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 12-17-2011, 01:54 PM   #1
Registered User
Join Date: Dec 2011
Posts: 1
Ditra XL, 24x24 Marble = Settling/Lippage Issues - Any ideas?

Good afternoon,

I am doing a Ditra XL install (about 1,400 square feet) of an entire first floor to a house. The flooring material is 24" x 24" cappuccino marble. Based on a recommendation from my Schluter rep (due to some moisture/vapor issues in the slab), I am using Ditra-set to adhere the Ditra XL to the slab, and am also using Ditra-set to affix the marble to the Ditra XL. I am using the Tuscan leveling system as well.

After completing the Ditra XL install, yesterday I started installing tile, and did a 5' by 10' area by the front door. I came back to the house today and I noticed some severe lippage issues (1/8" in some spots) that must have occurred from settling from the (heavy) weight of the tile, despite using the Tuscan leveling system.

We don't have vertical room to use mud (or mud with Ditra-set) on top of the Ditra XL, and Schluter does not want me to use any mud, slc or leveling compound under the Ditra XL because of the moisture issues.

Any ideas on how to deal with this?

Last edited by GarretHouston; 12-17-2011 at 02:18 PM.
GarretHouston is offline   Reply With Quote
Sponsored Links
Unread 12-17-2011, 02:26 PM   #2
Moderator emeritus
cx's Avatar
Join Date: Jul 2001
Location: Boerne, Texas
Posts: 96,477
Welcome, Garret.

I just can't imagine how your tiles could individually sink while the TLS was in place.

If that's actually the case, I think you need to talk with our friend Mick who created that system. I'll see if I can get him to take a look at this, but he can also be contacted through the link to the right side of the page.

You got some photos of this floor with the problem in place?

cx is offline   Reply With Quote
Unread 12-17-2011, 02:55 PM   #3
Join Date: Dec 2010
Location: four seasons area
Posts: 2,457

Is the marble moisture sensitive ? That's the only way to have lippage with the TLS. The corners will curve no matter what.

Talk to the supplier for the marble . If the marble is not moisture sensitive , then it is due to improper setting of the TLS. But this can be seen at the same moment as the installation .

There was something here but is no longer available
eurob is offline   Reply With Quote
Unread 12-17-2011, 03:08 PM   #4
Tampa Florida Tile Contractor
ceramictec's Avatar
Join Date: Oct 2007
Location: Tampa, Florida
Posts: 26,511
if you have slow rolls in the slab or even worse nice divot, even using the TLS wont help you get the tile flat. you will need to prep your floor first and then use the Ditra and the TLS.

it would be useless to screed/float in the low spots with the Ditra already installed.

I would have used a few thin layers (allow each layer to dry) of Ditraset to fill in the divots first before installing the Ditra.

Tampa Florida Tile Installation
^^Check out our Blog^^
ceramictec is offline   Reply With Quote
Unread 12-17-2011, 03:45 PM   #5
Independent Tile Contractor
Toddman's Avatar
Join Date: Mar 2010
Location: Rogers, MN
Posts: 830
Just curious as to why your using the Ditra XL instead of regular Ditra?

Good work is not cheap, and cheap work is not good.

Toddman is offline   Reply With Quote
Unread 12-17-2011, 04:39 PM   #6
Registered User
Join Date: Feb 2007
Location: somewhere over the rainbow
Posts: 1,581
Hi Garrett,

Is your marble gaged, and if not, are you using the straps for ungaged?
Could you, please post some pics with the TLS on top of the floor, after has been set?
Roberto, you are correct.

Thank You.


Last edited by MICK1; 12-17-2011 at 05:07 PM.
MICK1 is offline   Reply With Quote
Unread 12-17-2011, 05:53 PM   #7
Houston Remodeler
Pondering retirement daily

STAR Senior Contributor

Houston Remodeler's Avatar
Join Date: Oct 2009
Location: Houston Texas
Posts: 28,236
Sounds like the thinset may have been mixed too thin, which can easily be the cause of sinking tiles.

How flat was the substrate before the ditra went in?

For when DIY isn't such a good idea...
Houston TX area Kitchen & Bath Remodeling

Houston Remodeler 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
Lippage issues turbomangt Tile Forum/Advice Board 9 06-03-2011 01:34 PM
DITRA + unmodified + 24X24 X 3/4 stone JinMTVT Tile Forum/Advice Board 32 01-04-2011 10:43 AM
24x24 Tile in the Kitchen Cement vs Ditra blowsjim Tile Forum/Advice Board 3 11-23-2010 09:38 AM
1/4 x 1/4 marble mosaic tile lippage/butt seam issues Jeraza Tile Forum/Advice Board 0 07-01-2009 11:26 PM
Marble Lippage Standards Jamie Johnson Professionals' Hangout 32 08-02-2005 07:56 PM

All times are GMT -6. The time now is 12:51 AM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.
Copyright 2018 John Bridge & Associates, LLC