Hanging Drywall Over Foam!!! - Drywall - Contractor Talk

Hanging Drywall Over Foam!!!

 
Thread Tools Search this Thread Display Modes
Old 11-09-2009, 07:29 PM   #1
Curmudgeon
 
neolitic's Avatar
 
Trade: carpentry/remodeling/"Yes M'am we do"
Join Date: Apr 2006
Location: Beech Grove, Indiana, Birthplace of the "King of Cool"
Posts: 11,706
Rewards Points: 2,000

Hanging Drywall Over Foam!!!


Some folks here seem to have
a burning desire to discuss this subject.
I'll start.
It makes window, doors, electrical boxes
a royal pain int he ass.
It's hard to get screws to recess properly.......


Here you go, discuss away.
Looking forward to at least as many
pages as the thread bitching about it.
__________________
Put your location in your profile!
(Sorry....it seems there really are dumb questions)
neolitic 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 11-09-2009, 07:46 PM   #2
Pro
 
knucklehead's Avatar
 
Trade: Extraordinary Carpenter
Join Date: Mar 2009
Location: Kansas City
Posts: 3,485
Rewards Points: 2,728

Re: Hanging Drywall Over Foam!!!


what kind of foam are you talking about?

Advertisement

knucklehead is offline  
Old 11-09-2009, 07:58 PM   #3
Curmudgeon
 
neolitic's Avatar
 
Trade: carpentry/remodeling/"Yes M'am we do"
Join Date: Apr 2006
Location: Beech Grove, Indiana, Birthplace of the "King of Cool"
Posts: 11,706
Rewards Points: 2,000

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by knucklehead View Post
what kind of foam are you talking about?
Whatever kind the guy in the now closed
invaluable thread was talking about.
Some kind of rigid pink boards applied
like sheathing on the interior, I suppose.
__________________
Put your location in your profile!
(Sorry....it seems there really are dumb questions)
neolitic is offline  
Sponsored Links
Advertisement
 
Old 11-09-2009, 08:01 PM   #4
Capra aegagrus

 
Tinstaafl's Avatar
 
Trade: Remodeler
Join Date: Jan 2008
Location: Central Pennsylvania
Posts: 23,398
Rewards Points: 76

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by neolitic View Post
Some folks here seem to have
a burning desire to discuss this subject.
What's to discuss? The very guy who made such a fuss over the thing being shut down already pointed out how absurd the idea is.

You tryin' ta start sumthin'?
Tinstaafl is offline  
Old 11-09-2009, 08:04 PM   #5
Pro
 
Mike Finley's Avatar
 
Trade: Bathroom Remodeling
Join Date: Apr 2004
Location: Littleton, Colorado
Posts: 14,078
Rewards Points: 2,000

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by knucklehead View Post
what kind of foam are you talking about?

Mike Finley is offline  
Old 11-09-2009, 08:05 PM   #6
Curmudgeon
 
neolitic's Avatar
 
Trade: carpentry/remodeling/"Yes M'am we do"
Join Date: Apr 2006
Location: Beech Grove, Indiana, Birthplace of the "King of Cool"
Posts: 11,706
Rewards Points: 2,000

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by Tinstaafl View Post
What's to discuss? The very guy who made such a fuss over the thing being shut down already pointed out how absurd the idea is.

You tryin' ta start sumthin'?
Shucks Ma'm,
just here to be of service.
__________________
Put your location in your profile!
(Sorry....it seems there really are dumb questions)
neolitic is offline  
The Following User Says Thank You to neolitic For This Useful Post:
Tinstaafl (11-09-2009)
Old 11-09-2009, 08:16 PM   #7
Project Manager
 
CookeCarpentry's Avatar
 
Trade: Project Manager
Join Date: Feb 2009
Posts: 2,642
Rewards Points: 2,016

Re: Hanging Drywall Over Foam!!!


Mike - I don't know what is more disturbing about that picture - the two guys in a foam bath or the guy in the leather vest, sailors cap with a glittery mask on...
CookeCarpentry is offline  
Old 11-09-2009, 08:26 PM   #8
KemoSabe
 
loneframer's Avatar
 
Trade: residential framing/siding/general carpentry
Join Date: Feb 2009
Location: Vineland, New Jersey
Posts: 14,233
Rewards Points: 12,218

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by Mike Finley View Post
You shouldn't put foam over warped studs.
__________________
__________________________________




"Walking the fine line between production and perfection"




__________________________________
loneframer is offline  
Old 11-09-2009, 08:30 PM   #9
Pro
 
rselectric1's Avatar
 
Trade: Licensed Electrical Contractor and Remodeler
Join Date: Sep 2009
Location: Chicago Suburbs
Posts: 11,813
Rewards Points: 896

Re: Hanging Drywall Over Foam!!!


