I've just replaced a wooden access panel in my concrete ceiling with 0.5 inch plasterboard. I'm wondering whether I've screwed up becuase there are a couple of half inch gaps between the edge of the plasterboard and the concrete where the old plaster fell out.
Will the plasterer be able to skim these gaps or will I have to find some way of giving the plaster something to "take" to ?
Will the plasterer be able to skim these gaps or will I have to find some way of giving the plaster something to "take" to ?