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skimming over extremely dry lime plaster

Discussion in 'Plastering and Rendering' started by markyyyyyy, 17 Oct 2020.

  1. markyyyyyy

    markyyyyyy

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    House was built in 1902

    The lime plaster is extremely porous and will suck all moisture out the multifinish

    What is the cheapest yet effective way in dealing with this before skimming with multifinish?

    thanks
     
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  3. bennymultifinish

    bennymultifinish

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    lime and gypsum don’t go.
     
  4. markyyyyyy

    markyyyyyy

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    what would you do?
    Dot and dab plasterboard (would 9mm be ok for wall or 12.5?) then skim?
     
  5. bennymultifinish

    bennymultifinish

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    depends stone or brick ?
     
  6. markyyyyyy

    markyyyyyy

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    Hi. It is on an internal wall and my house was built in 1902 - am i getting confused and maybe its not lime?
    I'll get a picture now...
     

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  8. bennymultifinish

    bennymultifinish

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    if it’s only internal walls and theres no hollows or blown bits crack on with multi, providing theres no signs of rising damp....mesh any cracks and vulnerable areas , around and above doors etc. soak it in neat pva with some sand in . leave 24 hrs and skim.
     
  9. markyyyyyy

    markyyyyyy

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    great thanks for your help

    there is one quite big crack from previous times as a result of subsidence - crack is in corner of room. What would you fill this with?

    Also, i have some sharp sand, would that be ok to use with neat pva?
     
  10. bennymultifinish

    bennymultifinish

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    fill the big crack out first with whatever you have , multifinish if you have it . then tape over it vertically and pva and skim.
     
  11. markyyyyyy

    markyyyyyy

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    Ok thanks.
    So just neat pva, not pva and sharp sand?
     
  12. bennymultifinish

    bennymultifinish

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    you could chuck some builders sand in.
     
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