Ceramic Tile Advice Forums - John Bridge Ceramic Tile

Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet


Advertiser Directory
JohnBridge.com Home
Buy John Bridge's Books

Go Back   Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > Tile Forum/Advice Board

Sponsors


Reply
Thread Tools Search this Thread
Unread 05-28-2008, 12:02 PM   #1
Evert
Registered User
 
Join Date: Jul 2002
Location: Boulder, Colorado
Posts: 83
kitchen granite tile countertop, grout and second question

We are starting on the kitchen counter, and are using 12" granite tiles. Two questions are: what type of grout should we use, unsanded? Epoxy? The color is Ghibili, a soft gray.

The second question is whether we need to use poly film in the sink area, between the cement board and the plywood, and if we do should we thinset the CB to the poly or just screw the CB down over the poly?

The bath tub surrond and all floors are done, thanks once again to John and this site. Will post pictures soon.
Evert is offline   Reply With Quote
Sponsored Links
Unread 05-28-2008, 01:17 PM   #2
GraniteGirl
Ms. Makita
 
GraniteGirl's Avatar
 
Join Date: Dec 2004
Location: Maple Bay, BC (On beautiful Vancouver Island!)
Posts: 2,384
Send a message via Yahoo to GraniteGirl
I am not going to even try to advise on your other questions, but I will tell you to test your stone for absorption. Ghibli is a a pretty thirsty Indian stone and will most likely need some sealer.

Would LOVE to see your pictures.
__________________
Adriana

www.IslandSoapstone.com

Relax - it's a rock! What could go wrong?!

GraniteGirl is offline   Reply With Quote
Unread 05-28-2008, 04:29 PM   #3
kerdibird
Registered User
 
Join Date: Feb 2008
Posts: 325
No poly, just screw it.
You could use thinset under the cbu, but it's not necessary for a countertop.

You should consider using Ditra instead because it gives you less build-up, and more waterproofing.
You could also use a liquid/bonded surface applied membrane like Kerdi or Redguard for water control.
kerdibird is offline   Reply With Quote
Unread 05-28-2008, 06:28 PM   #4
Ken
welchtile.com
 
Join Date: Jan 2008
Location: Grand Rapids, MI
Posts: 1,082
Not sure what art is thinking, however you should always thin-set CBU down to a horizontal substrate and properly fasten it.
__________________
Ken
Ken is offline   Reply With Quote
Unread 05-28-2008, 06:37 PM   #5
kerdibird
Registered User
 
Join Date: Feb 2008
Posts: 325
And why pray tell is that?
We're not talking about a floor here.
I'd be happy to see two layers of ply alone with tile right on it for a counter top.
Adding cbu with redgard or plywood with ditra are both options for the guy who's concerned about water damage.
kerdibird is offline   Reply With Quote
Unread 05-28-2008, 06:39 PM   #6
kerdibird
Registered User
 
Join Date: Feb 2008
Posts: 325
You can't use redguard very well over plywood, which would be my only reason to use cement board on a tile countertop, which is why ditra with one layer of 3/4 ply is the most sensible option imo.
kerdibird is offline   Reply With Quote
Unread 05-28-2008, 06:41 PM   #7
Ken
welchtile.com
 
Join Date: Jan 2008
Location: Grand Rapids, MI
Posts: 1,082
Because thin-setting the backerboard down to the top's plywood, would be in according to TCNA Method C513 (Wood Base Countertop Installation) in the 2008 handbook.
__________________
Ken
Ken is offline   Reply With Quote
Unread 05-28-2008, 06:43 PM   #8
bigd777
Registered User
 
Join Date: Oct 2007
Location: Simi VALLEY ca
Posts: 38
why not just mud the counter top
bigd777 is offline   Reply With Quote
Unread 05-28-2008, 06:46 PM   #9
kerdibird
Registered User
 
Join Date: Feb 2008
Posts: 325
Tiling directly over plywood is also deemed respectable in some circumstances.
kerdibird is offline   Reply With Quote
Unread 05-28-2008, 06:47 PM   #10
Ken
welchtile.com
 
Join Date: Jan 2008
Location: Grand Rapids, MI
Posts: 1,082
Mudwork, obviously would be the best option, in my opinion. But it does not seem to me like a very friendly time for a DIY to try. Though I could be wrong. We've walked many people through mud work on here.
__________________
Ken

Last edited by Ken; 05-28-2008 at 06:53 PM.
Ken is offline   Reply With Quote
Unread 05-28-2008, 06:59 PM   #11
kerdibird
Registered User
 
Join Date: Feb 2008
Posts: 325
Mudding countertops?
Come on guys.
kerdibird is offline   Reply With Quote
Unread 05-28-2008, 07:15 PM   #12
bigd777
Registered User
 
Join Date: Oct 2007
Location: Simi VALLEY ca
Posts: 38
u would never tile over plywood . how long have been doing tile .i would never do that .its going to fail
bigd777 is offline   Reply With Quote
Unread 05-28-2008, 07:17 PM   #13
kerdibird
Registered User
 
Join Date: Feb 2008
Posts: 325
What do you know of tiling over plywood?
kerdibird is offline   Reply With Quote
Unread 05-28-2008, 07:18 PM   #14
bigd777
Registered User
 
Join Date: Oct 2007
Location: Simi VALLEY ca
Posts: 38
thats its not a good thing to do
bigd777 is offline   Reply With Quote
Unread 05-28-2008, 07:19 PM   #15
Ken
welchtile.com
 
Join Date: Jan 2008
Location: Grand Rapids, MI
Posts: 1,082
Back on subject guys. Quit debating the undebatable.

MODERATOR -- PLEASE CHECK IN.
__________________
Ken
Ken is offline   Reply With Quote
Reply

Stonetooling.com   Tile-Assn.com   National Gypsum Permabase


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -6. The time now is 11:11 PM.


Sponsors

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright 2018 John Bridge & Associates, LLC