Vapor Barrier Behind Hardi Backer? - Flooring - Contractor Talk

Vapor Barrier Behind Hardi Backer?

 
Thread Tools Search this Thread Display Modes
Old 06-11-2015, 02:59 PM   #1
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Vapor Barrier Behind Hardi Backer?


I'm doing a repair in a shower for a customer. The previous installer used a vapor barrier behind the Hardiebacker instead of a waterproof membrane behind the tile. If you screw the hardibacker to the studs won't that cause a leak around the screws? I've always used a membrane.
Isaacsycamore is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 06-11-2015, 03:03 PM   #2
Pro
 
ccoffer's Avatar
 
Join Date: Jan 2005
Posts: 810
Rewards Points: 1,140

Re: Vapor Barrier Behind Hardi Backer?


It's a shower, not a swimming pool. Aquabar is the best thing to use because it gives the condensation a place to hang out instead of it running like it does on plastic. It's tried and true, but building a dry shower is better for several reasons.

Advertisement

ccoffer is offline  
Old 06-11-2015, 03:18 PM   #3
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Re: Vapor Barrier Behind Hardi Backer?


Only asking because when I pulled the bottom row of tile the hardibacker was saturated.
Isaacsycamore is offline  
Sponsored Links
Advertisement
 
Old 06-11-2015, 09:37 PM   #4
Pro
 
ccoffer's Avatar
 
Join Date: Jan 2005
Posts: 810
Rewards Points: 1,140

Re: Vapor Barrier Behind Hardi Backer?


I'm guessing they used polyethylene. Is it a real shower or is it a receptor? Not that it matters. A dry shower is the better method.
ccoffer is offline  
Old 06-11-2015, 09:40 PM   #5
Pro
 
ccoffer's Avatar
 
Join Date: Jan 2005
Posts: 810
Rewards Points: 1,140

Re: Vapor Barrier Behind Hardi Backer?


Was it done with glue or thinset? If it was done with the glue from the red bucket, the failure at the bottom is totally normal.
ccoffer is offline  
Old 06-11-2015, 10:09 PM   #6
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Re: Vapor Barrier Behind Hardi Backer?


It was set with thinset. The pan I was told is a tile redi shower pan. The pan is also springing when you step on it. Seems to have let go from the adhesive they used to set it with.
Isaacsycamore is offline  
Old 06-12-2015, 10:50 PM   #7
Box Builder
 
Morning Wood's Avatar
 
Trade: Pretty much anything with wood and some metals
Join Date: Jan 2008
Location: Rockport, MA
Posts: 6,038
Rewards Points: 9,690

Re: Vapor Barrier Behind Hardi Backer?


Sounds gross.
Morning Wood is online now  
Old 06-13-2015, 01:10 AM   #8
Hair Splitter
 
TNTRenovate's Avatar
 
Trade: General
Join Date: Aug 2010
Location: Naperville, IL
Posts: 18,195
Rewards Points: 986

Re: Vapor Barrier Behind Hardi Backer?


Quote:
Originally Posted by Isaacsycamore View Post
It was set with thinset. The pan I was told is a tile redi shower pan. The pan is also springing when you step on it. Seems to have let go from the adhesive they used to set it with.
Sounds like someone stepped on it when the mud under the pan was setting.
__________________
Tried & True on Facebook
Tried & True Website
Quote:
Originally Posted by CarpenterSFO View Post
You ask for your money frequently, and you collect it quickly, else you stop working immediately.
TNTRenovate is offline  
The Following User Says Thank You to TNTRenovate For This Useful Post:
Isaacsycamore (06-13-2015)
Old 06-13-2015, 04:54 AM   #9
Pro
 
Big Shoe's Avatar
 
Trade: Carpentry,drywall,trim. Part time painter.
Join Date: Jun 2008
Location: Florida
Posts: 4,415
Rewards Points: 1,910

Re: Vapor Barrier Behind Hardi Backer?


Hung hundreds of showers if not thousands. Never once saw a vapor barrier. There was talk of 30lb. behind cement board 10yrs. back , but never saw that either. (Maybe a couple times.)

Hung Hardie backer once............but never again.
__________________
Expect the Unexpected
Big Shoe is offline  
The Following User Says Thank You to Big Shoe For This Useful Post:
Isaacsycamore (06-13-2015)
Old 06-13-2015, 08:17 AM   #10
Pro
 
MIKE ANTONETTI's Avatar
 
Trade: FLOORING CONTRACTOR
Join Date: Jul 2012
Location: CITRUS COUNTY
Posts: 1,751
Rewards Points: 3,514

Re: Vapor Barrier Behind Hardi Backer?


I turned down two shower installs the past week, one friend, one friend of friend, time involved/ vs. profit is too low for taking time from other projects.

I used to use visqueen and felt paper years back, then switched to redguard, I've got about 20 gallons of waterproofer on hand.

