Installing engineered wood on old floorboards

Discussion in 'Wood' started by HappyChimp, Oct 15, 2020 at 2:26 PM.

  1. HappyChimp

    HappyChimp Member

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    Hi,

    It seems every website I find gives different advice. Its a 1930s house with not too level floorboards.

    I'm leaning towards 6mm ply then 14mm engineered wood floated on top. Does this sound ok? Should I also have a moisture barrier?

    Ta much
     
  2. dazlight

    dazlight Super Moderator

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    On floorboards no you don’t need one. Is the floor flat ?
     
  3. HappyChimp

    HappyChimp Member

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    Ok thanks for the info.

    I wouldn't say it was flat. Some floorboards are cupped so there's a 2-3mm lip compared to the board next to it. There's also a 3mm lip where one room transitions to another.

    There's a general slope to one room of 10mm over the length of my 1.8M spirit level.

    How bad is it? Go on Doc tell it to me straight ;)
     
  4. dazlight

    dazlight Super Moderator

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    Sand down high board edges
    9mm ply and if needed fibre screed to get levels
     

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