Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Flooring

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-12-2011, 08:19 AM   #1
Newbie
 
Join Date: Nov 2011
Posts: 3
Share |
Default

porcelain tile challenge


I have a basement flooring project. We live on a rocky hill with concrete subfloor on 1/2 of the basement and wood on the other half (pine tung & groove over 16-18" joists). I'd like to put down a uniform floor, so am thinking about porcelain tile. Am I asking for problems? Wondering:

what thickness of Wonderboard to use, particularly on the wood floor
if I use 1/2" wonderboard over the wood it will raise the level of the floor above the concrete. Do I use a patching material?
I'm assuming the entire floor be prepped and level before starting. What if there's a drop off in one corner? Could be 2-4"

thanks.
EF

efdupont is offline   Reply With Quote
Old 11-12-2011, 12:08 PM   #2
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,069
Default

porcelain tile challenge


Hi EF,
Quote:
I have a basement flooring project. We live on a rocky hill with concrete subfloor on 1/2 of the basement and wood on the other half (pine tung & groove over 16-18" joists). I'd like to put down a uniform floor, so am thinking about porcelain tile. Am I asking for problems? Wondering:
If both sides start out at an even plane, that is not a good situation to proceed, cuz...... You need plywood over the t&g planks before you can install a concrete backer or membrane. Depending of the width and condition of the planks you may be able to go with 1/2" underlayment grade ply. Then install 1/4" backer or a membrane such as Ditra or one of Noble's.

Alternatively you might consider removing the planks and replacing with 3/4" t&g making everything in plane. Then install the membrane on both surfaces.

Quote:
I'm assuming the entire floor be prepped and level before starting. What if there's a drop off in one corner? Could be 2-4"
Prep first on the concrete and the wood if you use a membrane. If you use a concrete backer on the wood you will make the floor flat after. 2-4" is a tremendous amount to be off. Also remember the floor needs to be flat, not necessarily level.

Jaz

__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Old 11-13-2011, 03:43 PM   #3
Newbie
 
Join Date: Nov 2011
Posts: 3
Default

porcelain tile challenge


Hi Jaz,

Thanks for responding! Your suggestions are in line with, and may be more complete than what I'm hearing from the two masons I'm talking with.

*One mason suggested 1/2 plywood with a wire mesh on top (no membrane) then "mud" into which we'd set the ceramic tile, which he sez can be used to level out remaining inconsistencies.

Another recommends 1/2 inch Wonderboard. Is Wonderboard as good as the 1/2" plywood? And if you use Wonderboard, do you still need a membrane?

I'm tempted by the idea of removing the subflooring and putting down a 3/4" plywood, as there is a low ceiling in the basement. And I'd like to not lose the extra 1-1.5" of headroom.

Your thoughts?

Thanks again!

EF
efdupont is offline   Reply With Quote
Old 11-13-2011, 07:26 PM   #4
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,069
Default

porcelain tile challenge


Hi Frank,

I'd like to know if both side are in perfect plane where they meet. Very important.

I don't like either method your masons suggested, (masons, why masons to set tiles?), but some clarification is needed in the first method.

Quote:
• One mason suggested 1/2 plywood with a wire mesh on top (no membrane) then "mud" into which we'd set the ceramic tile, which he sez can be used to level out remaining inconsistencies.
The term "mud" is sometimes thrown out to confuse. Mud in tilework is a mix of sand and Portland cement placed about 3/4"-1 1/2" thick, or thicker, as the base for tiles. However, often the word "mud" is used when thin set mortar is used instead. Thin set is the adhesive used to bond tiles in either case, it is NOT "mud".

It sounds as if you've been told about what is know as a "Jersey Mud Job", it's not a good thing. Please let us know more about what he was proposing with this method.

Quote:
• Another recommends 1/2 inch Wonderboard. Is Wonderboard as good as the 1/2" plywood?
You can NOT install any tile backer direct over plank subfloors or on a concrete slab.

So, let me know if the two areas are in plane in which case I'll most likely again suggest replacing the planks with 3/4" ply and then using a membrane over both.

Jaz
__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Old 11-13-2011, 09:28 PM   #5
Newbie
 
Join Date: Nov 2011
Posts: 3
Default

porcelain tile challenge


Jaz,

The two sides are close to alignment, not perfect, with the concrete around 1/8" above the T&G wood subflooring. Other complications, the concrete actually slopes a bit from a high spot to the line where it meets the wood, and there's not a simple straight line between the concrete side and the wood side.

I should send you a picture. Or better yet hire a tile man familiar with the Ditra/Schluter system, which sounds great (as you describe) over 3/4" plywood and the concrete.

Thanks, I think I'm getting it.

Frank "EF"
efdupont is offline   Reply With Quote
Old 11-13-2011, 10:37 PM   #6
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,069
Default

porcelain tile challenge


Quote:
Thanks, I think I'm getting it.
From what I've gathered I think replacing the planks with 3/4" t&g ply glued and shimmed to meet the concrete will do the job. You are then left with making the floors flat. Sounds like the slab may need some help which of course would run into the wood side too.

I'd have to be there or have pics with details to xplain better.

Jaz

__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Reply

Tags
porcelain tile, subflooring


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to anchor toilet flange to porcelain tile? bobmg Plumbing 32 08-19-2013 09:32 PM
Installing Porcelain tile, complete guide? Total Sugar Flooring 5 03-07-2011 09:22 PM
Re-tiling a bathtub surround BillyB44 Remodeling 39 01-24-2011 06:10 PM
Subfloor and Porcelain tile prep sugarhousemama Flooring 4 12-03-2010 06:47 PM
Sealing Porcelain Tile Questions eis61374 Flooring 2 03-23-2009 07:11 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.