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Patch Repair (photos included)

Discussion in 'Plastering and Rendering' started by Smudge01, 7 Feb 2021.

  1. Smudge01

    Smudge01

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    Following a leaky pipe under the floor I now have to patch repair some plaster where the water has sucked into the wall. The background is like mud with straw and small stones in it.

    Should I let this dry out naturally, or use a dehumidifier? It's in a cold tucked away corner and will take a long time to dry out. Does it need to dry out?

    I'm not too fussy about getting the perfect finish as a wardrobe goes into this corner and hides it anyway.

    I guess it needs some sort of stabilizer. I was thinking of sticking some plasterboard over, then easifill. Is this okay, or what is the best approach.

    Thank you.

    upload_2021-2-7_13-55-37.png

    upload_2021-2-7_13-56-8.png
     
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  3. KenGMac

    KenGMac

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    Smudge01. good evening.

    Can I suggest you get a fan, do not bother with any heat just a fan that will move the air past and over the affected area? hy? because if you put a washing outside on the line in a flat calm it takes an age to dry, but if it is a breeze or good going wind the washing dries fast.

    As for what the "mud" is ??? nearest I can think is a material called "Wattle and Daub" a primitive method of using mud to construct a wall, the Wattle as I recall was thin strips of timber made into a frame.

    Ken.
     
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  4. Smudge01

    Smudge01

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    Thank you.

    Do you think gluing some plasterboard on that will be okay?
     
  5. KenGMac

    KenGMac

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    Can I suggest you see what happens after the wall dries out? if solid then Yes to P/Board and skim.

    Ken.
     
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  6. Smudge01

    Smudge01

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    The 'Wattle and Daub' will definitely be solid but it's a bit bumpy with highs and lows. Can I use bonding and then skim?
     
  7. KenGMac

    KenGMac

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    That should work, the bonding, probably best if the "Wattle and Daub" is badly uneven?

    As an aside? what is this Wattle and Daub attached to ? IE what is behind this material? seems somewhat unusual?

    Ken.
     
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  9. Smudge01

    Smudge01

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    Brickwork.
     
  10. Alastairreid

    Alastairreid

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    Maybe stramit board, I've only ever seen wattle and daub on historic buildings.
     
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  11. KenGMac

    KenGMac

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    Alastair, from what this image shows, there is [IMO] not enough straw??

    Agree totally W&D is very historic, indeed I am not ashamed to say I cannot recall seeing it [OK I am old, but not that old?o_Oo_Oo_O]

    Ken.
     
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  12. JohnD

    JohnD

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    Cob.
     
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  13. StephenStephen

    StephenStephen

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    Just an amateur diyer here...

    It is cob. It is not wattle and daub (there is no wattle)
    What I do in that situation is stabilise it with NHL 2 hydraulic lime plaster, build it up, then finish with lime putty plaster.
    A more purist approach would be just to use lime putty plaster.

    I'd be nervous about trying to glue anything to cob, or using modern gypsum plaster.

    I also wouldn't want to use a dehumidifier or fan to dry it before I'd stabilised the surface with plaster - hydraulic lime or better still, lime putty plaster will let it dry out naturally.
     
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