Hardibakcer Over Drywall - Drywall & Plaster - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Drywall & Plaster


Thread Tools Display Modes
Old 04-03-2009, 01:05 PM   #1
Join Date: Apr 2009
Posts: 1
Rewards Points: 10

Hardibakcer over Drywall

I just installed an acrylic tub in an alcove in a bathroom. I used 5/8 green board (mold resistand drywall) in the entire bathroom. Instead of doing what I should have and pushed the tub to one side while furring out the other wall, I center the tub in the alcove and the 5/8 fit perfectly behind the tub flange on each end. Now the tub flange sticks out 1/4" which presents a problem when tiling.

My quick fix idea is to install 1/4" Hardibacker over the top of the 5/8 green board bringing the hardi flush to the flange and and then tile over that to within 1/8 of the tub deck.

The Question .... If I install it over the drywall can I just use long screws and attach it per the normal screwing schedule or do I need to put some sort of mastic behind it to help support?


bejh is offline   Reply With Quote
Old 04-03-2009, 02:49 PM   #2
They're all fixer-uppers
J187's Avatar
Join Date: May 2006
Location: MA
Posts: 999
Rewards Points: 516

Hi, that tub flange needs to be screwed to something solid... the studs + any furring strips you need for a tight fit. The backer, whatever you choose, needs to go over the flange, not behind it. Is this just a tub? A tub and surround? A two piece remodeline tub/shower combo?

You also want to consider things like, any shower valves or other fixtures that might need to line up with your finish walls... for instance, if you've centered the tub in the alcove, you may now find out that a mixing valve, if you have one, will no longer line up with the new wall...


Last edited by J187; 04-03-2009 at 02:52 PM.
J187 is offline   Reply With Quote

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
Superior Walls - Floating Corners & Drywall Woodcutter Drywall & Plaster 16 04-22-2011 12:05 PM
Drywall ceiling: Water Damage, looking for advice dawho1 Building & Construction 11 09-13-2010 10:05 AM
Old ceiling replacement idsp General DIY Discussions 12 07-25-2009 10:48 AM
Good ways to run pegboard up to drywall? upthemaiden Drywall & Plaster 1 03-09-2009 01:12 PM
Framing and Drywall questions haysdb Building & Construction 5 11-04-2005 07:11 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1