Plasterboard/ gap advice

Discussion in 'Builders' Talk' started by shadowfax, Sep 10, 2019.

  1. shadowfax

    shadowfax Member

    Hi all,
    Being as all my plastering and building friends are away on their 10th holiday of the year (I don't know how they can afford it) and me an aging pensioner too.
    I will ask the question here.
    I am putting a stud wall into an open doorway 8ft by 3 ft.
    The big main and only question is ....have I left enough room for skimming over the wall and plasterboard. I have skimmed before but not in this situation.
    Studwall not fitted yet.
    Cheers Peter
    Photo enclosed.. IMG_1543 (2).jpg
  2. terrymac

    terrymac Well-Known Member

    The finished surface of the plasterboard should be set back a few millimetres from the finished wall surface either side / around it.
  3. blarblarblarblar

    blarblarblarblar Active Member

    Sorry Pete, I don’t understand?
  4. Wayners

    Wayners Well-Known Member

    Are you asking and one of these is the answer

    Tack some wood down length to fix plasterboard to 13mm back.

    Keep board in line with current board on the wall, but leave 2mm ish gap at joint, but put pva down the board edges to seal on both old and new..
  5. shadowfax

    shadowfax Member

    Hi, I didn't explain myself very well. Nothing unusual there.
    At the top of the picture... orange wavy lie is edge of paint.
    yellow wavy line is edge of old existing finish coat
    red line is outer corner of plaster/b
    yellow is inner corner of plaster/b
    You can probably see all that anyway.
    Have I left enough room between the yellow wavy line and straight red line for the new skim coat ..or shold it be more/wider
    I was going to put some scrim tape on the joints

    Cheers Peter.
    IMG_1543 (2).jpg ?
  6. CGN

    CGN Well-Known Member

    Set your stud work up so when the PB is screwed to it, it is a few mm lower than the existing plaster layer.

    If the wall, isn’t that big, then skim the whole wall out.

    Also. If the existing plaster is of sufficient depth, hack a few inches off each side, so you can overlap the new PB onto the old wall. Stick the overlap with foam or plasterboard adhesive, and bond out, before skimming. Very little chance of hairline cracking then.
  7. Wayners

    Wayners Well-Known Member

    Yes...your fine looking at you picture
  8. shadowfax

    shadowfax Member

    Thanks for the replies men.

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