Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Flooring > Tiling, ceramics, marble

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 08-26-2011, 11:50 PM   #1
Newbie
 
Join Date: Aug 2011
Location: Central Ohio
Posts: 13
Rewards Points: 10
Default

ceramic tile over fresh concrete question


I am planning on installing 12" tile over freshly poured concrete in a basement bathroom. The concrete was just poured today, and I was wondering how long I should wait to lay the tiles, and will I need to use a etching on it? Anything else you guys think I should know about before starting on it? Thanks!

brewcrew is offline   Reply With Quote
Old 08-27-2011, 06:07 AM   #2
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,860
Rewards Points: 2,368
Default

ceramic tile over fresh concrete question


I usually wait 24 to 48 hours----no etching--that would be bad.

Never had a problem.

__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 08-27-2011, 06:44 AM   #3
Newbie
 
Join Date: Aug 2011
Posts: 4
Rewards Points: 10
Default

ceramic tile over fresh concrete question


Quote:
Originally Posted by brewcrew
I am planning on installing 12" tile over freshly poured concrete in a basement bathroom. The concrete was just poured today, and I was wondering how long I should wait to lay the tiles, and will I need to use a etching on it? Anything else you guys think I should know about before starting on it? Thanks!
From a person who has layer tile all their life, never go over fresh concrete without putting an uncoupling membrane. The tile will crack as the concrete settles as this is what happens to almost all fresh pours. You can tile directly over fresh concrete after 3 to 5 years and even then you should put in an uncoupling membrane.
Also think about in floor heat in the bathroom. It may cost a little up front but if you intend on staying there for a bit I would suggest it.

Hope this helps.
Concrete Ideas is offline   Reply With Quote
Old 08-27-2011, 03:13 PM   #4
Newbie
 
Join Date: Aug 2011
Location: Central Ohio
Posts: 13
Rewards Points: 10
Default

ceramic tile over fresh concrete question


I like the idea of in floor heat, I am going to definately check into that. I think I will go with a membrane just to be on the safe side, thanks for the help!
brewcrew is offline   Reply With Quote
Old 08-27-2011, 03:23 PM   #5
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 10,243
Rewards Points: 2,136
Default

ceramic tile over fresh concrete question


Quote:
You can tile directly over fresh concrete after 3 to 5 years and even then you should put in an uncoupling membrane.
__________________
XXX
Bud Cline is offline   Reply With Quote
The Following User Says Thank You to Bud Cline For This Useful Post:
Marbledust (08-28-2011)
Old 08-27-2011, 03:32 PM   #6
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,860
Rewards Points: 2,368
Default

ceramic tile over fresh concrete question


Quote:
Originally Posted by Concrete Ideas View Post
s You can tile directly over fresh concrete after 3 to 5 years
Hope this helps.
---------------------------------------------
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 08-27-2011, 06:24 PM   #7
Newbie
 
Join Date: Aug 2011
Location: Central Ohio
Posts: 13
Rewards Points: 10
Default

ceramic tile over fresh concrete question


I'm not understanding all the smiley faces. Is there a inside joke I'm not getting?
brewcrew is offline   Reply With Quote
Old 08-27-2011, 06:47 PM   #8
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,860
Rewards Points: 2,368
Default

ceramic tile over fresh concrete question


I don't know who "concrete ideas" is---but his advice is questionable---

Decoupling is seldom used over concrete unless it has flaws---and waiting 3 to five years??

Look at some of Buds posts or mine---we set tile and build bathrooms--waiting 3 years would certainly slow down the jobs,-----Mike----
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 08-27-2011, 07:04 PM   #9
Newbie
 
