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Levelling garage floor with very little drop...

Discussion in 'Building' started by potato80, 3 Mar 2021.

  1. potato80

    potato80

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    Hi folks.

    Planning to turn my concrete garage floor (pictures A, B, C & D) into a flatter surface, so it can be more of a functional space. This isn't a conversion.

    Garage is three internal walls, and cr*ppy wooden external double doors.

    Moisture levels are below 14% throughout, and generally around 2%.

    I don't believe there's a DPC/M, but - despite this - it's generally very dry in there and no sign of damp whatsoever.

    The problem: there's only a 2cm drop between the garage floor and the internal floor (picture E), for me to work with.

    What's the best way to level it, so I can lay 10mm engineered wood flooring? Here's what I plan, so far...

    I plan to floor-grind and then clean the whole area.

    Screed with either self-leveling latex or self-levelling acrylic.

    Then lay the underlay and 10mm thin flooring.

    Also, at the front of the garage, where the doors are, I assume I just build some wooden battens against the ground to stop the SLC from flowing against the doors?

    Thanks in advance for any tips!!
     

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  3. Tigercubrider

    Tigercubrider

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    Don't know.
    But is there some kind of epoxy paint/floor leveller that will be a combined DPM?

    When we did a garage conversion at a mate's we roughly levelled a floor to remove links, then used a bitumen paint. we laid a strong poly DPM over that and built the floor floating on rock wool. You have almost no room for insulation. The floor could be really cold.
     
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  4. potato80

    potato80

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    Thanks for your reply

    It will be cold, and if I was doing a full conversion I'd obviously pull the existing floor up and check for/lay a DPM and full insulation.

    But it's rather to make it look better and be a bit more functional.

    I think I can get away with it, but just wanted to check.
     
  5. Tigercubrider

    Tigercubrider

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    So will you have 2cm between the existing floor and the underneath of the lording? Or is that top to top?
     
  6. potato80

    potato80

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    I've currently got only 2cm between the level of the internal house floor and the level of the garage concrete (you step from one to the other via a doorway).

    I figure a 5-10mm SLC and then 10mm thin wood panels applied to the garage concrete should equal (and hopefully not exceed) the 20mm I've got to play with.
     
  7. jacko555

    jacko555

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    Not a builder.
    A liquid epoxy dpm then latex screed. Sounds thin
     
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  9. williamglossop

    williamglossop

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    Could u tile it? Even use wood effect tiles.
     
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  10. potato80

    potato80

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    Yeah I could tile it happily. I assume it's best to still level it with an SLC before though?
     
  11. potato80

    potato80

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    Cheers. Hadn't considered liquid DPM beneath the latex screed
     
  12. williamglossop

    williamglossop

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    Yeah, but depends how far out of level it is. If its only a few mil here n there, u should be able to sort it with adhesive. U should also put a piece of rubber mat down for a few days. Then check under it after say a week. If there is patch, then you've got moisture in your floor and no type of flooring will last long.
     
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  13. potato80

    potato80

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    Cheers, I'll get on that today

     
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