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Unread 01-04-2012, 04:29 PM   #1
koihito
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Opinions on Travertine Underlayment

Assuming deflection is up to snuff, any thoughts on why a Liquid Membrane over a proper two layer subfloor (in leu of Ditra/CBU/etc.) would be "wrong"?

Trying to shave even a little height without skipping the second layer of ply and not lose a job that I really can't afford to lose
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Unread 01-04-2012, 04:32 PM   #2
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Don't see a problem. The double plywood is the requirement - not any type of water proofing right? The liquid is for your peace of mind.
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Unread 01-04-2012, 04:53 PM   #3
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Yep, just because I have a mental hang up with putting it on plywood
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Unread 01-04-2012, 04:59 PM   #4
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Have done it many times. Very important to take the time to back-butter every piece.The back of travertine looks like a sponge sometimes.
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Unread 01-04-2012, 05:15 PM   #5
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I have used fractureguard 5000 by merkrete to do this. Fracture guard isn't sold as a waterproofer and was less expensive than comparable waterproofers. Worked good for me and was priced good. Haven't used any in a long time.
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Unread 01-04-2012, 09:08 PM   #6
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Done it. It's a nice thing.

Think about the greenskin, faster than 2 coats of liquid, no dry time.

How many feet?

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Unread 01-04-2012, 10:31 PM   #7
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I've thought about greenskin, but never heard back about pricing. In fairness the holiday season may have had something to do with that, I should follow up again. This particular job is only about 80 sq.ft. (well, that and also a shower)

Of course, height is always an ongoing battle, since I do a lot of stone and always do a second layer of ply this could become a new thing for me
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Unread 01-04-2012, 11:48 PM   #8
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Nate, I've been wondering the exact same thing for some time now...glad you posted it. In consulting with his Gueuezeness, I got the same advice to try greenskin. I'm going to order a roll soon.
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Unread 01-05-2012, 06:23 AM   #9
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$1.22 a foot including tax and shipping from Colorado.

Remember, no thinset, primer, or fasteners to buy. No dust.

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Unread 01-05-2012, 03:57 PM   #10
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Does anyone know what Devcon would say about using Greenskin on a single layer floor (around here that means 3/4" advantec) for tile?
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Unread 01-05-2012, 04:59 PM   #11
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I got a verbal yes for 16" OC with 360 deflection. My floor is 24" OC TGI, so it needed a second 1/2" ply anyway.

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Unread 01-05-2012, 10:13 PM   #12
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Good to know, thanks for the info
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Unread 01-05-2012, 10:50 PM   #13
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Quote:
Originally Posted by Nate
Does anyone know what Devcon would say about using Greenskin on a single layer floor (around here that means 3/4" advantec) for tile?
Noble Co doesn't have a problem with it.
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Unread 01-06-2012, 05:51 PM   #14
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Yes, but if I count the primer noble cost me near double what Ditra does...
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