__________________
220...221...whatever it takes!
rselectric1 is online now  
Old 11-09-2009, 09:03 PM   #10
Pro
 
genecarp's Avatar
 
Trade: LI,NY designer, new homes, renovation work, concre
Join Date: Mar 2008
Location: Long Island, NY
Posts: 5,425
Rewards Points: 2,000

Re: Hanging Drywall Over Foam!!!


2x4 framing bring it up to R-18, Did it in my own home, prior to sheetrock added 4x8sheets of 1/2" foil face rigid foam, Now if i was using my subs to bang out the sheetrock, it might have been a disaster, who wants to use longer screws and pay extra attention to pressing the boards in. I rocked with my own crew, and they did not complain a bit(maybe a little). I am telling you, the rooms are tight, we taped all the seams, i think the overall value is higher than R-18 given the lack of seams between the wall studs and the ins paper, the 1/2' board closes it all up. I also scored the kraft face to avoid condensation. I also set all boxes 1" deep, ext jams on windows, small price to pay for the extra R value. Gmod.
__________________
genecarp is offline  
The Following User Says Thank You to genecarp For This Useful Post:
Tom Struble (11-09-2009)
Old 11-09-2009, 09:53 PM   #11
Capra aegagrus

 
Tinstaafl's Avatar
 
Trade: Remodeler
Join Date: Jan 2008
Location: Central Pennsylvania
Posts: 23,398
Rewards Points: 76

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by genecarp View Post
I also scored the kraft face to avoid condensation.
Why wouldn't you just use unfaced batts to begin with? Or were you just using what was already there?

Okay, I'd be the last to say you can't do it, but would you seriously recommend the procedure as a standard technique? I've done a lot of things over the years that pros said couldn't/shouldn't be done, and gotten away with them. But that was for myself, on my own dime--and willing to deal with the consequences if it didn't work out.

On a competitively bid job for a paying customer, no way would I go that route.
Tinstaafl is offline  
Old 11-10-2009, 03:38 AM   #12
Pro
 
genecarp's Avatar
 
Trade: LI,NY designer, new homes, renovation work, concre
Join Date: Mar 2008
Location: Long Island, NY
Posts: 5,425
Rewards Points: 2,000

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by Tinstaafl View Post
Why wouldn't you just use unfaced batts to begin with? Or were you just using what was already there?

Okay, I'd be the last to say you can't do it, but would you seriously recommend the procedure as a standard technique? I've done a lot of things over the years that pros said couldn't/shouldn't be done, and gotten away with them. But that was for myself, on my own dime--and willing to deal with the consequences if it didn't work out.

On a competitively bid job for a paying customer, no way would I go that route.
Tested in my own home, jury is still out as to whether i would try it with a customer, the only concern i have is screw pops over time due to scew length and compression variable. As far as the unfaced, during the brainstorming i was talking to many different people, Ins and energy experts. my insulating company etc'', I was getting different takes on the vapor barrier, i installed kraft, then reconsidered, and simply scored the face. I have always used my own as lab for construction techniques in order to learn and push the limits. Some things i later applied in the field, some things i kept for myself, GMOD
__________________
genecarp is offline  
The Following 3 Users Say Thank You to genecarp For This Useful Post:
DavidC (11-10-2009), Tinstaafl (11-10-2009), Tom Struble (11-11-2009)
Old 11-10-2009, 07:43 AM   #13
Pro
 
mikeswoods's Avatar
 
Trade: interior remodeling
Join Date: Oct 2008
Location: Kane Co. Illinois
Posts: 2,716
Rewards Points: 2,664

Re: Hanging Drywall Over Foam!!!


I've sandwiched foam over existing drywall with fresh drywall on top.

No call backs-good sound deadening on 'party walls' in town houses.

Glad I didn't know it was supposed to be difficult,just another day.
mikeswoods is offline  
Old 11-10-2009, 09:32 AM   #14
Curmudgeon
 
neolitic's Avatar
 
Trade: carpentry/remodeling/"Yes M'am we do"
Join Date: Apr 2006
Location: Beech Grove, Indiana, Birthplace of the "King of Cool"
Posts: 11,706
Rewards Points: 2,000

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by mikeswoods View Post
I've sandwiched foam over existing drywall with fresh drywall on top.

No call backs-good sound deadening on 'party walls' in town houses.

