Asphalt floor

Discussion in 'Subfloor Preparation' started by Braz, Jul 8, 2020.

  1. Braz

    Braz Member

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    Been to view a job today which I’m fitting spacia tiles in next week. Originally two rooms, the builders have dropped the wall and put a steel in marking it one room. It’s asphalt in both sides up to the wall that’s been removed. I’ve got a 20mm height difference between the two. I’ll post some pictures. How’s best to go about prepping it. I was going to uplift the higher side which would bring the original concrete slab flush with asphalt. Screed the concrete because it’s really rough,Dpm and then screed over the whole floor.
     
  2. dazlight

    dazlight Super Moderator

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    Sounds like a good plan mate. Just Dpm over the Ashpalt approx a meter
     
  3. Braz

    Braz Member

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    cheers daz
    Also there is a channel we’re the concrete block was it’s now slightly lower than the asphalt and there’s is vis queen over the bottom course. Can I just screed over this?
     
  4. Spacey

    Spacey Super Moderator Staff Member

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    No the screed will crack cut it out fill with A46 or simlar and DPM over it
     
  5. Spacey

    Spacey Super Moderator Staff Member

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    Don't go over 6mm thickness with your screed and needs to be a low compressive strength
     
  6. Braz

    Braz Member

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    Can I go over 6mm if I use uzin 110 over the asphalt?
     
  7. dazlight

    dazlight Super Moderator

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    I have with a few gypsum about 10mm and it’s been ok.
     
  8. Spacey

    Spacey Super Moderator Staff Member

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    That must take a life time to dry 110 is 20 hours to dry at 3mm and an extra 20 hours per mm after that I sh×$ you not :eek:
     
  9. dazlight

    dazlight Super Moderator

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    We always give them 2 days anyway mate
     
  10. merit

    merit Well-Known Member

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    That’s a good idea. I think we might start doing that


    Sent from my iPhone using Tapatalk
     
  11. Spacey

    Spacey Super Moderator Staff Member

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    At 10 mm its a week :eek:
     
  12. dazlight

    dazlight Super Moderator

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    Air flow
     
  13. Spacey

    Spacey Super Moderator Staff Member

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    Yeah a hurricane :p
     

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