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-   -   Bathroom finish (https://www.askmehelpdesk.com/showthread.php?t=465550)

  • Apr 18, 2010, 07:11 PM
    hartracing390fe
    Bathroom finish
    Do I need to cement board the entire floor and walls, or just water traffic areas like the toilet, tub , and shower?
  • Apr 18, 2010, 07:30 PM
    ballengerb1

    What is the final surgace going to be. Cement board over a tongue and groove plywood screwed and glued is a great sub for ceramic tile. Don't cut corners to save $30. Wet areas must be concrete board or something like Kerdi board.
  • Apr 20, 2010, 03:51 PM
    hartracing390fe
    The finish will be ceramic tile half way up and then painted
  • Apr 24, 2010, 08:00 AM
    pattyg2

    Use cement board on the floor unless it's concrete and at least 6' up from drain in shower area.
    I used red guard on my bathroom concrete floor to serve as an isolation membrane.
  • Apr 25, 2010, 04:46 PM
    ballengerb1

    I don't think you ever told us about your existing sub floor, what is it? You can't install cement board over dimensional lumber so tell us what is there.
  • Apr 27, 2010, 04:09 PM
    hartracing390fe

    I'm replacing the entire floor because of water damage, so the base will be 3/4" plywood flooring over 2x10 floor joist.

    I know I need at least some kind of crete backer board, but there's all kinds of sub floor to put in between that and the tile.

    At totem when looking at tile they had four different kinds of impact absorbing subfloor for tile.
  • Apr 27, 2010, 07:40 PM
    ballengerb1

    Go with T&G ply glued and screwed. Your cement board is set in modified thinset and also screwed.
  • Apr 28, 2010, 03:47 PM
    hartracing390fe

    So go with tongue & groove first layer, cement board & thinset second layer, frame tub & shower, moisture barrier cement board & thinset shower & tub frames.

    Green board the rest, lay tile and paint?
  • Apr 28, 2010, 05:31 PM
    ballengerb1

    So go with tongue & groove first layer (glued and screwed), cement board & thinset second layer (and screwed)

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