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Old 03-13-2007, 04:49 PM   #1
CraigB
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To remove or not remove vinyl floor

First, thanks for any advise. I've done the search, and the research, and the leg work to my local national home improvement centers. I am obviously new to this so your help is greatly appreciated. I am re-doing my upstairs bathroom floor with ceramic 12x12 tile. The existing floor is a sheet vinyl floor(non-cushion). I am using the hardibacker boards. I know I have to cement down the boards then secure them with their screws, but once and for all, does the vinyl floor have to be pulled up or can I install over it. The house is ten years old and structurally sound. Thanks again!!
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Old 03-13-2007, 05:11 PM   #2
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Remove it and any 1/4" underlayment that might be there as well and then report back with what you find as far as a subfloor under it.
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Old 03-13-2007, 05:11 PM   #3
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Hi Craig, welcome! I would remove it and the underlayment it's on. Start fresh. Do you know what thickness the subfloor is?
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Old 03-13-2007, 11:36 PM   #4
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I am also a little curious as to why I can't put down the hardi backer board over the vinyl. I have 3/4 osb subfloor plus the 1/4 underlayment for the vinyl. This also is for a small bathroom. Any help would be great!
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Old 03-13-2007, 11:48 PM   #5
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If for no other reason:

Removing the vinyl and underlayment takes an unknown variable out of the equation. Sometimes subfloor, and especially vinyl underlayment, isn't put down with the same level of respect required for tile installations. So why build on top of it? Removing it not only takes it out of the equation, but offsets some of the new tile floor's thickness so it's not so high (compared to the adjoining floors).
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Old 03-14-2007, 10:14 PM   #6
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Thanks Bubba! Can I tear up the old underlayment and then use Ditra??? I have 3/4 flooring under. I was under the understanding I needed at least a 1 1/4 inch floor thickness under the tile. Is Ditra a better choice? Or should I just lay 1/4 ply and a 5/16 durock or 1/4 backer? Also I spoke tonight with a tile man and he says going over vinyl is a better choice??? I think I would tend to agree with you more on this. Thanks for the help.
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Old 03-15-2007, 10:03 PM   #7
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Ok let me tell you from experience take the extra time and tear the vinyl up. if it is not a big room then it shouldnt be a big deal. When I got done ripping mine up I had some of the backing paper left down. I went ahead and went over that but I knew at least what was down was down to stay.
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Old 03-15-2007, 10:33 PM   #8
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Yep, you can tear it out and use Ditra provided you're up to snuff on the Deflecto calculator. I'd make sure the 3/4" floor is well secured before you put the Ditra in.



Quote:
Originally Posted by KYLE
I spoke tonight with a tile man and he says going over vinyl is a better choice???
It is better......for him because he doesn't have to do the work. Nor is he going to cover any problems that manifest themselves down the road. Tiny movement that occurs under the tile is the type of problem that takes several months to a few years to rear its ugly head. TEAR IT OUT....and hire another tile guy
(or better yet do it yourself and we'll help you through.)
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Old 03-16-2007, 04:04 AM   #9
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Thanks Bubba
Deflecto came to 528. So I think I will go ahead and tear it out as you mentioned to avoid a lot of headache down the road. Thanks for the help. I may come back for more once I start.
So backer OR Ditra is ok depending on the height I'd like to end up with?
Thanks again for the help.
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Old 03-16-2007, 05:26 AM   #10
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Kyle,

It all depends on what you want to do with the underlayment. You can use CBU or ditra. Totally up to you. If you need the height, go with 1/4 cbu. That should be good enough. If not 1/2 cbu. If you don't need the height, ditra is the way to go.

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Old 03-16-2007, 06:03 AM   #11
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Quote:
Originally Posted by KYLE
Or should I just lay 1/4 ply and a 5/16 durock or 1/4 backer?
Never ever ever ever ever use 1/4" plywood under the tile. 3/8" minimum, and steer clear of and CDX grade stuff.
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Old 03-16-2007, 03:08 PM   #12
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Talking

Thanks for all the help! Hopefully all will go well.
Kyle
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