Quote:
Originally Posted by Boater Sam
But you would screw the plasterboard onto the OSB not just the studs these days and the long edges should be across studs anyway. So a stud centre to centre of 2' is then correct if using 4' X 900mm baseboards or 6' X 900mm or even 8' X 1200mm if man enough.
We used to glue a lot of board rather than nail or screw, its faster, neater and causes less damage to adjacent boards.
If tape and sponge or skim is used as a finish, the boards should be gapped 3mm all round as well.
As an aside, there is a plasterboard product that we used but can't remember its name or maker that is plastic film finished covered on one side, ideal for lining where no other finishing is used, again glue fixed to avoid fixing points showing.
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Fitting plasterboard horizontal is a pain when It comes to DIY finishing to a reasonable standard...Square edge, either fill, sand and wall paper (Hassle) Tape and fill and skim coat (Beyond most DIYers) Tape fill and feather to a wide area (An art in itself) Fit horizontal and vertical joint cover strips (Looks a mess when horizontal ones are used) Vertical joints should be staggered according to whatever is method is employed.
Fitting tapered edged plasterboard horizontal (More of a strain to tape, fill and sand horizontally) Vertical joints (Same problems as square edge unless you fit cover strips) Remember tapered edge is only tapered on the two side edges, top and bottom aren't tapered, they are the finished board thickness.
If a flat finish is required for non tapered joints then those edges can be rebated with a slight taper, just enough so's the outer surface of the scrim will be about 2mm below the paper/plaster line, clean of as much dust as possible without making any more, prime the exposed plaster with diluted PVA and just as it starts to goes off slap the scrim tape on then the first coat of filler (It's an art)
Fixing boards vertically and finishing off...Much easier all round.
I've done horizontal board fixing but only the inner skin of a double skin jobs such as sound blocker (blue) or fire blocker (red) outer skin board was always vertical.
Lawrence.