Kerdi shower

Discussion in 'Shower & Bathtub Forum & Blog' started by Crowejordan, Nov 3, 2018.

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What should I do about the corners and seal

Poll closed Nov 4, 2018.
  1. Leave them they are both okay

    0 vote(s)
    0.0%
  2. Reinstall them both

    0 vote(s)
    0.0%
  3. Seal is okay corners need to be fixed

    0 vote(s)
    0.0%
  4. Seal needs to be fixed corners are okay

    0 vote(s)
    0.0%
  1. Crowejordan

    Crowejordan New Member

    Joined:
    Nov 2, 2018
    Location:
    North Carolina
    I am having a Kerdi shower installed and think the mix valve seal was installed backwards and that the corners aren’t that great. Any thoughts? Am I over reacting?

    Thanks
     

    Attached Files:

  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    First off, what thinset did you use? IT looks REALLY grainy. Schluter calls for the use of a premium unmodified. One of the differences between the price leader, cheap stuff and premium is how fine the sand is, and the amount of actual cement in the mix. A premium one will be much finer texture. A cheap one is MUCH harder to get to work as it's got bigger grains of sand and nowhere near as much cement in it.

    Second, yes, your corners may be an issue. The seams will work if the two layers are intimately attached with the required overlap (nominal 2"). You have a couple of options.
    1. Carefully cut the bubble out, then add another layer of KerdiBand to cover it with at least a 2" span each side of the hole you created.
    2. Carefully cut that bubble, and use some KerdiFix sealant underneath and around the top to create a good seal.

    The valve seal should be okay. What you may have an issue with is the depth of how the valve is mounted. It must be between the min/max allowed once the finished wall is up for the trim to fit.

    I'd check over at www.johnbridge.com where there's lots of tiling pros and many of them use Kerdi...lots of years of experience.
     
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  4. Crowejordan

    Crowejordan New Member

    Joined:
    Nov 2, 2018
    Location:
    North Carolina

    We used Kerabond thinset. The seal might need to be carefully cut out and a new one installed correctly. You are correct, there isnt going to be room for the trim piece.

    The floor pan is also an issue. You can see the trowel marks under the membrane and feel them and air pockets where the tile did not adhere. I would say that the membrane didn't get pressed hard enough when pushing excess thinset out.

    Thanks for the suggestions!

    I have tried to register on Johnbridge.com... It is a great forum with a lot of good information. However, it isn't letting me register. I have emailed them to see what the issue is.
     
  5. Crowejordan

    Crowejordan New Member

    Joined:
    Nov 2, 2018
    Location:
    North Carolina
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    It looks like the thinset may have been a bit too stiff or, you didn't get it covered before it started to setup.

    There was a note on their site today that said they had a glitch...it might be okay by now. Doesn't happen often.
     
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