curbless shower

Discussion in 'Shower & Bathtub Forum & Blog' started by tucker2, Oct 24, 2004.

  1. Groutman

    Groutman Tile it Grout it Caulk it

    Messages:
    7
    Location:
    Spokane, Washington
    Wow that is a great deal of work. It looks like John has done this before and has covered all of the steps. Great info Thanks.....
  2. johnfrwhipple

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

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    "Have you ever build a curbless shower before?" simple question ASK IT!!!

    Post(s) deleted by John Whipple
    Last edited: Mar 18, 2014
  3. johnfrwhipple

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

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    Grading large format tile for a curbless shower

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  4. johnfrwhipple

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

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    Pictures of our newest Vancouver Curbless Shower Project

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  5. johnfrwhipple

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

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    West Vancouver - British Properties Barrier Free Home

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  6. Wren Thomos

    Wren Thomos New Member

    Messages:
    3
    Location:
    Georgia, India
    Does anyone have any input on the pros and cons of floor-level or "curbless" showers? Of course the American Disabilities Act (ADA) showers allow wheelchair access into the shower for the disabled, and is a really sharp, contemporary, cutting-edge look, but under normal circumstances, are they likely to leak out into the room if the gentle slope to the drain is not effective enough? Under abnormal circumstances, has anyone ever heard of devastating problems caused by sewage backup and there was no "curb" to catch the overflow? Please help, I must decide soon.
  7. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    Regardless of curb or not, the shower area requires at least a 1/4"/foot slope to the drain. If you position things properly, you should not get any water out of the room. If your sewer backed up, a curb may not help at all, so I'm not sure I'd consider that a problem or not.
  8. johnfrwhipple

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

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    Curbless Shower Grading Concerns

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  9. johnfrwhipple

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

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    Neo Angle Curbless Showers

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  10. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    Location:
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    The key to any slope to direct water flow is it should be fairly consistent without birdbaths or humps. When you are manually making the floor, it's best to aim for the 1/4" per foot. On a manufacturered pan, since its slope is tightly controlled during the manufacturering process, you can get by with less since it is very consistent. WHen using Kerdi, you have the choice of using their preformed pan, which may not meet your exact size considerations, or building a traditional preslope in any shape you want with any slope to fit your exact needs. This is less expensive, since the shipping of a large piece gets costly, and deck mud is so cheap. But, if you are looking for speed, and a reliable surface to tile for a DIY'er, their pans have some advantages. You can set it, cover with the membrane and be tiling all the same day.

    One thing to consider on any shower floor is how slippery the tile is when wet. There can be significant differences between tile. Also, the grout lines tend to offer additional grip, regardless of the tile (unless you happen to choose epoxy grout, at least some of them). So, while you can use larger tile for a linear drain type of install, you may want to temper that with the specific tile and their size.
    Last edited: Dec 1, 2011
  11. ANGELofDEBT

    ANGELofDEBT New Member

    Messages:
    2
    Location:
    NB Canada
    Screenshot2011-07-27at55935AM.jpg John,

    Not being a person in the business or done a linear drain before, can you point out what is the problem with the shower?
    Last edited: Dec 1, 2011
  12. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    22,153
    Location:
    New England
    You want the water to drain into the drain! It appears that water would tend to pool between the wall and the drain, assuming the slope is from the main area into the drain. It could get there by splashes or directly from the showerhead. You'd either need to reverse the slope on the wall side to the drain, or move the drain next to the wall. Then, it's best if the drain is the full width, as you might get the same pooling at either end.
  13. johnfrwhipple

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

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    Post(s) deleted by John Whipple
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  14. dlarrivee

    dlarrivee New Member

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    Nice to see the 2lb. spray foam in a few of your pictures John.

    Does evaporation ever become a concern with this coin trick?
  15. johnfrwhipple

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

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    Post(s) deleted by John Whipple
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  16. johnfrwhipple

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

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    Post(s) deleted by John Whipple
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  17. Freddie

    Freddie New Member

    Messages:
    54
    Location:
    Ottawa
    John, Another gorgeous shower. We are looking into the very same setup for our ensuite reno. Corner glass walled curbless shower and freestanding tub exactly as you show it. Am struggling as to how to make this possible. I've attached a picture of the half torn out bathroom. Ensuite Bathroom Reno 009.jpg

    Can this be done without a curb and without cutting the joists? I'm in Ontario if that helps.

    thanks,
  18. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,153
    Location:
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    Unless you can raise the entire floor, to construct the shower pan, it MUST slope from the entrance to the drain, and since that needs some thickness, it has to come from somewhere.
  19. Freddie

    Freddie New Member

    Messages:
    54
    Location:
    Ottawa
    Assuming that I dropped the floor down the thickness of the floor which is 5/8" OSB and then added the drain and 3/8" for slope change ( 3' x 3' shower, drain in center). So say top of lowered floor to top of drain would be 1.25". Then add 3/8" for slope and you are at 1 5/8" from lowered floor or 1" above the floor of the remainder of the bathroom. This would be for no curbs at all.

    Alternatively, I guess I could put a full 3' linear drain at the front of the shower at the door at the level of the finished bathroom flooring and slope the shower up 3/4" (3' x 1/4") to the back of the shower and add a curb to the left side of the shower. Would then have a curbless "entry" at least.

    Do you think these 2 approaches would work and do my numbers seem correct?
    Just looking at what each option would require in terms of changes to current bathroom and comprises. Current bathroom tile has all been taken up so that's not a deciding factor. Current bathroom had 1/4" plwood
  20. Freddie

    Freddie New Member

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    Location:
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    Deleted Post
    Last edited: Dec 13, 2012
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