Glad I didn't know it was supposed to be difficult,just another day.
SOT!
The original OP was dealing with
exterior walls.
Moving entry door jambs, extension
jambs and sills on windows, box extenders.......
__________________
Put your location in your profile!
(Sorry....it seems there really are dumb questions)
neolitic is offline  
Old 11-10-2009, 11:35 AM   #15
Designer/Contractor
 
Rio's Avatar
 
Trade: General Contractor
Join Date: Oct 2009
Location: San Diego city/County, Cali
Posts: 3,232
Rewards Points: 138

Re: Hanging Drywall Over Foam!!!


With higher insulation ratings being desired or required this is going to be an ongoing issue, not only with hanging drywall on the inside of structures but attaching exterior board surfaces with rigid foam on the outside of structures also. It hasn't come up yet in our designing but I know it will and have some concerns about it.

One of my concerns is that since foam really has no density to it is there going to be a problem with long term deflection due to gravity pulling down on the drywall which is being held by longer screws that aren't being fully supported when passing through the foam. Does anyone have any insight on this concern?

Thanks for any input.
Rio is offline  
Old 11-10-2009, 01:02 PM   #16
Pro
 
tccoggs's Avatar
 
Trade: Carpentry
Join Date: Dec 2008
Posts: 732
Rewards Points: 874

Re: Hanging Drywall Over Foam!!!


I have done this in my own house as well as others, typically on capes where there are sloped ceilings and kneewalls. Those kneewalls leak air like crazy and the thrermal break the foam provides vastly improves comfort and eliminates drafts. The 2 x 8 rafters you typically see on these home also can only support R-19 insulation if you want to maintain venting from the soffit to the attic, so the foam helps boost the r value. I have always used Tuff-R foil faced for this and unfaced fiberglass batts. 4 years in and no issues with screw pops in my own home.
tccoggs is offline  
Old 11-10-2009, 06:06 PM   #17
Pro
 
smeagol's Avatar
 
Trade: new construction and remodeling
Join Date: May 2008
Location: pierz (central) MN
Posts: 668
Rewards Points: 638

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by loneframer View Post
You shouldn't put foam over warped studs.

Funniest thing iv heard all day
smeagol is offline  
Old 11-11-2009, 09:05 AM   #18
Profit is not dirty.
 
AARC Drywall's Avatar
 
Trade: Residential Drywall and Taping
Join Date: May 2008
Location: Prince George BC Canada
Posts: 487
Rewards Points: 268

Re: Hanging Drywall Over Foam!!!


Quote:
Originally Posted by genecarp View Post
2x4 framing bring it up to R-18, Did it in my own home, prior to sheetrock added 4x8sheets of 1/2" foil face rigid foam, Now if i was using my subs to bang out the sheetrock, it might have been a disaster, who wants to use longer screws and pay extra attention to pressing the boards in. I rocked with my own crew, and they did not complain a bit(maybe a little). I am telling you, the rooms are tight, we taped all the seams, i think the overall value is higher than R-18 given the lack of seams between the wall studs and the ins paper, the 1/2' board closes it all up. I also scored the kraft face to avoid condensation. I also set all boxes 1" deep, ext jams on windows, small price to pay for the extra R value. Gmod.

The probelm with foam, is that no one wants to pay the extra to have the job done right....the extra time......and the pain in the ass factor.....it may be a great product, for the home owner, but here in pg, when we get foam block ext. walls in the basement, I add in 5cents a foot for the basement.
If the holding tabs are not lined up it is a real headache, and most times when we encounter foam ext. walls its a DYI contractor who knows very little about drywall and our needs.
__________________
Profit is NOT a dirty word....Cheap is....
AARC Drywall is offline  
Old 11-12-2009, 08:05 PM   #19
 
Man's Avatar
 
Join Date: Nov 2009
Posts: 2
Rewards Points: 10

Re: Hanging Drywall Over Foam!!!


Don't use screws, use liquid nails in excessive amounts. It works great.
Man is offline  
Old 11-12-2009, 08:40 PM   #20
Member
 
matt grisham's Avatar
 
Trade: acoustical dry wall
Join Date: Aug 2008
Posts: 89
Rewards Points: 75

Re: Hanging Drywall Over Foam!!!


you could use furring strip. insulation between. or in commercial work z furring

Advertisement

matt grisham 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
drywall hanging charges dont seem right bhrs Drywall 14 03-15-2010 04:43 AM
Drywall overtop foam board im4snow Drywall 2 11-08-2009 09:04 AM
Have any of you been following this Frankawitz Drywall 5 04-12-2009 08:47 PM
Any Of You Guys Use This Drywall? Ed the Roofer Drywall 12 03-02-2009 11:16 AM
Any tips on hanging drywall kanadaeh Drywall 0 11-17-2006 07:04 AM

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?