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 05-25-2013, 02:06 PM   #1
berkleymi
Registered User
 
Join Date: Jan 2006
Posts: 18
Tile on drywall in DRY area?

Hello folks

My wife and I are mid bath remod and are about to move on to the tiling phase of our project. The shower walls are to be a 4x16 ceramic subway-ish tile and the floor is a 12x24 limestone. The shower is to be a small 31.5x35.5 corner unit that uses a slim modern Duravit brand shower pan and euro glass. We have intentions to tile the entire walls on both sides of the shower. My plan was to install this tile directly to the new drywall on the right of the shower and over the window shown. As I sat and thought about my next steps today, I started to think that despite the areas to the left and right of the shower glass being dry, that I might still want to use a cbu instead of the drywall I already hung...

Thoughts, comments, help...

Thanks!
Attached Images
 
berkleymi is offline   Reply With Quote
Sponsored Links
Unread 05-25-2013, 02:07 PM   #2
berkleymi
Registered User
 
Join Date: Jan 2006
Posts: 18
Another view... Again the plan was to tile this entire wall floor to ceiling.
Attached Images
 
berkleymi is offline   Reply With Quote
Unread 05-25-2013, 02:11 PM   #3
berkleymi
Registered User
 
Join Date: Jan 2006
Posts: 18
Last view...
Attached Images
 
berkleymi is offline   Reply With Quote
Unread 05-25-2013, 02:57 PM   #4
cx
Moderator emeritus
 
cx's Avatar
 
Join Date: Jul 2001
Location: Boerne, Texas
Posts: 94,477
Welcome back, Larry.

Tiling over drywall in a dry area is acceptable. So long as your wet area is completely contained within your glass walls and your moisture barrier behind the CBU is properly overlapped into your shower receptor (not sure how you'll manage that with what I see), you should be OK in that regard.

I have some concern for your floor installation. Your second layer of plywood subflooring appears to be incorrectly oriented with reference to your joist structure and is not likely doing you much, if any, good from a structural standpoint. What thickness is that plywood?

My opinion; worth price charged.
__________________
CX

Y'ALL NEW VISITORS READ THIS HERE!
cx is offline   Reply With Quote
Unread 05-25-2013, 04:25 PM   #5
berkleymi
Registered User
 
Join Date: Jan 2006
Posts: 18
Thanks for the input... Original floor was 1x6's flush with the joists and motar bed directly on top of that. I removed the original bed and kept the 1x6 planking running between the joist then added 2 layers of 19/32 ply. The first layer is running 90 degrees to the second layer shown. I figured that two layers would be adequate. I was planning to use 1/4 hardibacker which should get me flush to my finished hardwood after the limestone goes down.
__________________
Larry
berkleymi is offline   Reply With Quote
Unread 05-25-2013, 05:58 PM   #6
tilejoe
Registered User
 
tilejoe's Avatar
 
Join Date: Sep 2008
Location: Allentown, Bethlehem, Easton, PA
Posts: 2,302
Unfortunately, plywood gets its strength when installed perpendicular to the joists. The second layer as well. Will it matter? I don't know, but it would be good to fix it now and not find out.


Why kind of pan are you using?
__________________
Joe Lenner

Infinite Ceramic & Stone
www.infiniteceramic.com
NTCA Pennsylvania State Rep
CTEF Certified Installer #769
tilejoe is offline   Reply With Quote
Unread 05-25-2013, 07:32 PM   #7
berkleymi
Registered User
 
Join Date: Jan 2006
Posts: 18
We are using a Duravit tray like the one shown her but it measures 31x35...

http://www.duravit.us/website/homepa...html/p-1598014
__________________
Larry
berkleymi is offline   Reply With Quote
Unread 05-26-2013, 12:00 PM   #8
Lakee911
Registered User
 
Join Date: Apr 2006
Location: Lexington, KY
Posts: 1,054
Is this a bathroom? I've never seen a sliding glass door in a bath before...
Lakee911 is offline   Reply With Quote
Unread 05-26-2013, 03:08 PM   #9
cx
Moderator emeritus
 
cx's Avatar
 
Join Date: Jul 2001
Location: Boerne, Texas
Posts: 94,477
I believe that's a window, Jason.
__________________
CX

