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 11-30-2011, 10:31 AM   #1
Newbie
 
Join Date: Nov 2011
Posts: 26
Share |
Unhappy

Gap between tub and durock (not lip)


hi everyone!
I'm re-doing a tub tile surround and ran into this problem. After finishing the Durock over a 6mil vapor barrier, I noticed that there is a one inch (almost) gap between the Durock and tub. The other two sides are fine; Durock stops 1/4" above tub lip.
I'm using a 1/2" porcelain tile with 1/4" v-notch trowel. So it covers 3/4" thickness, but there will still be a gap of 1/4" between tile and tub.
Is there any solution to this other than ripping out the Durock and reinstalling it on plywood board to account for gap?
Thanks!

megablok is offline   Reply With Quote
Old 11-30-2011, 10:43 AM   #2
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,676
Default

Gap between tub and durock (not lip)


Your tile is only 1/2"? What 1/2" X 1/2" square or what?

What kind of tile adhesive are you using?

Bud Cline is online now   Reply With Quote
Old 11-30-2011, 11:18 AM   #3
Newbie
 
Join Date: Nov 2011
Posts: 26
Default

Gap between tub and durock (not lip)


Hi bud,
The tile is 12x24, 1/2" thick porcelain. I'll be using topflex mortar to lay it.
Thanks.
megablok is offline   Reply With Quote
Old 11-30-2011, 12:30 PM   #4
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 3,968
Default

Gap between tub and durock (not lip)


Quote:
I noticed that there is a one inch (almost) gap between the Durock and tub.
Too bad you didn't notice that before.

Quote:
I'm using a 1/2" porcelain tile with 1/4" v-notch trowel. So it covers 3/4" thickness, but there will still be a gap of 1/4" between tile and tub.
First of all you do not use a 1/4" V trowel for tiles like that. Secondly, the correct trowel, (probably a 1/4x3/8x1/4"), will leave a thickness of about 2/3 the size of the notch. So the trowel I recommend above will leave about 3/16-1/4" (3/8" depth), of thinset. However once you smish the tile into it, it'll add about 3/32" 1/8" max. You'll be lucky if it all adds up to 5/8", but I would want the entire tile inside the tub flange.

You should shim out the wall probably.

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 11-30-2011, 01:55 PM   #5
Newbie
 
Join Date: Nov 2011
Posts: 26
Default

Gap between tub and durock (not lip)


Thanks Jazman. I will check the trowel this evening. I'm really not excited about removing the durock to shim the wall.
I am wondering if someone else had the same problem during the tiling process and did something creative!
megablok is offline   Reply With Quote
Old 11-30-2011, 01:58 PM   #6
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,676
Default

Gap between tub and durock (not lip)


Hey mega,

This "gap" of which you speak? Is it a vertical gap from the top of the tub to the bottom of the cement board? If so that's no problem at all.
Bud Cline is online now   Reply With Quote
Old 11-30-2011, 02:26 PM   #7
Newbie
 
Join Date: Nov 2011
Posts: 26
Default

Gap between tub and durock (not lip)


Hi bud,
Its not the vertical gap. Its horizontal gap. Its between the tub edge and wall. I have posted a picture under the "photos" link above - It is called the TubGap Problem...
Thanks!

Last edited by megablok; 11-30-2011 at 02:29 PM. Reason: Added picture
megablok is offline   Reply With Quote
Old 11-30-2011, 02:38 PM   #8
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,676
Default

Gap between tub and durock (not lip)


Yup, that's a gap, and a fine gap it is too!

When you add the tile to the wall and imagine a little thinset under the tile - how big will the gap be then? It may be caulk-able. Not the best of circumstances. I see why you wouldn't want to shim the wallboard but that's what should have been done even if it meant shimming the entire wall.

You could add another layer of cement board then deal with the edge of that board by cutting tile slivers to dress the edge. You could also add another layer of cement board and use extra wide metal tile edging to cover that cement board edge.

Is it too late to move the tub a little?
Bud Cline is online now   Reply With Quote
Old 11-30-2011, 08:36 PM   #9
Newbie
 
Join Date: Nov 2011
Posts: 26
Unhappy

Gap between tub and durock (not lip)


Yeah. I had bought a 5/8" plywood to account for the gap. But in the hurry to finish, forgot to put it up. Aaah. What a predicament.

Cannot move the tub. The tile expert in the store recommended against double layering Durock.

I may just have to take it down and redo it.
Also, I have vapor barrier behind durock. Do I still need to do redguard?
megablok is offline   Reply With Quote
Old 11-30-2011, 08:43 PM   #10
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,676
Default

Gap between tub and durock (not lip)


Quote:
The tile expert in the store recommended against double layering Durock.
WHAT ?
NONSENSE !

What "tile expert" are you talking about? I hope you aren't talking about Home Depot or Lowe's!
Bud Cline is online now   Reply With Quote
Old 11-30-2011, 08:50 PM   #11
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 25,850
Default

Gap between tub and durock (not lip)


We always use 1/4 lattice to shim out the walls then the tile board. Far cheaper then two layers of tile board.
joecaption is online now   Reply With Quote
Old 11-30-2011, 09:43 PM   #12
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 3,968
Default

Gap between tub and durock (not lip)


Quote:
We always use 1/4 lattice to shim out the walls then the tile board. Far cheaper then two layers of tile board.
That's great, but he needs to shim out at least 1".

Quote:
Yeah. I had bought a 5/8" plywood to account for the gap. But in the hurry to finish, forgot to put it up.
Plywood wouldn't have been such a good idea either.

Quote:
Also, I have vapor barrier behind durock. Do I still need to do redguard?
You should not have both. I believe the surface membrane is much better. I'd remove the one over the studs if you remove the board.

Please let us know where you found a "Tile Expert" at a retail store so we can commend them.

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 11-30-2011, 09:56 PM   #13
Newbie
 
Join Date: Nov 2011
Posts: 26
Default

Gap between tub and durock (not lip)


@ bud
The tile "expert" at the tile store that is. LOL.
I may just take it down and put furring strips on it. Ugh.

Another question. Is the Redgard needed on top of the Durock if there is vapor barrier behind it?

Also, does the orientation of the Durock board matter? I have some of the boards mounted such that "Durock" reads vertically instead of horizontally.

Thank you!
megablok is offline   Reply With Quote
Old 11-30-2011, 10:21 PM   #14
Tileguy
 
Bud Cline's Avatar
 
Join Date: Mar 2006
Posts: 9,676
Default

Gap between tub and durock (not lip)


Quote:
Another question. Is the Redgard needed on top of the Durock if there is vapor barrier behind it?
Either/or, not both.
Bud Cline is online now   Reply With Quote
Old 12-01-2011, 07:40 AM   #15
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 25,850
Default

Gap between tub and durock (not lip)


The direction it's sitting does not matter, the screw heads need to be covered with thin set and the seams need webed tile tape over them set in thin set, sort of like when sheetrocking, Then seal the whole thing with Red Guard, Tile board is not water proof.

joecaption is online now   Reply With Quote
Reply

Tags
gap, tile, tub


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





Top of Page | View New Posts

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