Something is better than nothing, wet hardibacker does not damage it like drywall, mud beds get wet as well, I call that functional.
MIKE ANTONETTI is offline  
Old 06-13-2015, 09:57 AM   #11
Pro
 
avenge's Avatar
 
Trade: Remodeling
Join Date: Sep 2008
Location: Not here
Posts: 3,027
Rewards Points: 590

Re: Vapor Barrier Behind Hardi Backer?


I used 6mil plastic behind all cement backer before membranes became readily available, that's the method that was supposed to be used.
avenge is offline  
Old 06-13-2015, 12:36 PM   #12
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Re: Vapor Barrier Behind Hardi Backer?


Wouldn't the vapor barrier need to drain into the pan and not stop at the subfloor like they have it? Could be a dumb question but like I said I've always used a membrane.
Isaacsycamore is offline  
Old 06-13-2015, 12:42 PM   #13
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Re: Vapor Barrier Behind Hardi Backer?


I forgot to mention this shower was installed less than a year ago.
Isaacsycamore is offline  
Old 06-13-2015, 12:53 PM   #14
House surgeon
 
illbuildit.dd's Avatar
 
Trade: building/remodeling
Join Date: Jan 2015
Location: ok
Posts: 2,389
Rewards Points: 2,078

Re: Vapor Barrier Behind Hardi Backer?


We're doing a shower now where they insisted on vapor barrier. Used 6mil I had laying around. It's weird because they act like they know everything there is to know about showers and construction. Weirdos
illbuildit.dd is offline  
Old 06-13-2015, 12:55 PM   #15
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Re: Vapor Barrier Behind Hardi Backer?


Don't you just love those kind of customers?
Isaacsycamore is offline  
Old 06-13-2015, 01:00 PM   #16
House surgeon
 
illbuildit.dd's Avatar
 
Trade: building/remodeling
Join Date: Jan 2015
Location: ok
Posts: 2,389
Rewards Points: 2,078

Re: Vapor Barrier Behind Hardi Backer?


Quote:
Originally Posted by Isaacsycamore View Post
Don't you just love those kind of customers?
These guys are the worst I've had in my whole career. No joke. And they had the nerve to ask me to remodel another room in the house. Not just no but NOOOO THANK YOU
illbuildit.dd is offline  
Old 06-13-2015, 06:05 PM   #17
Sean
 
SLSTech's Avatar
 
Trade: Principal / Owner
Join Date: Sep 2008
Location: Naperville, IL
Posts: 5,400
Rewards Points: 110

Re: Vapor Barrier Behind Hardi Backer?


Yes the plastic is in the wrong spot though some code officials insist on it - also a membrane or fluid applied should still be used making sure moisture goes back into the pan
__________________
SLS Construction & Building Solutions LLC Our Blog - The HTRC
SLSTech is offline  
The Following User Says Thank You to SLSTech For This Useful Post:
Isaacsycamore (06-13-2015)
Old 06-13-2015, 07:18 PM   #18
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Re: Vapor Barrier Behind Hardi Backer?


That's what I thought. Thanks
Isaacsycamore is offline  
Old 06-14-2015, 01:28 PM   #19
Pro
 
ccoffer's Avatar
 
Join Date: Jan 2005
Posts: 810
Rewards Points: 1,140

Re: Vapor Barrier Behind Hardi Backer?


Yes the plastic is in the wrong spot

WTF? Where should it be? On the roof? The method is as old as tile. You put paper or plastic over the studs and then make sure the bottom laps over the pan liner. It's pretty rudimentary stuff. This is described literally in detail in that mysterious thing called the TCA handbook and has been since before most of us were born.
ccoffer is offline  
The Following 6 Users Say Thank You to ccoffer For This Useful Post:
Big Shoe (06-15-2015), BlueRidgeGreen (06-14-2015), charimon (06-14-2015), EthanB (06-14-2015), Isaacsycamore (06-14-2015), PrecisionFloors (06-14-2015)
Old 06-14-2015, 02:17 PM   #20
Registered User
 
Isaacsycamore's Avatar
 
Trade: Flooring Contractor
Join Date: Jun 2015
Location: Northwest Indiana
Posts: 13
Rewards Points: 26

Re: Vapor Barrier Behind Hardi Backer?


Unfortunately my handbook walked off and my new one hasn't arrived yet. I appreciate all the feed back guys.

Advertisement

Isaacsycamore is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
When do you put screws in hardi backer? DuFast Tiling 13 02-16-2012 10:14 PM
Hardi Board Tile Backer wwkbob Flooring 8 03-15-2011 09:21 AM
coiled roofing nailer for hardi backer Mike Finley Tools & Equipment 40 03-03-2010 09:26 AM
Hardi panel Siding for tile backer? Slowtrawl Flooring 3 01-13-2010 02:24 PM
Moisture board, denshiel, hardi backer AARC Drywall Drywall 11 06-12-2008 11:11 PM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?