Pebble shower floor

Discussion in 'Shower & Bathtub Forum & Blog' started by sanddab, Aug 10, 2011.

  1. sanddab

    sanddab New Member

    We are redoing our shower and are planning tile walls and a pebble-grout floor. Folks at the tile shop warned that the pebble floors were very prone to mildew. Any experience or ideas regarding this problem?
    Thanks Jim
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    New England
    A couple of things: with tile, the recommended slope is 1/4" per foot, but with a pebble floor, you probably want to nearly double that to account for the potential high really want it to drain. Then, because there is a lot of grout, you might want to consider using a surface waterproofing membrane, either a fabric or paint on the setting bed to limit how far moisture can penetrate. It would be expensive, but you might consider using an epoxy grout, which is pretty much impervious, won't absorb moisture, and therefore doesn't support moisture. You might want to check out for some thoughts as well.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Cave Creek, Arizona
    ANY surface that can "trap" water will be prone to mildew, and I doubt that you will be able to construct the floor and NOT have low, or dammed up, points
  4. johnfrwhipple

    johnfrwhipple Bathroom Design & Build - North Vancouver, B.C.

    North Vancouver, BC
    Post(s) deleted by John Whipple
    Last edited: Mar 18, 2014
  5. louistoth

    louistoth Guest

    Recently I renovate my bathroom and use river rock tiles for creating a pebble floor but I realize that the floor not cleaned out properly. Can anyone suggest me what should I do?
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