(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 8 of 8

Thread: Waterproofing a shower

  1. #1
    DIY Junior Member NYC-DIY's Avatar
    Join Date
    May 2011
    Location
    NYC
    Posts
    6

    Default Waterproofing a shower

    Would like to get a few opinions. My contractor is building the shower with the following layers..

    Floor:

    - plywood
    - no pre-slope
    - 40 mil PVC liner
    - traditional drain
    - sloped mud bed
    - laticrete
    - thinset & tile

    Curb:

    - wood
    - same 40mil PVC from floor
    - concrete board
    - laticrete
    - thinset & tile

    Walls:

    - studs
    - concrete board
    - laticrete (I insisted in this. He claims it is not needed on shower walls and he's never had a shower fail)
    - thinset & tile

    Would like several opinions on what is good and bad with the above since it is weird mix of traditional and topical waterproofing. Specifically:

    1. How bad to have no pre-slope considering pan with laticrete also?
    2. Is is ok to have both PVC liner and laticrete?
    3. Ok to build curb with laticrete over concrete board?
    4. What are concrete board seams (curb and wall) sealed with as I may have to tell them?
    5. Is the laticrete necessary on walls like I insisted or would a wall with only concrete board and thinset&tile been ok like my contractor said?

    Thanks!
    Last edited by NYC-DIY; 10-18-2012 at 05:15 PM.

  2. #2
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,972
    Blog Entries
    5

    Default

    post(s) deleted by John Whipple
    Last edited by johnfrwhipple; 03-17-2014 at 06:03 AM.


    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.

  3. #3
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,405

    Default

    The liner flat on the floor should be a major red flag...plumbing code requires the waterproof layer to be sloped to the drain. WHEN, not if, moisture makes it beneath the setting bed, it must have a path to the drain, and if it is flat, it will NOT flow to the drain and will slightly accumulate. The chemistry of mortar is that after a couple of years, the pH changes and it then starts to smell like a swamp if it is used a lot and not given a chance to thoroughly dry out.

    Insist it is built per one of the approved methods which ALL require the liner to be on a sloped bed.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  4. #4
    DIY Junior Member Manny1981's Avatar
    Join Date
    May 2013
    Location
    Brooklyn, NY
    Posts
    3

    Default New waterproofing membrane coming soon

    New waterproofing membrane information will be posted once final certification is completed. Will keep you updated.
    Last edited by Manny1981; 06-03-2013 at 06:37 AM.

  5. #5
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,972
    Blog Entries
    5

    Default BondTAC has no IAPMO Certification - No ANSI 118.10 rating WHOOPS try again

    post(s) deleted by John Whipple
    Last edited by johnfrwhipple; 03-17-2014 at 06:03 AM.


    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.

  6. #6
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,972
    Blog Entries
    5

    Default BondTac Promotion by Glue Tek - Owner and founder of GlueTek is Manny Halpern

    post(s) deleted by John Whipple
    Last edited by johnfrwhipple; 03-17-2014 at 06:04 AM.


    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.

  7. #7
    DIY Junior Member Manny1981's Avatar
    Join Date
    May 2013
    Location
    Brooklyn, NY
    Posts
    3

    Default

    Hey there John,

    I understand your skepticism. Bit harsh, but understandable. My own company is Lenfex Kitchen & Bath (www.lenfex.com), but I'm not posting here about that obviously. And you are correct, I do sell the BondTAC products, of course. I am involved, partly, with BondTAC - you see, it's a family owned company. I've helped a bunch of friends with their shower projects, and I've used it in my own shower. I also had my contractor use it to bond "peel & stick" tile to my kitchen floor, and to waterproof and bond Owens Corning XPS insulation to my basement walls. It really IS "that good". As I said, take a look at the YouTube videos. You mentioned the flood test - aside from the showers, which were of course tested, take a look at the aquarium video. I think that's a rather extensive test of BondTAC's waterproofing capabilities. And if you don't believe the coverage area, get a quart - honestly - and test it out yourself. Try it on sheetrock and on cement board. One coat on the first, two on the second. I would really like your first hand opinion of the products. I know it's miles above the other waterproofing membranes - and that sounds impossible, but try it. Take a cardboard box, coat the inside, fill it up and let it sit for as long as you like. BondTAC isn't a major corporation (yet), but it's getting there. As for tests and certifications, see below.

    The BondTAC products meet the following Canadian testing and certifications currently, and will have the ANSI 118.10 and 118.12 certifications shortly:

    ASTM E 96-05 - Standard Test Methods For Water Vapour Transmission Of Materials
    ASTM C 1306-08 - Standard Test Method For Hydrostatic Pressure Resistance Of A Liquid-Applied Waterproofing Membrane
    CAN/ULC-S102 - Standard Method Of Test For Surface Burning Characteristics Of Building Materials And Assemblies (Yes, BondTAC is also HIGHLY fire resistant when cured)
    40 CFR 51.100 - U.S. Environmental Protection Agency Definition Of VOC Exemption
    SOR-2009/264 - VOC Concentration Limits For Architectural Coatings

  8. #8
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,972
    Blog Entries
    5

    Default ANSI 118.10 certification for showers - Waterproofing Systems require this

    post(s) deleted by John Whipple
    Last edited by johnfrwhipple; 03-17-2014 at 06:04 AM.


    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. which waterproofing system for new shower?
    By ratherbefishing in forum Shower & bathtub Forum & Blog
    Replies: 75
    Last Post: 05-30-2013, 08:57 AM
  2. Waterproofing a free standing tub surround. A look at various waterproofing options.
    By johnfrwhipple in forum Shower & bathtub Forum & Blog
    Replies: 0
    Last Post: 08-01-2011, 08:23 PM
  3. window in shower waterproofing
    By daddio in forum Remodel Forum & Blog
    Replies: 1
    Last Post: 09-08-2009, 08:16 PM
  4. Tile Shower Waterproofing
    By killavolt in forum Shower & bathtub Forum & Blog
    Replies: 4
    Last Post: 04-13-2009, 08:33 PM
  5. Waterproofing shower stall
    By tessa in forum Shower & bathtub Forum & Blog
    Replies: 2
    Last Post: 06-24-2005, 08:21 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
  •