HandyJon
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Am I right in thinking that plastering on walls that have been painted, especially with flaking paint is a no-no.
Just been stripping some wallpaper and finding that the skim coat is just coming off easier than the paper! Initially thought it was damp that was causing all the dull noises when tapping the walls. It turns out that the plaster had blown due to it not sticking to the wall in the first place! In some places there was wallpaper under the skim. Nice skim coat, shame about the lack of preparation.
What's the best method of fixing this, 1) removing the base coat and starting again, or 2) sand down to remove all paint and PVA the walls then re-skim, or 3) something else.
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