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  1. #1
    Join Date
    Jan 2009
    Posts
    2

    Default Kitchen tile over drywall or plywood

    We are installing a tile backsplash in our kitchen on two walls. The first area is drywalled. Can the tile be cemented directly to the drywall with thinset or does it need backer? The drywall can be “raw” or primed.

    A second area will attach the tile to the back of a cabinet. Can the tile be attached directly to the plywood? This tile will be above the sink. The plywood can be “raw”, primed, or install hardiboad backer.

  2. #2
    Join Date
    Jan 2009
    Location
    Staten Island, NY
    Posts
    11

    Default Re: Kitchen tile over drywall or plywood

    You can use thin set on drywall, but at the very least it should be primed. This will help to prevent the moisture from being wicked out of the thin set prematurely and producing a crappy bond.

    The best option in my opinion is to use a mastic with a latex additive in both your applications.

    Good Luck.

  3. #3
    Join Date
    Jan 2009
    Posts
    2

    Default Re: Kitchen tile over drywall or plywood

    Thanks, I have polymer enhanced mortar - just was not sure about need for cement based backer.

    I plan to prime the drywall and use a ¼” hardibacker on the plywood cabinet back since it’s interior grade.

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