Concrete floor.

Discussion in 'Subfloor Preparation' started by Lee bond, Mar 28, 2021.

  1. Lee bond

    Lee bond Well-Known Member

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    Ecocore
     
  2. tarkett85

    tarkett85 Well-Known Member

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    Go with a traditional dryback, once you get the subfloor suitable for the click system it’ll be good enough for a glue down those click systems are a waste of money in my opinion and need an absolutely flat floor to stand any chance of lasting.


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  3. Lee bond

    Lee bond Well-Known Member

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    Hi. Can I use ardex na for a 15mm difference down one side of floor?
     
  4. Rugmunching

    Rugmunching Well-Known Member

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    I wouldn't go anymore than 10mm in one hit with the NA
     
  5. Lee bond

    Lee bond Well-Known Member

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    Will it crack?
     
  6. Neilydun

    Neilydun Well-Known Member

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    Ive done 30mm with granite in one hit.
    I am a chancer though ;)
     
  7. Lee bond

    Lee bond Well-Known Member

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    Can you add water to ardex na in hot weather?
     
  8. tarkett85

    tarkett85 Well-Known Member

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    No


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  9. Rugmunching

    Rugmunching Well-Known Member

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    [Face palm]
     
  10. Rugmunching

    Rugmunching Well-Known Member

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    :D you're the kind of guy to give spacey a heart attack
     
  11. Lee bond

    Lee bond Well-Known Member

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    Hi. Floor layer came and did the floor.

    He used ardex na. It was drying when he mixed and added a bit of water.

    Now it's been done it's still soft on top.
    Will this go hard?
    He fobed me off saying it's due to moisture. I know that na is moisture resistant and doesn't effect it.
     
  12. Rugmunching

    Rugmunching Well-Known Member

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    Shouldn't add water to the mix.
    That's where the water in the mix has risen to the top, it's stays soft. Before you top that up you'll need to remove the soft stuff
     
  13. merit

    merit Well-Known Member

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    Oh dear


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  14. dazlight

    dazlight Super Moderator

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    How much water did he add? Half a cup would be ok
     
  15. Lee bond

    Lee bond Well-Known Member

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    Hi daylight.

    I think he added about a bottle of water to about 3 bottle and powder mixes?
     
  16. Lee bond

    Lee bond Well-Known Member

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    Hi all. The floorers came back and chipped a bit of the floor up but instead of getting up the soft bits of latex they just put a feather edge compound over and said that it would ok to lay karndean ontop when it dries?

    To me alarm bells started. I think that what he has done is wrong in putting hard stuff over soft. Any advice please?
     
  17. Distinctive Adam

    Distinctive Adam Well-Known Member

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    Feather edge can go over screeds etc
     
  18. Lee bond

    Lee bond Well-Known Member

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    Will latex slc go hard if water has been added?
     
  19. Lee bond

    Lee bond Well-Known Member

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    Can anyone help.

    I've had ardex na put down but is still soft in places and I've told the floorer that I'm not happy and needs to come up. He has said that he won't take it up as it'll be fine and has laid 2- 3mm of mapei na down on to it.

    Is this acceptable and will it stand upto the weight of furniture on top of kardean opus?
     
  20. Rugmunching

    Rugmunching Well-Known Member

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    How soft we talking?
    Soft enough to push you finger into it or soft when you rub a key (for example) across it?
     

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