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Unread 10-07-2009, 01:00 PM   #1
qzrrbz
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Ditra and 2" hex carrera marble?

Doing a bathroom remodel on a 1900's house. Nothing square, hills, valleys, sigh...

Looking at the Ditra product to go under wife's chosen 2" across hexagonal ~ 3/8"+ thick carrera marble mesh sheeted tiles. It seems that that product would be much happier used with big 12" square tiles. is that an accurate assessment. I have bought 1/2" hardibacker to try to flatten out my world a little. Is this a more recommended idea?

Any other better ideas out there?
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Unread 10-07-2009, 01:07 PM   #2
Jason_Butler
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Use the Ditra - just install the Ditra and fill all the waffles on Day 1. You can tile on Day 2.

This method will ensure the small tiles don't fall into the waffles

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Unread 10-07-2009, 01:11 PM   #3
Pete1972
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D'oh! Just logged in to write what Jason wrote. I used Ditra under a mosaic carrara marble basketweave and contacted Schluter directly and they said the same - lay Ditra, skimcoat top of Ditra with thinset and let dry for 24 hours, then tile. Mine has worked out well so far.
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Unread 10-07-2009, 01:11 PM   #4
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Take a look at the Ditra installation handbook, page 8. They have specific notes for natural stone. http://www.schluter.com/media/brochu...raHandbook.pdf
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Unread 10-07-2009, 02:16 PM   #5
qzrrbz
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Thanks for the replies!

I've gone off and read the Ditra handbook install notes on the Schluter site. It would seem that the thinset that I already have is not recommended?

I have what I trust to be "modified" thinset: Superior's Pro Flex Platinum "Latex Fortified Thinset Mortar", least that's what I can read off the bag. (sold by the Tile Shop)

Is this useful here? Which layer? Floor - Ditra or Ditra - Marble? Any advice?
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Unread 10-07-2009, 03:49 PM   #6
qzrrbz
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When in doubt, call the manufacturer and ask!

Got off the phone with Schluter. Their recommendation was ...

1) OK to use *modified* thinset between subfloor and DITRA.
2) NOT OK to use *modified* thinset between DITRA and tile.

So, off to the store I go for a different bag of stuff!

As far as hex tiles, 2" is as small as they would suggest going, and then "fill in the (waffle) blanks first", as had been suggested a couple times by guys who know what they're doing above!
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Unread 10-07-2009, 03:53 PM   #7
Rd Tile
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Can't see why you can't pre-fill with modified, no tile going over it, should cure fine.

But what do I know, been using Versabond under and over for years now, no issues, carry on.
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Unread 10-16-2009, 05:31 PM   #8
qzrrbz
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Weekend warrior back at it again. Gotta keep the day job... :-)

This DITRA stuff is seriously great to work with. Although it is a serious ring-tailed b*tch to move once set down. The idea of sliding a piece under cutout jambs and whatnot isn't a real good one, especially if it's a *big* piece!

Other than that, so far so good!
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