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-   -   bathroom subfloor (Basement) (http://www.diychatroom.com/f19/bathroom-subfloor-basement-125110/)

BlueBSH 11-30-2011 12:03 PM

bathroom subfloor (Basement)
 
I am getting very close to doing my basement bathroom floor, my basement is done with dricore, HOWEVER, my bathroom we want stone tile, and you can not dricore then put stone tile over it... so the basement is 7/8" higher everywhere then the bathroom, I am looking for a fix to this... was wondering if this idea would work...

(note: i do not want to use self leveling concrete, I've had nothing but bad luck, and if I ever redid the basement again I'd have a much higher spot if dricore was ever ditched)

my idea right now is to put 1/2" or 3/4" ridgid foam down then put a plywood subfloor over that, tapcon that down, ditra over it then tile

good idea? bad idea? other ideas?

titanoman 11-30-2011 02:07 PM

Why not glue down a couple layers of hardibacker?

BlueBSH 11-30-2011 02:09 PM

Quote:

Originally Posted by titanoman (Post 782329)
Why not glue down a couple layers of hardibacker?

I was told in the past that is a bad idea

titanoman 11-30-2011 02:11 PM

Quote:

Originally Posted by BlueBSH (Post 782332)
I was told in the past that is a bad idea

You might be right? Why?

BlueBSH 11-30-2011 02:13 PM

Quote:

Originally Posted by titanoman (Post 782335)
You might be right? Why?

no idea, someone on here told me that in the past :laughing:

titanoman 11-30-2011 02:50 PM

Quote:

Originally Posted by BlueBSH (Post 782337)
no idea, someone on here told me that in the past :laughing:

Maybe trapping moisture would eventually cause the glue to fail. Use tapcoms too. I don't know. I'm just a carpenter, nota tile guy.

BlueBSH 11-30-2011 08:45 PM

no one else that has expiernce in this?

Bud Cline 11-30-2011 08:48 PM

Quote:

no one else that has expiernce in this?
You want a voice-of-experience?

DON'T DO IT!

BlueBSH 11-30-2011 08:49 PM

Quote:

Originally Posted by Bud Cline (Post 782726)
You want a voice-of-experience?

DON'T DO IT!


and the reason not to is? sorry but "dont do it" is never enough for me, I like facts and reasons behind ideas :laughing: especially when building science says its an ok idea

http://www.buildingscience.com/docum...g-your-basment figure 1 is the idea I was going for

Bud Cline 11-30-2011 08:54 PM

Natural stone tile installations require double the strength of the substrate as what is required for regular ceramic tile. Natural stone tiles have imperfections and faults built in and require a solid base for installation.

Foam board ain't the answer. Especially foam board with plywood Mickey Moused over the top of it. The foam board will give, the plywood seams will rock and roll, the stone tile will remove itself in no time.

There how's that?

DON'T DO IT!

BlueBSH 11-30-2011 08:57 PM

Quote:

Originally Posted by Bud Cline (Post 782733)
Natural stone tile installations require double the strength of the substrate as what is required for regular ceramic tile. Natural stone tiles have imperfections and faults built in and require a solid base for installation.

Foam board ain't the answer. Especially foam board with plywood Mickey Moused over the top of it. The foam board will give, the plywood seams will rock and roll, the stone tile will remove itself in no time.

There how's that?

DON'T DO IT!

Thanks for the explination, only way to learn is to get the reason why! :yes:

What about skipping the stone tile and going with ceramic or a floating ceramic? but using the same flooring system (xps then ply)

Bud Cline 11-30-2011 09:03 PM

Quote:

What about skipping the stone tile and going with ceramic
Same problem. Self demolishing grout. A urethane grout might hold up.

Quote:

What about a floating ceramic?
Same problem. You could try Snapstone, it comes with its own urethane grout but I would be more comfortable with the tile adhered to the substrate. But then, the major issue is the substrate.:)

I still have a suggestion, wanna hear it?:)

titanoman 11-30-2011 09:26 PM

I still don't know why my hardibacker idea won't work. Anybody?:whistling2:

Bud Cline 11-30-2011 09:27 PM

Go ahead and do it and you'll see why it won't work.:)

Have you ever attached any cement board to concrete?

titanoman 11-30-2011 09:30 PM

Quote:

Originally Posted by Bud Cline (Post 782759)
Go ahead and do it and you'll see why it won't work.:)

Have you ever attached any cement board to concrete?

What the heck kind of an answer is that? :laughing:


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