Thank you for visiting The Floor Pro Community.
Register for FREE for even more features.    
The Floor Pro Community

Go Back   The Floor Pro Community » Public Forums for the PRO, Do-It-Yourselfer & Consumer » Ceramic and Stone Q&A


Backer board and tub flange issue



"Backer board and tub flange issue," in the Ceramic and Stone Q&A forum, begins: "I do have one other question on a slightly different topic if anyone could help. I just installed the tub ..."

Reply
 
LinkBack Topic Tools
Old August 16, 2010, 05:05 PM   #1
xoffers
One of the Irregulars
 
Join Date: Aug 2010
Location: Central Vermont
Posts: 12

Backer board and tub flange issue


I do have one other question on a slightly different topic if anyone could help.

I just installed the tub ( kohler archer) and the instructions have you install a 1/4" block over the nailing flange at each stud so the backer board sits flush with the outside of the tub flange.

This is causing my backer board to be pitched out at the bottom and makes if impossible to have square angles for tiling. So I was thinking of adding 1/4" shims all the way up the studs so the backer is square. Yes/ No?

TFP recommends cooking.com
xoffers is offline   Reply With Quote
Old August 16, 2010, 05:08 PM   #2
hookknife
Hard Surface Installer
charter member badge
 
hookknife's Avatar
 
Join Date: May 2006
Location: Idaho
Posts: 2,694

If that keeps it flush, then i would say yes.

hookknife is offline   Reply With Quote
Old August 16, 2010, 05:10 PM   #3
stullis
Flooring Professional
Senior Member of TFP
charter member badge
 
stullis's Avatar
 
Join Date: Jun 2006
Location: Sauk Centre, Minnesota
Posts: 4,290

Is shimming going to cause problems elsewhere?

Following plumbers directions = :crazy:

Notch your studs instead of adding 1/4"


Last edited by stullis; August 16, 2010 at 05:18 PM.
stullis is offline   Reply With Quote
Old August 16, 2010, 05:13 PM   #4
Barry Carlton
Flooring Professional
Senior Member of TFP
author badge
 
Barry Carlton's Avatar
 
Join Date: Sep 2007
Location: Boise, Idaho
Posts: 7,614
Send a message via Skype™ to Barry Carlton

stullis said View Post
Is shimming going to cause problems elsewhere?

Following plumbers directions = :crazy:

Notch your studs instead of adding 1/4"
Such as where the backer meets the existing sheetrock?

Barry Carlton is offline   Reply With Quote
Old August 16, 2010, 05:19 PM   #5
hookknife
Hard Surface Installer
charter member badge
 
hookknife's Avatar
 
Join Date: May 2006
Location: Idaho
Posts: 2,694

Maybe I am misunderstanding??? are you trying to "fir out" the studs to keep the flange slightly recessed so the tile will be plumb???or is the flange already recessed???

hookknife is offline   Reply With Quote
Old August 16, 2010, 05:19 PM   #6
stullis
Flooring Professional
Senior Member of TFP
charter member badge
 
stullis's Avatar
 
Join Date: Jun 2006
Location: Sauk Centre, Minnesota
Posts: 4,290

You got it Barry.

stullis is offline   Reply With Quote
Old August 18, 2010, 06:24 AM   #7
xoffers
One of the Irregulars
 
Join Date: Aug 2010
Location: Central Vermont
Posts: 12

hookknife said View Post
Maybe I am misunderstanding??? are you trying to "fir out" the studs to keep the flange slightly recessed so the tile will be plumb???or is the flange already recessed???
sorry for late replay, my post got moved. The directions for the Kohler tub have you put 1/4" thick 1.5X4 strips on each stud above the nailing flange of the tub which is about 1/4" thick, this will allow the backer board to sit flush against the tub flange. Problem I'm facing is that the rock board is pitched out at the bottom because of the wood strips, especially where 2 corners meet . This ruins all the square angles for tiling and just looks wrong. I've already found some issues with kohler installation directions so I shimmed all the way up the wall with 1/4" strips every 2'.

right/wrong?

