Bathroom remodel

Discussion in 'Shower & Bathtub Forum & Blog' started by CHAPSKIP, Nov 7, 2007.


    CHAPSKIP New Member

    Nov 6, 2007
    Is it okay to install a prefabricated shower over ceramic tile. Also, how would you install a marble threshold to transition from ceramic tile to carpet. Should it be installed on cement board or the subfloor which is plywood. Which type of adhesive should I use?
    thanks for help,
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    The pre-fab bases require a flat surface. If the existing tile was a floor, and not an old shower, then it should be flat. It also requires level, so check that. If it was an old shower you are hoping to reline, not a good choice.

    While you could probably put a marble base directly on plywood, it would probably be better if it was over cbu. Thinset or a medium bed mortar would be the best choice. You want all the minor imperfections filled in so it is 100% supported, and gluing it down isn't likely to do that. Mortar will.
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