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Unread 07-20-2020, 11:27 AM   #1
MIKESCOTTMTL
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Moisture Sensitive, Engineered Terrazzo Tile with Ditra heat - Can this combo work?

Does anyone have any experience installing impervious, engineered tile over ditra heat? I have been told these engineered tiles are moisture sensitive so I am unsure which mortar to use or if there is any way to install them over ditra heat.
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Unread 07-20-2020, 05:55 PM   #2
Tool Guy - Kg
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How did it go with obtaining info from the manufacturer? Still no joy?

It’s not that we aren’t experienced or that we are answering generically. It’s that we understand that the finest source of info for these apparently special tiles is the manufacturer who is likely the only one on earth that has tested the tiles in any way.

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Unread 07-22-2020, 06:39 AM   #3
MIKESCOTTMTL
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Absolutely no luck! Spoke to everyone at Ciot and they will not give me any info. Neither pro counter nor sales reps. So frustrating. Can’t even tell me the manufacturer! It’s like it’s some big secret! Maybe it’s because they are part of their new signature collection?

I thought I was getting somewhere with the third sales rep but then he emailed me a link to their own Ciot webpage. Again, it had no data whatsoever.

The tile is completely impervious. I tested it out with a few droplets of water that haven’t been absorbed for days. The tiles are like slabs of quartz. I just can’t see how thinset would cure under them.
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Unread 07-22-2020, 06:59 AM   #4
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Here are some photos
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Unread 07-22-2020, 07:26 AM   #5
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call one of the setting material Company's .Laticrete,Mapei,Custom,Tec,Bostic,Bonsal,Ardex,Schluter,ETC and ask them about the bond. They may suggest a Rapid Setting Thin Set Mortar ,but ask them its their bonding agent.
I would call Schluter since its also their membrane!
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Unread 07-22-2020, 10:00 AM   #6
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The recommendation for bonding material varies from manufacturer-to-manufacturer with these engineered tiles. Some of them suggest rapid-setting cement, some are epoxy only. It’s a shame the distributor can’t get you pointed towards the info you need, because you do in fact need it to select the proper materials.

I’m not sure if you have purchased the material or not yet, but I would consider moving towards a different product if you can’t get in touch with the actual tile manufacturer.
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Unread 07-22-2020, 11:58 AM   #7
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I second Holden's recommendation and have an extensive claims history on "engineered" tile.
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Unread 07-22-2020, 03:35 PM   #8
jadnashua
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For cement to cure, it does not need to dry...curing is a chemical reaction, not a drying process. But, there are some modifiers that will not attain their stability if they do not dry. A rapid setting mortar, if it bonds, does not need to dry, and there are others that can do that as well. But, without information on the manufacturer's recommended adhesive, (i.e., not knowing if there are any sealers, coatings, etc. on the tile), ensuring a long-term bond is unknown.
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Unread 07-23-2020, 07:08 PM   #9
MIKESCOTTMTL
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Thanks for all the input. It’s unfortunate but I think I’m ready to walk away from the tile now.

I appreciate all your responses.
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Unread 07-23-2020, 10:20 PM   #10
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