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Old 06-20-2008, 07:21 PM   #16
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Tile on concrete floor....with 1/8th inch cracks..


Angus. I am not a tile expert by any means, but why Ditra over the regular membrane with primer kits that Home Depot sell. My Home Depot does not carry Ditra and many markets may not. It is a special order product, as are most Schluter products.

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Old 06-20-2008, 07:23 PM   #17
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Tile on concrete floor....with 1/8th inch cracks..


What "regular membranes" are you talking about? Can you give me a manufacturers name?

By the way, if you plan ahead, you can order Ditra via the internet for even lower prices.
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Old 06-20-2008, 07:31 PM   #18
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Tile on concrete floor....with 1/8th inch cracks..


Home Depot in their quest to get things cheaper, keep changing names. I will have to visit the flooring dept and get back to you. I know custom building products used to supply it.

It used to be in a red cardboard box, which contained membrane and primer. Then thay came out with the rolled up sheets in plastic bags, presumably to cut costs. The come in different widths too.

Great response time by the way.
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Old 06-20-2008, 07:39 PM   #19
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Tile on concrete floor....with 1/8th inch cracks..


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Originally Posted by HomeDepot23 View Post
Great response time by the way.
It's all in the timing

I'm not familiar with this product. If it's a crack isolation membrane, it may work. If it's just a waterproofing membrane, then no.

FYI, they are other membranes out there. Noble makes another....

I just figure it's easiest to suggest Ditra on a DIY site because there is A LOT of information out here about it and it is usually available at Home Depot.
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Old 06-20-2008, 07:42 PM   #20
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Tile on concrete floor....with 1/8th inch cracks..


It is definitely crack isolation. The HD installers use it. (I know that's not saying much)

If I remember my course on Ditra. I think they actually recommend the Customblend, the cheapest thinset, only for their product.
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Old 06-20-2008, 07:47 PM   #21
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Tile on concrete floor....with 1/8th inch cracks..


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If I remember my course on Ditra. I think they actually recommend the Customblend, the cheapest thinset, only for their product.
Are you talking about using cheap thinset for Ditra? There are specific instructions on using thinset under Ditra depending on what your substrate is. Since we're talking about a basement floor in this case, you need a non-modified thinset. For that application, I'd use Kerabond. It's not cheap. Retails around my parts for about $15/50 lbs.

With the use of any thinset, I never recommend the cheap stuff.
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Old 06-20-2008, 07:52 PM   #22
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Tile on concrete floor....with 1/8th inch cracks..


You are right. I stand corrected. My 45 yr old memory hit a bumb again. They did say non modified and the joke was that the only non modified thinset in Home Depot was the customblend, which should only be used by contractors whose job it is to rip off their customers. Ergo, to sell ditra and thinset to a customer meant breaking our cardinal rule of never recommending custombond.

I think I have a link for the crack suppression kit. It is shown in rolls of 4" or 18" wide.

http://www.custombuildingproducts.co...er=arc&lang=en
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Old 06-20-2008, 09:27 PM   #23
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Tile on concrete floor....with 1/8th inch cracks..


That would work too! I have never really used Custom products. On a rare occasion when a home depot is my only resource, I have grabbed a bag of versabond.
I don't like to use my customers for guinea pigs so I would be reluctant to try (or recommend) a product I'm not familiar with. Like I said, information about Ditra is every where and it is used by many professionals. I trust it.
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Old 06-21-2008, 10:01 PM   #24
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Tile on concrete floor....with 1/8th inch cracks..


Angus. I visited the flooring dept today and was told I need to visit more often.

I left flooring a year ago to become an expeditor, which means I try stop install issues before they happen and minimize them before they reach a manager. (my job, as you can imagine is non-stop). In that time they do now carry Ditra in stock. They love it, but find that customers say it is too expensive. They have sold a roll and that was returned.

The crack buster I showed you, is not a membrane, but a 1/4" foam with primer.

The membrane is no more.

As the Ditra and the crackbuster are so thick, it would seem that one would have to cover the entire floor to solve a 1/8" crack.

Therefore I think I would do the unthinkable and paint on Redguard the waterproofing and crack suppressant product. I know, I know, painting something on the floor to stop a crack from affecting your tile doesn't seem like a good idea. But it has to be better than spending all that time and money for a crack.

I look forward to your opinion.

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