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Old 05-16-2012, 09:13 PM   #16
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OSB + Plywood = solid base for tiling?


Ok, thanks a lot and I will use powdered thin set.
And last question, I have number of screws driven into the joists through the plywood and subfloor OSB, I can still remove them before I install cement boards. Should I leave them or should I remove them?
I have seen different comments on different websites. Some say you never screw into joists and some say you have to.

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Last edited by Denisrus; 05-16-2012 at 09:20 PM. Reason: forgor to ask the question
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Old 05-16-2012, 09:21 PM   #17
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OSB + Plywood = solid base for tiling?


The Schluter or Latacrete membranes work very well and only add 1/8" --tried and true method--so you have the choice Ditra or Wonder board--
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Old 05-16-2012, 09:59 PM   #18
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OSB + Plywood = solid base for tiling?


Please never mind about screws driven into joists, I will remove them.
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Old 05-16-2012, 10:08 PM   #19
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OSB + Plywood = solid base for tiling?


I use a roofing gun and roofing nails--those screws are slow to install---and pricey and the heads sometimes protrude--

Mesh the seams as you install the tile--this avoids the possibility of having a hump---
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Old 05-16-2012, 10:30 PM   #20
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OSB + Plywood = solid base for tiling?


Tussah mike 1 1/2 hot dipped galvanized roofing nails, if the op has the equipment then all for it!
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Old 05-16-2012, 11:00 PM   #21
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OSB + Plywood = solid base for tiling?


Hi all,

Too late now, but that is not the recommended type of ply there. That is the cheapo stuff looks like. I know you said you can't read the stamp, but what does your receipt say? Just for info at this stage.

Never use 1/2" trowel for the thin set under any CBU. Where did that come from? !/4x1/4x1/4 is the right one, and make the thin set a little thinner than normal. I recommend Ditra though, so make sure you get both types of thin set. Ditra will save you a little over 1/8", so you will be at about 1 1/4" higher than the subfloor.

Acrylpro is bad stuff, plus you get to pay 3-4 times more than the right stuff which comes only in a bag.

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Old 05-16-2012, 11:24 PM   #22
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OSB + Plywood = solid base for tiling?


Quote:
Too late now, but that is not the recommended type of ply there. That is the cheapo stuff looks like. I know you said you can't read the stamp, but what does your receipt say? Just for info at this stage.
the receipt says: 4x8-3/4 SPRU <A>

Ditra would be too expensive for just one bathroom, I will only use 50% of the roll and will pay $150 CAD.

I will have to go with cement boards.
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Old 05-16-2012, 11:34 PM   #23
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OSB + Plywood = solid base for tiling?


OK, not enough info on the receipt. It doesn't matter now, but you can check it out next time you're at the lumber yard.

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Ditra would be too expensive for just one bathroom, I will only use 50% of the roll and will pay $150 CAD.
Yes the small roll is only 54 ft. but too much for you. $1.50 a sq. ft. is a good price. Concrete board will work just fine for you. It's just gonna raise the floor another 3/16" and waterproofing isn't a big issue for you.

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Old 05-16-2012, 11:47 PM   #24
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Acrylpro is bad stuff, plus you get to pay 3-4 times more than the right stuff which comes only in a bag.
I will be using Versabond fortified mortar as I already have it, used it for Durock panels seams on the walls. I have read a lot here that is not the best stuff but still would work (will NEVER, NEVER ask Home Depot guys for advice). The only problem is, it is grey and I am planning to use white grout. Would it work?
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Old 05-16-2012, 11:52 PM   #25
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Spend the money on some white---some of the thinset will squeeze up and need to be removed--Gray will work,but you will spend more time than you like removing the gray squeeze up than you like--
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Old 05-16-2012, 11:56 PM   #26
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Gray will work, just be sure to keep the joints clean. How old is that opened bag of gray Versa? What kind and size tiles will you be using?

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(will NEVER, NEVER ask Home Depot guys for advice).
Now you're learning. But that's the best reason to not give them any of your $$$. They don't care to hire people that know stuff.


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Old 05-17-2012, 12:48 AM   #27
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How old is that opened bag of gray Versa? What kind and size tiles will you be using?
The bag was opened maybe for a month but I wrapped it in garbage bag, so it was sealed.
Ceramic tiles, 13x13.
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Old 05-17-2012, 10:57 AM   #28
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OSB + Plywood = solid base for tiling?


I have got another problem - toilet installation. If I rise the floor by 1 1/2", I don't think I can find proper wax ring, I have to go to the plumbing section in this forum.
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Old 05-17-2012, 01:22 PM   #29
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OSB + Plywood = solid base for tiling?


Quote:
Originally Posted by Denisrus
I have got another problem - toilet installation. If I rise the floor by 1 1/2", I don't think I can find proper wax ring, I have to go to the plumbing section in this forum.
You can find a wax ring with a plastic ring end on it the name escapes me now but they are for this reason. HD carries them.
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Old 05-17-2012, 01:54 PM   #30
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OSB + Plywood = solid base for tiling?


Well, I know I can but those, but for such a big step in flooring height I would have to put two wax rings on top of each other. I used flange extension rings one day and they leaked, I dont know if I did something wrong. In my other bathroom the plumber used two wax rings but now I will go even higher.
Did anybody try to remove glued plywood (to OSB)? I am thinking now to rip it and put exterior grade 1/2", then I will not have that many issues.

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