3mm, 5mm skim ? Will skim 'cover up' my 'diy' work..

[kitessurfer]

Hi all,
Once I complete plasterboarding out the new room, once my lovely garage, I'm getting in a pro to skim all the walls/ceiling. Do I have a choice of depth of the skim?
Can skimming correct some of my plasterboarding mishaps, i.e. if I didn't quite get the boards around the window 100% square etc?
I checked this site and boarding looks a bit like mine, few gaps here and there, perhaps not quite level..
http://www.ultimatehandyman.co.uk/PLASTERING_BEADING.htm

thanks for any advise.

I plan to use blown poly wall paper which should also help to cover up..

thanks all!
KS

 

[Richard C]

You can cover up mistakes on PB quiet easily, it’s just the way you do it that’s important. A skim of Multi or Board finish is around 3mm thick overall; you can push this a little locally to take care of slight unevenness but 5mm is pushing it a bit; put it on too thick in one hit & it will craze & crack & you will end up with lumps & bumps. Best way around it is to level out the problem bits locally with Multi/Board Finish (or even Bonding if it’s that bad!) & then skim over the whole lot again; but this is obviously more work. If you’re getting a pro in, ask their advice first & don’t do anything yourself unless you clear it with him.