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Rendering a paint wall

Discussion in 'Plastering and Rendering' started by martin hill, 23 Oct 2019.

  1. martin hill

    martin hill

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    Hi All

    Front of house is painted brick and we want to have it silicone rendered. I have seen other sites where mesh is fixed to the wall to provide a key. Its a sandtex smooth paint that i did myself and it's on solid so scraping off looks like a no go. The thing that is bothering me is i live on a main road with a lot of HGV traffic so vibration is an issue. Unless the mesh fixings very close together i worried the render may blow over time. Would it be better to battern out and render board first.
     
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  3. bobasd

    bobasd

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    get a professional renderer in to do the job.
     
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  4. Alastairreid

    Alastairreid

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    Martin, the silicone render grips to the mesh which in turn is plugged to the wall, the render can sit quite happily independent of the wall...thats the purpose of the mesh.
    Same theory applies when rendering over meshed dormer cheeks, the render sits on the mesh independent of the wood.
     
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  5. martin hill

    martin hill

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    Thanks. Bob i not doing myself. Just wanted to know the best way so can let renderer know. Having work done on the house i have found to be the same as a car. If when someone turns up to quote and you have an idea of what needs doing you can weed out the cowboys.

    Alastair. Thanks also. Have been looking at the ribbed stainless steel mesh. Dearer but more of a solid structure. Plus the ribbed rigid mesh i can fix myself saving on the cost of a tradesman doing. Now just wondering if it better to wait till New year as the extra cost of covered scaffold going to be expensive. The joys of living in rainy Manchester.
     
  6. lostinthelight

    lostinthelight

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    I used expanded stainless steel mesh sheets which seems to gives more grip for the render and fixed with ss screws and penny washers, the fixings were from TS who were far cheaper than SF at the time .
     
    Last edited: 26 Oct 2019
  7. Alastairreid

    Alastairreid

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    Render mesh is perfectly adequate for your surface prep Martin.
    S/s mesh ...expamet lath is overkill and used to stabalise poor substrate.
    Take advice from your contractor.
     
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