Join Date: Aug 2011
Location: Central Ohio
Posts: 13
Rewards Points: 10
Default

ceramic tile over fresh concrete question


Ok, thank you Mike for clearing that up for me. I have never put any tile down before, and I was wanting to cover all my bases before I got started. Thanks again!
brewcrew is offline   Reply With Quote
Old 08-27-2011, 07:09 PM   #10
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,860
Rewards Points: 2,368
Default

ceramic tile over fresh concrete question


Bud Cline and Jazzman are the two most experienced and studied experts here----

Both are the best for answers that come from experience.
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 08-27-2011, 08:23 PM   #11
Pro Flooring Installer
 
rusty baker's Avatar
 
Join Date: Feb 2009
Location: SW Missouri
Posts: 3,919
Rewards Points: 2,108
Default

ceramic tile over fresh concrete question


Is this a new slab, a patch or an overlay and how thick is it?
__________________
The ads in my post are there without my permission. I do not endorse any of the products.
Semi-Retired Installer
Installing since 1973
rusty baker is offline   Reply With Quote
Old 08-27-2011, 09:02 PM   #12
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,071
Rewards Points: 2,000
Default

ceramic tile over fresh concrete question


For general flooring, it is assumed that concrete slab should be ok to tile over in 28 days, (test required), but will continue to cure and shrink for about a year or longer. The usual results are cracks in the field unless control joints were installed.

If you need to tile a slab soon after its placement, it's best to use a product such as Ditra. Actually not such as, use Ditra. Pour the slab today, install Ditra and tiles in 3 days. Bonds well no cracks.

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
The Following User Says Thank You to JazMan For This Useful Post:
rusty baker (08-27-2011)
Old 08-27-2011, 10:27 PM   #13
Newbie
 
Join Date: Aug 2011
Location: Central Ohio
Posts: 13
Rewards Points: 10
Default

ceramic tile over fresh concrete question


Thanks for the replies guys. The slap was poured to level out a very uneven room in the basement, and also to cover up drain pipes, and to cover the new lines for a sump pump. Parts of the floor took almost 6 inches, and some took 3 inches to get leveled out. I have plenty to keep me busy, so maybe I will wait 28 days or so before installing the tile. One last question, I have read about modified and unmodified thin set, is that only for tiles on a cement board? Which one will I need for concrete? Thanks again!


Jim
brewcrew is offline   Reply With Quote
Old 08-27-2011, 10:55 PM   #14
Pro Flooring Installer
 
rusty baker's Avatar
 
Join Date: Feb 2009
Location: SW Missouri
Posts: 3,919
Rewards Points: 2,108
Default

ceramic tile over fresh concrete question


Quote:
Originally Posted by JazMan View Post
For general flooring, it is assumed that concrete slab should be ok to tile over in 28 days, (test required), but will continue to cure and shrink for about a year or longer.

Jaz
I did not know that. For other floorcoverings, the rule is 28 days per inch(a 4" slab=112 days) then test.
__________________
The ads in my post are there without my permission. I do not endorse any of the products.
Semi-Retired Installer
Installing since 1973
rusty baker is offline   Reply With Quote
Old 08-27-2011, 11:11 PM   #15
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,071
Rewards Points: 2,000
Default

ceramic tile over fresh concrete question


Jim,

Either type of thin set will bond to concrete fine. However your choice depends on the system you chose and/or the type of tiles you select.

If you go direct to concrete, and use porcelain tiles, you'll need modified. Chances are you will select a porcelain tile so that's the one. If you go premium and go with Ditra, the answer will be different.

Rusty,

In all my years I've never heard of the "per inch" thing. Are you sure? Where did that come from? All the concrete stuff I've ever read say 28 days with no reference to thickness. Although I've always assumed we were talking standard 4" per norms.

Of course when you're talking residential below grade I always used to tell people to wait at least 6 months for vct. There are so many variables, sometimes even that wasn't long enough. The answer is different for ceramic though.

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


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 do I attach ceramic tile to ceramic tile? porchhen9 Remodeling 8 07-31-2011 02:59 PM
painting ceramic tile question ckr31 Painting 1 11-26-2010 04:23 AM
Ceramic floor tile on concrete basement floor w/toilet pedestal amp2oo1 Flooring 1 10-05-2009 07:31 AM
Joining carpet and ceramic tile rooms TedT Flooring 10 05-21-2008 08:25 PM
Ceramic tile installed over resiliant tile ramsfanjeff Flooring 1 11-26-2005 02:26 PM




Top of Page | View New Posts

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