I want to underboard a 4x4m ceiling in a room with original coving (9.5 or if necessary 12mm board). Heaven forbid I have to get someone in to skim it, so I'd be looking to tape + hide the joins. As for the coving, as suggested sometime, somewhere I want to run some kind of board edging about 20mm from the coving and board within that - painting the outer perimiter + coving a different colour to give the impression of an extended coving profile. This would be better than burying part of the coving in plaster, however the original idea may have involve some skimming.
Q1: Any thoughts on the right edging as most stop-end I've seen assume a few extra mm for the skim coat. Can you get an exact fit for 9.5 or 12mm board, then again if the edge has a 90 degr bend-back (over board surface) would this show?.
Q2: In this day and age of 'Smoothover' and the like is there still no easier way to conceal the joins than to use jointing compound and sanding?. I've used this with reasonable results in the past but this job is something of an afterthought in a newly decorated area and I really don't fancy the dust!. Then again, given some of my past experiences with skimming I'd at least want to option of sanding as a last resort if all else fails.
Any comments on feasibility (or otherwise) welcome...
Egremont.