we've boarded out our eves in our attic and filled the gaps and screwholes with polyfilla. i'm a bit skint at the moment and the plasterer don't come cheaply! so i was thinking of painting straight onto the plasterboard just to make it look a bit tidyer. which would be the best way?, would i need to seal it first and if so how? Would normal emulsion work or would i need to use something else? thanks
No need to skim it. I use Kilz primer/sealer on walls I have built/repaired. You can have it tinted to closely match your final color.
use 1-2 coats of a PVA (Poly Vinyl Acetate) primer. then paint however you like.
You don't need a skim coat at all. Just use 1 to 2 coats of drywall primer (cheaper than regular primer) before painting. You could also paint without priming - but the result may be poor.
