Tiling on cracked skimmed plasterboard

[jonas123]

Hi All,

I'm just about to start some kitchen tiling. I've been knocking some old tiles off the skimmed plasterboard, and some of the skimming has come off (see photo). What's the best course of action here? Remove all the broken skimmed areas and work from there? Or try and remove all the skimming from the tiled area?

Thanks,

 

[Boggs]

If the plaster skim is loose then remove it all, it looks like it’s coming off easily in the picture.

The board looks like moisture resistant board, this needs to be primed before it’s skimmed otherwise the plaster doesn’t stick.