I have installed a new plasterboard ceiling and since one of the walls was not straight there is a 15-20mm gap between the board and the wall. I need to seal the perimeter of the ceiling with acoustic mastic so I think it should be no more than 10mm gap.
I was thinking to use a plasterboard corner or edging strip to extent the board towards the wall and fill it in with plasterboard filler.
Any ideas on how to fix it?
I was thinking to use a plasterboard corner or edging strip to extent the board towards the wall and fill it in with plasterboard filler.
Any ideas on how to fix it?