll need to bring wiring through the vapour barrier to refit the light on the new ceiling.
I'm worried about compromising the vapour barrier and having moist air get through where I bring the wiring down - is there a standard way of preventing this?
Thanks!
h
I'm worried about compromising the vapour barrier and having moist air get through where I bring the wiring down - is there a standard way of preventing this?
Thanks!
h