Ceramic Tile Advice Forums - John Bridge Ceramic Tile

Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet

Advertiser Directory
JohnBridge.com Home
Buy John Bridge's Books

Go Back   Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > Tile Forum/Advice Board


Thread Tools Search this Thread
Unread 06-30-2021, 06:35 AM   #1
Registered User
Join Date: May 2021
Posts: 5
How to fix small rips in Kerdi membrane

I just finished all but the first row of a tiling job using Kerdi membrane underneath. I had used 2x4s screwed in at the bottom as a leveler, leaving enough room so that I could Kerdi-band over the holes at the end with 2" overlap in all directions. However, when I pulled the 2x4 off one wall, thinset had adhered the board to the Kerdi and caused small rips in the membrane immediately below the bottom edge of the tile. Since they are so close to the bottom of the tile, I won't be able to get a 2" overlap without pulling off the first row of tile.

Is pulling off the tile my only chance of salvaging this? I'm worried about causing more damage to the Kerdi. I bought Kerdi-fix, but the more I read about it, the more I've come to think that this would not be a proper use for it and wouldn't be waterproof. What are my options here?

Attached Images
robbybobby123 is offline   Reply With Quote
Sponsored Links
Unread 06-30-2021, 11:37 AM   #2
ss3964spd's Avatar
Join Date: Jul 2005
Location: Fairfax, Va
Posts: 4,378
Send a message via Yahoo to ss3964spd
Welcome, TR,

Can't quite see from the photos, did the Kerdi actually rip it is it just the fleece that came off?
If I recall correctly my memory is excellent, but my ability to access it is intermittent.
ss3964spd is online now   Reply With Quote
Unread 06-30-2021, 11:59 AM   #3
Registered User
Join Date: May 2021
Posts: 5
I'll try to get better photos of it tonight, but there are some rips in the membrane, more than just the top fleece. I was hoping to kind of patch it up with a layer of Kerdi-fix, but I'm not confident it'll be waterproof. I've never used Kerdi-fix before.
robbybobby123 is offline   Reply With Quote
Unread 06-30-2021, 03:20 PM   #4
Texas Tile Contractor
Lazarus's Avatar
Join Date: Oct 2006
Location: Beaumont, Texas
Posts: 8,441
Kerdi Fix is some awesome stuff. I would not hesitate to smear a good coating on the areas and call it "good to go."
Lazarus is offline   Reply With Quote
Unread 07-01-2021, 08:13 AM   #5
Registered User
Join Date: May 2021
Posts: 5
Thanks for the response, makes me feel a little more comfortable. I'm going to proceed with the Kerdi-Fix.

In case any one else ever has this issue, I also copy-pasted my question to Schluter directly and received the following from their Contact Support Team.

"In this situation I would advise you patch the rip the best you can with Kerdi or Kerdi-tape and touch up where you can't patch with the Kerdi-Fix. Although not the most ideal scenario it is acceptable to use the Kerdi-Fix for this purpose. Please feel free to contact me with any additional questions."
robbybobby123 is offline   Reply With Quote
Unread 07-01-2021, 01:25 PM   #6
John Bridge
Join Date: Mar 2001
Location: Rosanky, Texas
Posts: 68,417
Send a message via AIM to John Bridge
Hi TR,

The Schluter approved way would be to patch it with another layer of Kerdi or Kerdi Band. 2 in. overlap all the way around.
John Bridge is offline   Reply With Quote

Stonetooling.com   Tile-Assn.com   National Gypsum Permabase

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Shower Dam/curb. Kerdi board or kerdi membrane over sheet rock? Shady at Best Tile Forum/Advice Board 11 01-20-2016 09:44 AM
Uncoupling membrane for small mosaic tile jshatoc Tile Forum/Advice Board 3 03-01-2014 06:29 PM
Small quantity of waterproof membrane available? cable_w Tile Forum/Advice Board 2 08-20-2008 08:50 PM
Small rips in Kerdi membrane jmbeam Tile Forum/Advice Board 13 01-13-2008 09:17 PM
Small piece of Anti Fracture Membrane? eadmar Tile Forum/Advice Board 11 08-06-2006 09:11 PM

All times are GMT -6. The time now is 07:29 AM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright 2018 John Bridge & Associates, LLC