Lignite in slabs

Discussion in 'Subfloor Preparation' started by Scf, Jul 20, 2022.

  1. Scf

    Scf Well-Known Member

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    Whats everyone's go to prep for lvt when lignite is in the slab?

    Being honest I'd not heard of it until 12 months ago when we had a rep out so probably gone over many over the years.

    Now I know I'm seeing it more and more.
     
  2. merit

    merit Well-Known Member

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    Roll out the underlay and float something over it
     
  3. Scf

    Scf Well-Known Member

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    How come? Do you know a system for lvt?
     
  4. tarkett85

    tarkett85 Well-Known Member

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    Dig it out and replace with a new concrete base that doesn’t contain lignite, welcome to hell.


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  5. Spacey

    Spacey Super Moderator Staff Member

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    2 coats of uzin 404
    Prime and screed
     
  6. tarkett85

    tarkett85 Well-Known Member

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    Sshhh I didn’t get to see the fear yet


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  7. Scf

    Scf Well-Known Member

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    The fear was there!! Haha

    Same script if its still showing damp from construction moisture??
     

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