Y'ALL NEW VISITORS READ THIS HERE!
cx is offline   Reply With Quote
Unread 05-26-2013, 04:28 PM   #10
XrayX
Registered User
 
Join Date: May 2013
Posts: 74
Think u r going 2 b just fine with cement board on that plywood. As each layer is oriented in a different direction so even if someone says u put it in wrong it's only just a little more than half of the layers in the ply. If u put in 2 over planks ΓΌ can probably drive a car on it. (Don't try this at home) N yes it's cool 2 tile over drywall, even cool 2 use mastic if its always going 2 b dry. Just don't try it in the shower. Also taping with thin set n fiberglass in the shower is crucial the water proof like u r going out 2 sea. N u r golden.
XrayX is offline   Reply With Quote
Unread 05-26-2013, 04:35 PM   #11
cx
Moderator emeritus
 
cx's Avatar
 
Join Date: Jul 2001
Location: Boerne, Texas
Posts: 94,477
Welcome, Ray. Please put some background information into your User Profile for us so our visitors can see what sorta fella is giving them the information.

And we've got plenty bandwidth hereabouts so you can feel free to use whole words if you like.
__________________
CX

Y'ALL NEW VISITORS READ THIS HERE!
cx is offline   Reply With Quote
Unread 05-26-2013, 04:41 PM   #12
XrayX
Registered User
 
Join Date: May 2013
Posts: 74
If I can get my point across, that's all that maters. N I can't really prove my background so why. My info should tell u I know what is up. No disrespect ;]
XrayX is offline   Reply With Quote
Unread 05-26-2013, 06:12 PM   #13
berkleymi
Registered User
 
Join Date: Jan 2006
Posts: 18
I didn't feel like the drywall I hung was proper for a long term install and replaced it today with backer board...piece of mind I guess. The floor on the other hand is two layers of 23/32 ply not 19/32 and the first is correctly run. I'm thinking that a full 1.437" floor section is more than enough on 2x8 joists spanning 10"

And yes... Is a window but kinda a door... 50's modern house.

Thanks for all your help guys!
__________________
Larry
berkleymi is offline   Reply With Quote
Unread 05-26-2013, 06:35 PM   #14
Topspin
SchluterUgrad
 
Topspin's Avatar
 
Join Date: Jul 2006
Location: Seattle Area
Posts: 2,391
More than enough?

Quote:
thank you for using the John Bridge Forums Deflect-O-Lator :-)

For joists that are SYP or Douglas Fir, in good condition, 7.25 inches tall, 1.5 inches wide, 16 inches on center, and 10 feet long between supports, the deflection calculated is 0.250 inches.

This translates to a deflection of L / 480.

Since the maximum deflection for tile is L / 360, and for natural stone is L / 720, your floor is rated for Ceramic tile, Congratulations!
What's under your joists? Access for a beam centerline?
Attached Images
 
__________________
Kevin



Last edited by Topspin; 05-26-2013 at 06:44 PM.
Topspin is offline   Reply With Quote
Unread 05-26-2013, 07:24 PM   #15
berkleymi
Registered User
 
Join Date: Jan 2006
Posts: 18
Yes I could install a beam if needed.
__________________
Larry
berkleymi 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
drywall mud in wet area Rotorcraft Tile Forum/Advice Board 4 11-16-2007 03:26 PM
must i wait for shower area to dry before i repair grout? kittypawz Tile Forum/Advice Board 4 05-05-2006 08:29 AM
marble in dry area over sheetrock customceramicsllc Professionals' Hangout 2 03-20-2006 06:30 PM
Drywall OK backer for dry? abell Tile Forum/Advice Board 3 02-03-2004 06:23 PM
glass block- dry area Jason346 Tile Forum/Advice Board 7 06-24-2003 06:39 AM


All times are GMT -6. The time now is 08:19 AM.


Sponsors

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Copyright 2018 John Bridge & Associates, LLC