(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 5 of 5

Thread: Kerdi Membrane VS Mapei Aqua Defense

  1. #1
    Renovating Footman_75's Avatar
    Join Date
    Jul 2012
    Location
    Ontario, Canada
    Posts
    34

    Default Kerdi Membrane VS Mapei Aqua Defense

    Hi all,

    I am in the process of installing waterproofing system for a shower wall.

    I know this is a plumbing forum, and my question is more for tiling professionals, but I appreciate the level of expertise here, and hope there are a few people out there with some experience on the following products:

    1) Kerdi Membrane
    2) Mapei Aqua Defense

    Item 1) makes sense to me, but I'm told it requires unmodified mortar, which doesn't make much sense. Using a mortar which offers no plasticity seems like a great way to have your shower membrane sheer off from your backerboard.
    Item 2) offers serious plasticity, and my tile suppliers use it on their jobs and recommended that I use it. I'm leaning in this direction, but the idea of just painting on a waterproofing system, well, I'd like to hear from more people who have used the product, for better or for worse.

    Thanks in advance,
    Foot

  2. #2
    DIY Member BillTheEngineer's Avatar
    Join Date
    Jan 2011
    Location
    Smithtown, NY
    Posts
    33

    Default

    You would be better asking that question here: http://www.johnbridge.com/vbulletin/

  3. #3
    Renovating Footman_75's Avatar
    Join Date
    Jul 2012
    Location
    Ontario, Canada
    Posts
    34

    Default

    Thank you!

  4. #4
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,395

    Default

    The fleece on the Kerdi membrane gives it a microscopic amount of flexibility in shear. Under any normal circumstances, you'd likely crack the tile or wall before you sheared off the membrane when properly installed.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  5. #5
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,968
    Blog Entries
    5

    Default

    Post(s) deleted by John Whipple
    Last edited by johnfrwhipple; 03-15-2014 at 03:14 PM.


    jfrwhipple@gmail.com - www-no-curb.com - 604 506 6792

    Always get construction advice double checked by your local city hall. Flood Test Every Shower - Every Time.

Similar Threads

  1. Kerdi Membrane
    By DanMcD in forum Shower & bathtub Forum & Blog
    Replies: 8
    Last Post: 02-09-2014, 11:34 AM
  2. Schluter Kerdi Membrane Source?
    By inertiacoupling in forum Shower & bathtub Forum & Blog
    Replies: 8
    Last Post: 03-30-2012, 06:07 AM
  3. Can I Use Any Thin Set With Kerdi? The ICC-ES Evaluation Report On Kerdi Says You Can
    By johnfrwhipple in forum Shower & bathtub Forum & Blog
    Replies: 45
    Last Post: 01-08-2012, 10:19 AM
  4. Kerdi membrane question
    By khayes in forum Shower & bathtub Forum & Blog
    Replies: 6
    Last Post: 03-28-2007, 01:30 PM
  5. What MAPEI mortar for thinset?
    By SeattleTim in forum Shower & bathtub Forum & Blog
    Replies: 3
    Last Post: 01-03-2006, 06:03 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •