The UK DIY FAQ gives the following advice for plastering a ceiling I quote
"Ordinary plasterboard should be mounted with the "bad" side (where the joins between front and back paper are) downwards if it is intended to skim the whole surface, because plaster sticks to this side better."
However on the plasteboards I have just purchased (Knauf) it is written on the bad side I quote:
"Plaster/Decorate other side only"
What gives ?
Many thanks
Mike Saunders