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 08-04-2008, 09:36 AM   #1
Joe L.
Registered User
 
Join Date: Nov 2006
Location: Huntingdon Valley, PA
Posts: 6
Exterior balcony advice

Hello everyone,

I have a 9' x 7' exterior balcony (wood substrate over occupied space) I'd like to tile with porcelain tile. My original plan was to install ice and water shield over the OSB, a sloped mortar bed, Ditra and then tile. I've since read through several previous threads regarding balconies and realize I need to make some changes. So far I have 2 questions.

1) The subfloor (3/4" OSB over 2x12s, 16 in. OC) was framed with no slope. How can I create a slope without getting into re-framing?
2) Can I use 1/4" or 1/2" Durock or Wonderboard in place of the 1-1/2" thick mortar bed as I am concerned about the finished height of the floor.

Thanks in advance,
Joe
Joe L. is offline   Reply With Quote
Sponsored Links
Unread 08-04-2008, 04:46 PM   #2
ceramictec
Tampa Florida Tile Contractor
 
ceramictec's Avatar
 
Join Date: Oct 2007
Location: Tampa, Florida
Posts: 26,457
Quote:
How can I create a slope without getting into re-framing?
doing a mud bed with a pitch would be easiest.

Quote:
Can I use 1/4" or 1/2" Durock or Wonderboard in place of the 1-1/2" thick mortar bed as I am concerned about the finished height of the floor.
it would be really hard to create a pitch using a cementboard, you will need to nail or screw the CBU in so having a pitch is nearly impossible with a cementboard on a flat deck.
__________________
Brian
........
..........Tampa Florida Tile Installation
..............^^--Check out our Blog--^^
Tampa, Florida installer of Schluter Kerdi/Kerdiboard waterproofed showers
Tampa, Florida installer of Laticrete HydroBan/HydroBan board waterproofed showers
ceramictec is offline   Reply With Quote
Unread 08-04-2008, 06:29 PM   #3
Davy
Moderator -- Mud Man
 
Davy's Avatar
 
Join Date: Jan 2003
Location: Princeton,Tx.- Dallas area
Posts: 33,116
I like putting down a membrane over the plywood but not Ice and Water shield. I've seen it rot out within 3-4 years. From what I've heard and seen, it just won't last under the cement bed. I have used Mercrete, it's made to go under the mud. I then mud the deck and apply another membrane of Mercrete over the mud, then tile it. No problems as of yet.
__________________
Davy

www.davystephenstile.com
Davy is online now   Reply With Quote
Unread 08-06-2008, 04:38 AM   #4
Joe L.
Registered User
 
Join Date: Nov 2006
Location: Huntingdon Valley, PA
Posts: 6
Thank you both for your replies. I'm going to look into the Merkrete.

Joe
Joe L. is offline   Reply With Quote
Unread 08-06-2008, 08:05 AM   #5
cx
Moderator emeritus
 
cx's Avatar
 
Join Date: Jul 2001
Location: Boerne, Texas
Posts: 92,279
Welcome back, Joe.

Poor idea to do the initial waterproofing of that deck with no slope.

If you were to frame in some slope (easy enough to remove the OSB, scab on some 2xs to create slope and put down new decking), you could even use just a CBU and Noble Deck, which is the only membrane system I know of that's indicated by its manufacturer for single waterproofing of decks over occupied space.

My opinion; worth price charged.
__________________
CX

Y'ALL NEW VISITORS READ THIS HERE!
cx is online now   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 11:42 PM.


Sponsors

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