Dampness under a screed and lvt

Discussion in 'Subfloor Preparation' started by SandyFloor, Feb 5, 2013.

  1. SandyFloor

    SandyFloor Well-Known Member

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    I was wondering what would happen if a screed and lvt floor were laid on a floor with a failed dpm or damp issue. I would have thought the screed would frequently remain intact and the moisture would appear underneath the flooring and dissolve the adhesive. What do you guys think?
     
    Last edited: Feb 5, 2013
  2. coolevilangel

    coolevilangel Well-Known Member

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    my understanding of it is this
    A latex based screed isnt as affected by moisture/damp as a water based is
    moisture can still transfer through the screed albeit at a slower rate
    So latex one its more likely the addy will be affected
    A water based is more likely the screed itself will blow as it cant take moisture at all, so it would be the 1st thing to blow
     
  3. Matt

    Matt Well-Known Member Staff Member

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    what he said ;)
     
  4. g4l

    g4l Well-Known Member

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    Nice.
     
  5. dazlight

    dazlight Super Moderator

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    I've had it happen to me. Bubbles all over the place. Screed and dpm blown off the floor.
     

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