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Unread 10-12-2021, 11:04 AM   #1
davidcaswelltile
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Pulling Teeth

if you pulling a tile that covers ditra you have to replace the ditra as well--nearly in every case.

I do find ditra (really) annoying when I have to make adjustment to the tile substrate when the thinset it still wet and I pull the tile up to add more or remove some thinset in a certain spot and the ditra comes up also with the tile....I know that is a wet ditra/wet tile installation. But sometimes I do that especially when conditions push the installation in that direction.

(only suitable for small spaces tho...like a 25ft bathroom floor (you just have to mind the thinset under the ditra as much as the thinset under the tile.))
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Unread 10-12-2021, 12:55 PM   #2
John Bridge
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I think if you get the Ditra mushed into the thinset holding it down you'll eliminate the problem. I've never had the problem. Of course, I've never made a mistake.
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Unread 10-12-2021, 01:06 PM   #3
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Quote:
Originally Posted by David
(only suitable for small spaces tho...like a 25ft bathroom floor (you just have to mind the thinset under the ditra as much as the thinset under the tile.))
not sure if the orange people would be okay with this but have you ever considered using a rapid set underneath your ditra in said situations
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Unread 10-12-2021, 10:57 PM   #4
Tool Guy - Kg
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When the mortar is still wet with Ditra and I need to pull a tile, I won’t just pry it up with a margin trowel. I’ll slide the tile laterally and lift gently to keep from disturbing the Ditra.
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Unread 10-13-2021, 08:33 AM   #5
davidcaswelltile
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k both of those pointers together make sense. i think that being sure that the thinset under the ditra is smooshed well, to the point of having a suction effect, and breaking the suction of the tile on top the ditra by sliding makes sense. when I think about it I think the slide and pry approach is solid having done it myself....out of necessity. nice to make a rule of it tho...that way to side-step some frustration and avoid unhelpful knee-jerk reactions.
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Unread 10-13-2021, 10:12 AM   #6
John Bridge
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While I do agree it's easier to pull a tile up from a concrete slab, for example, the advantage of using Ditra can't be outweighed.
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Unread 10-13-2021, 10:54 AM   #7
davidcaswelltile
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not to be overly pugnacious

One concern I have with Ditra is the idea that it is a solve-all or a miracle product.

(tho I do enjoy the simplicity of it's process...especially in regards to products like ditra heat which simplify in floor heating installations quite a bit)

I was in Minot North Dakota last month and there was a serious tile failure there on a marble patio that was a public work. I looked close at it...the installer(s) used ditra, but may not have accounted or noticed other potential hazards such as a fractured concrete pad and (most likely) the effects of heat and moisture and frost on the thinset (either after or during installation).

Hopefully no-one has killed themself because of it.

They also used a light tan coloured thinset that I think may have been Uzin--a newer product to me...I've used it also...not sure if that was the problem.

I did a couple thousand feet of outdoor granite a few years ago....and as far as I know it held together....but seeing the Minot catastrophe did make me a little worried.

In my case we were using thicker (1.25") granite and wet carpets were used to cover the tiles and slow down the effects of the hot sun during the installation.

Knock on granite everything is holding up fine.
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Last edited by davidcaswelltile; 10-13-2021 at 11:02 AM. Reason: typo
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Unread 10-15-2021, 09:10 AM   #8
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Yeah, in that country there could have been vertical cracking, and it's not uncommon to have too few expansion joints . . . or expansion joints could have been covered up. Who knows?

I was originally Schluterized in 2002 and and became a Schluter products user from then on. I never had a problem that I didn't create myself.
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Unread 10-16-2021, 03:19 PM   #9
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I've tried rapid set under Ditra and it didn't go well. The problem is that the bond wasn't good enough to hold but it had already dried so it wouldn't rebond.

You're better off using normal thinset, in my opinion. But really, just wait until the next day is best.
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