Damp, crumbling and cracked plaster - how to fix?

Discussion in 'General Chat' started by zed4, May 3, 2017.

  1. zed4

    zed4
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    Good morning all,

    Any builders or DIY experts able to offer some advice please?

    Our shower drain was loose and as a result water has run under the shower tray and down into the hallway below. The plaster is now damp and crumbling away with a long crack along the edge of the plasterboard.

    What's the best plan of action to rectify? Does it just need replastering and painting, or will it need more serious surgery?

    Just want to get an idea of what's involved before I get in some tradesmen. I'm also wondering whether to claim on insurance, or just pay myself.

    Thanks,

    Dan

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  2. 494930

    494930
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    Not an expert, but I imagine the best way to rectify that would be to replace the affected plasterboard and skim over.
     
  3. Naaktgeboren

    Naaktgeboren
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    That looks well beyond a touch up repair, you'll need to have all that cracked soggy plaster hacked off, once the fault is fixed you can reboard and plaster. Insurance will cover this if you plan to go that route, it won't be quick though, we had an issue similar a few years back and it took near 10 weeks!
     
  4. zed4

    zed4
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    That doesn't sound good. I was hoping a reskim might be sufficient. It would be a massive job to remove the plasterboard, I think the ceiling would need to come down!
     
  5. PsyVision

    PsyVision
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    I'd hack the plaster off, PVA, skim fill it and then paint to make good but then I don't know if the plasterboard is any good still.
     
  6. Naaktgeboren

    Naaktgeboren
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    I'm guessing the repair to the shower tray has already been made, in your shoes, I would start hacking away the obviously damaged parts and see where that get's you. It's hard to tell how far the water has penetrated. You may find that only a section needs to be replaced which is a DIY job, just attach board to joists, tape then get a plasterer in to finish. Hard to tell without seeing it though.
     
  7. zed4

    zed4
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    Yes, leaking shower is now repaired!
     
  8. Wahreo

    Wahreo
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    Best thing to do is dig out what you can and have a look. The plasterboard might need repplacing in parts. You'll probably need a bit of bonding plaster here and there, a bit of scrim tape and a bit of PVA. Potentially applied on neat to the scrim tape.

    Then it can be filled and sanded using a jointing compound like Easi-Fill.

    A bread and butter job for someone who knows what they are doing, a huge task for an amateur and it'll probably crack again after a couple of seasons of expansion and contraction.

    If you want step by step advise then dig it out and post pics.
     
  9. zed4

    zed4
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    Good advice, thanks. I will see what I can dig out. Will also get some people round to quote in the meantime.
     
  10. zed4

    zed4
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    I dug a bit more out this morning quickly before work. The board looks ok, not great, but I think salvageable. So I think I might get away with just a replaster.

    IMG_2371.jpg IMG_2372.jpg IMG_2373.jpg IMG_2374.jpg
     
  11. Wahreo

    Wahreo
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    Looks like an angle bead on the horizontal and vertical sections which is causing a crack.

    Two choices really- rip the lot out and start again which would give a flawless finish or try to knock out the cracked plaster to reveal the angle bead and skim it up.

    I know what I would do
     

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