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  1. #1
    Join Date
    Dec 2011
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    24

    Default Tiling a backsplash

    Hi, this is more of a tiling question I think, maybe someone can advise me. I'm putting a tile backplash up the wall at the back of our counters and the wall is uneven. Because of this, I've decided to mount the tiles with blobs of mortar on the back of the tile rather than comb the mortar out on the wall. I've never really known if this is acceptable, or if there are drawbacks to this approach to mounting tile.Can anyon tell me?

    Thanks!
    Dave

  2. #2
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,360

    Default Re: Tiling a backsplash

    Dave,

    The method you are describing is called 'dot setting'

    Yes it can be done. Drawbacks - 1- it tougher to get the tiles plumb and flat with each other. A lot tougher. 2- You have to use cement thinset that comes in a bag and you mix with water. Pre-made mastic shrinks when it dries and will make the tiles uneven. 3- they are more likely to pop off the wall.

    Do remember t leave a 1/8" gap between the tiles and the counter, tiles and cabinets, tiles and side walls, tiles and window trim. This gap gets caulked closed with flexible sealant.

  3. #3
    Join Date
    Sep 2009
    Location
    florida
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    598

    Default Re: Tiling a backsplash

    Go here to find you answer.

    http://www.johnbridge.com
    Gizmo

    Cut it 3 times & it's still to short.
    Inventor of the Miter Master Plus.

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  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
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    5,081

    Default Re: Tiling a backsplash

    Floating the tiles like you want to do is not the best way to do it, for the reasons listed above.

    A better way is to remove the drywall to the framing and start from scratch: Moisture barrier, CBU and tiles.

    Only this method will give you a great looking back splash.

  5. #5
    Join Date
    Dec 2011
    Posts
    24

    Default Re: Tiling a backsplash

    Hi,

    Thanks for the advice! All good reasons, #3 is the one I'm most concerned about. My unevenness in the wall begins with the studs, and fixing some of those introduces issues with a few electrical boxes... I figured the challenge of floating tiles and making them even could be prefereable to the work of straightening the wall...

    Thanks again for the advice, I appreciate it!
    Dave

  6. #6
    Join Date
    Dec 2007
    Location
    Tennessee
    Posts
    1,381

    Default Re: Tiling a backsplash

    Why not just put on a coat of thinset and then take a long straight edge and screed the wall flat. When the thinset dries, then another layer, notched and set the new tile in it.

  7. #7
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,360

    Default Re: Tiling a backsplash

    Thinset has a maximum working total depth of 1/4" Hence the 'thin' part of thinset.

  8. #8
    Join Date
    Jan 2010
    Location
    Northern Virginia
    Posts
    975

    Default Re: Tiling a backsplash

    Get some unmodified thinset, the kind for setting stone, add masonry sand until it's a stiff mortar, and float the wall with that. Thinset is very portland-rich and can take extra sand. Use bonding agent on the wallboard.
    You could as well use Structolite basecoat plaster for floating. A 3' or 4' Darby float is probably all you would need tool wise. It's a magnesium straightedge for rodding browncoat plasterwork.
    Casey
    Remove not the ancient landmark, which your fathers have set.

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