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Subfloor for tiles

  • 15-04-2018 10:09am
    #1
    sept09baby
    Registered Users, Registered Users 2 Posts: 699 ✭✭✭


    Getting kitchen retiled. Base is a concrete floor but there are uneven patches probably about 1-3mm in depth.

    How level does the subfloor need to be? My boyfriend thinks it'll be fine cos there's no big dips etc


Comments

  • #2
    noel100
    Registered Users, Registered Users 2 Posts: 358 ✭✭noel100


    Use floor leveling compound. Make sure all loose debris and dust is clean. Can fill all in level off.


  • #3
    sept09baby
    Registered Users, Registered Users 2 Posts: 699 ✭✭✭sept09baby


    Yes i bought the levelling compound but he doesn't think it's needed cos the differences are so small


  • #4
    househero
    Registered Users, Registered Users 2 Posts: 1,094 ✭✭✭househero


    sept09baby wrote: »
    Yes i bought the levelling compound but he doesn't think it's needed cos the differences are so small

    Probably doesn't need doing. But if you can see the difference it's a lot bigger than a couple of mill. Get a level and measure it.

    All that will happen if it's not level is more adhesive will have to be used to fill the dips. If you use a lot, the floor will crack, which breaks tiles.

    Depending on what levelling compound you got you usually clean the concrete, put down a primer and if the dips are more than 3mm you add a latex additive.

    Get your tiler to look at it, if he's seen it already and said nothing. It's fine.


  • #5
    Kavanagh Tiling
    Registered Users, Registered Users 2 Posts: 5 ✭Kavanagh Tiling


    househero wrote: »
    Probably doesn't need doing. But if you can see the difference it's a lot bigger than a couple of mill. Get a level and measure it.

    All that will happen if it's not level is more adhesive will have to be used to fill the dips. If you use a lot, the floor will crack, which breaks tiles.

    Depending on what levelling compound you got you usually clean the concrete, put down a primer and if the dips are more than 3mm you add a latex additive.

    Get your tiler to look at it, if he's seen it already and said nothing. It's fine.

    I can echo this. Your tiler should know!


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