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Hardibacker on concrete

Discussion in 'Building' started by 600rob, 17 Aug 2019.

  1. 600rob

    600rob

    Joined:
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    Location:
    Middlesex
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    I contacted the manufacturer about using hardibacker directly on top of a concrete floor to serve as a flat base before tiling.
    They advised me that they dont recommend using it on concrete but didn't say why.

    Does anyone know why this might be?
     
  2. 23vc

    23vc

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    Probably because it wouldn’t be solid bedded and you’d get weak spots, why would you want to attempt it? Just Self level it.
     
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