UFH and Bitumen adhesive

Discussion in 'Subfloor Preparation' started by Trust, Apr 3, 2019.

  1. Trust

    Trust New Member

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    Evening all, any advice really appreciated.
    Removed old Marley (not checked for Asbestos but took precautions) tiles and left with the Bitumen adhesive, approx 1mm thick and looking to retrofit UFH. Type of UFH will be castellated panels laid over the Bitumen pipe sits in this then a liquid screed to cover all (from NuHeat).
    Other than digging up the floor it seems impossible to get rid of the Bitumen so my question is it ok to have UFH on top of this? Should I Arditex NA 1st? Will the UFH cause the Bitumen to melt, liquidify and smell. I did ask Nuheat and they said remove as much as possible but will be fine???
    Thanks
     
    Trust, Apr 3, 2019
    #1
  2. mjfl

    mjfl Well-Known Member

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    Get it ground off
     
    mjfl, Apr 3, 2019
    #2
  3. Trust

    Trust New Member

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    Thanks mjfl, what would you recommend to grind it off?
     
    Trust, Apr 3, 2019
    #3
  4. merit

    merit Well-Known Member

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    I would latex over it. That probably isn’t thick live bitumen if they were vinyl tiles


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    merit, Apr 3, 2019
    #4
  5. Trust

    Trust New Member

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    Cheers merit, yeah it's only about 1-2mm thick max in places.
     
    Trust, Apr 3, 2019
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  6. Paul webb

    Paul webb Well-Known Member

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    The panels may be designed to prevent losing the heat through the subfloor ,if so,the bitumen shouldn't affect it, if not, have a look at Sikka rapid dpm
     
    Paul webb, Apr 3, 2019
    #6

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