xoffers is offline   Reply With Quote
Old August 18, 2010, 08:25 AM   #8
hookknife
Hard Surface Installer
charter member badge
 
hookknife's Avatar
 
Join Date: May 2006
Location: Idaho
Posts: 2,694

xoffers said View Post
sorry for late replay, my post got moved. The directions for the Kohler tub have you put 1/4" thick 1.5X4 strips on each stud above the nailing flange of the tub which is about 1/4" thick, this will allow the backer board to sit flush against the tub flange. Problem I'm facing is that the rock board is pitched out at the bottom because of the wood strips, especially where 2 corners meet . This ruins all the square angles for tiling and just looks wrong. I've already found some issues with kohler installation directions so I shimmed all the way up the wall with 1/4" strips every 2'.

right/wrong?
That sounds like something is haywire for sure. you definitely want things straight and plumb and flush before you tile. How is the board everywhere else? Give us a couple of pics, so we can give more accurate help.

hookknife is offline   Reply With Quote
Old August 18, 2010, 12:18 PM   #9
Kman
Tile Expert
TFP supporter badge
author badge
 
Kman's Avatar
 
Join Date: Mar 2008
Location: NW Arkansas
Posts: 2,927

From what I'm reading, the flange itself is roughly 1/4" thick, and the instructions are advising you to add 1/4" strips to the studs so that when the CBU is installed, the back side of the CBU will come down over the face of the tub flange.

The only potential problem with that is on your two end walls, the entire wall of the bathroom has to be addressed, not just the part that's inside the tub area. You can always taper it down gradually outside the tub area to minimize that "speed bump".

I had this same problem in my own bathroom where the walls were framed a little too wide for the tub. I added strips and everything turned out okay. Preparation for Tiling a Shower or Tub Surround | Welcome to Trevathan Floorcovering

Kman is offline   Reply With Quote
Old August 18, 2010, 04:10 PM   #10
xoffers
One of the Irregulars
 
Join Date: Aug 2010
Location: Central Vermont
Posts: 12

Kman said View Post
From what I'm reading, the flange itself is roughly 1/4" thick, and the instructions are advising you to add 1/4" strips to the studs so that when the CBU is installed, the back side of the CBU will come down over the face of the tub flange.

The only potential problem with that is on your two end walls, the entire wall of the bathroom has to be addressed, not just the part that's inside the tub area. You can always taper it down gradually outside the tub area to minimize that "speed bump".

I had this same problem in my own bathroom where the walls were framed a little too wide for the tub. I added strips and everything turned out okay. Preparation for Tiling a Shower or Tub Surround | Welcome to Trevathan Floorcovering
Kman, found your website after I posted this, excellent job! I ended up doing the exact same thing and it came out nice. Kohler install directions are horrible. Measurements that are supposed to be 2 1/8 got converted to 2 7/8
for cutting drain pipes among others. Thanks for the help

xoffers is offline   Reply With Quote
Old August 18, 2010, 05:25 PM   #11
hookknife
Hard Surface Installer
charter member badge
 
hookknife's Avatar
 
Join Date: May 2006
Location: Idaho
Posts: 2,694

Kman to the rescue

hookknife is offline   Reply With Quote
Reply


Go Back   The Floor Pro Community » Public Forums for the PRO, Do-It-Yourselfer & Consumer » Ceramic and Stone Q&A
go to previous or next topic in this forum
« proper order of steps before laying tile? | Self leveling Question »

Topic Tools


Similar Topics to Backer board and tub flange issue
Topic Topic Starter Forum Replies Last Post
Sealing Hardi backer and glass block window TJfive0 Ceramic and Stone Q&A 11 July 26, 2010 04:17 PM
flexitec issue Don Monfils Vinyl & Rubber Flooring Sales and Installations 7 March 15, 2010 09:37 PM
Adding a backer to sewn seams Lo Down Carpet Q&A 6 February 24, 2010 10:24 PM
moisture issue Jeff Needham Flooring Inspection Services 10 January 26, 2008 09:25 AM
no thinset under backer board DJ Ceramic and Stone Q&A 11 August 22, 2007 12:44 PM

collapse Log in
User Name:

Password:

Not a member yet?
Register Now!
support TFP

Specialty Equipment Rentals
Visit us on facebook
JonnyCorners

1800Flowers.com

All times are GMT -7. The time now is 04:45 PM.

Home   About   Contact   TOS   Privacy   Website Map  

Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd. | All Site Content 2006-2014 TheFloorPro.com