Cement Board To Raise Kerdi Pan? - Kitchen & Bath Remodeling - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Remodeling > Kitchen & Bath Remodeling


Thread Tools
Display Modes
Old 08-16-2012, 04:29 PM   #1
Don't panic
Join Date: Dec 2011
Location: NYC 'burb
Posts: 5
Rewards Points: 12

Cement board to raise kerdi pan?

Hey Gang,

I'm an advanced D-I-Y guy renovating a 5' x 7' "kids" bathroom.

I demolished the old bathroom. Jacked up and repaired cut floor joists with an LVL beam. I demolished the rusted galvanized steel and cast iron D-W-V lines and stack from the roof to the basement. I installed new D-W-V PVC from the basement to the roof. I set the shower stall rough in to fit the Schluter Kerdi 32" x 60" shower kit with the 10" drain offset.

Ran a new sub-panel up to the second floor to provide GFCI lines for both master and kids bathrooms (lights, outlets, radiant floor heat) as well as new and more lines for the second floor.

New Viega PEX 3/4" lines for both the new bathroom and the old "Master" bathroom (to be renovated in the future.)

All walls furred and shimmed out to flat and plumg(nightmare), exterior wall insulated heavily, floor joists were sister-ed and leveled to approximately 1/32" of accuracy. All the perimeters were blocked to support the plywood edges and extra homemade OSB beams were glued and screwed, then installed under the toilet and sink positions for support. This all took some time as there was lots of sag and plans kept changing.

Ran all new electrical with roughs for the radiant floor heat.

Cut a hole in the ceiling for a good quality Fan/Light/Nightlight unit. Cut a hole in the roof to vent it with a best quality flapper valve.

Then I put down the 3/4" OSB subfloor and green boarded the walls.

As stated I will use the Schluter Kerdi 32" x 60" kit as the foam pan's drain placement was allowed due to my unique framing situation.

I also knew that I would have to platform the shower stall pan 1.5" from the OSB subfloor, as I need this to allow sufficient space for an adequate drain line pitch, and space between th P-Trap and Kerdi drain flange tail.

I have three sheets of .5" Durock Next-Gen and plan to cut, fit then stack and screw them into the shower stall area. Is this a good idea? Should I instead just get another sheet of 3/4" OSB and cut two sheets to fit?

Any thoughts appreciated.

RandallNY is offline   Reply With Quote
Sponsored Links
Old 08-19-2012, 10:40 AM   #2
In a little over my head
Join Date: Jan 2011
Location: Atlanta, GA
Posts: 840
Rewards Points: 710

I'm surprised you've gotten no replies on this. It sounds OK to me, but I think you'd need thinset between the layers of Durock. I don't think screw threads will hold reliably in the CBU.
ratherbefishing is offline   Reply With Quote
Sponsored Links

Thread Tools
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
bathtub vs. cement board for tile amakarevic Flooring 6 11-14-2011 06:46 PM
Cement board meets drywall? CowboyAndy Drywall & Plaster 8 12-25-2010 08:29 PM
Correct detail of preformed shower pan meet the cement board of a shower wall eyeglass Building & Construction 0 08-31-2010 02:31 PM
cement board install billyg Flooring 2 07-10-2009 12:52 PM
cement board over brick fireplace wawrow General DIY Discussions 2 11-21-2008 09:21 AM

Top of Page | View New Posts