Adding Insulation On Top Of Drywall - Insulation - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Insulation

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 06-12-2011, 07:47 PM   #1
Newbie
 
Join Date: Jun 2011
Posts: 1
Rewards Points: 10
Default

adding insulation on top of drywall


We have a 2 X 4 stick built home. I am thinking of adding the thinnist highest r-value material on top of the drywall and then cover with T & G pine or other wall covering on the inside of all exterior walls. Is this possible or is their a problem with vapor barrier? or other ideas? I do not want to pull off my cedar siding and do added insulation on the outside and not sure if there is any way to blow in material since there is alread fiberglass insulation in the walls.

Thank you

Advertisement

terry hinkley is offline   Reply With Quote
Old 06-13-2011, 03:45 PM   #2
Mold!! Let's kill it!
 
Join Date: Feb 2008
Location: Central Pennsylvania
Posts: 2,849
Rewards Points: 2,012
Default

adding insulation on top of drywall


Generally, you don't want to add insulation to the warm side of a vapor barrier. That has the potential to change your vapor barrier temperature, perhaps lowering it to or below dew point. That could cause you big problems with condensation somewhere within the wall system. When people pose insulation questions, they really need to put their location in their profile. There are huge differences in insulation practices between Florida and Canada.

Advertisement

Maintenance 6 is offline   Reply With Quote
Old 06-14-2011, 05:55 PM   #3
Energy Saver
 
HomeInsulation's Avatar
 
Join Date: May 2011
Location: NJ
Posts: 61
Rewards Points: 75
Default

adding insulation on top of drywall


Hi Terry,

There's another reason you probably don't want to add foam board insulation over drywall and cover it with pine... It would be a fire hazard.

Foam board insulation needs to be covered with at least 1/2in of gypsum in most building codes.

I'd call a cellulose insulation contractor and ask them about dense packing cellulose from the outside. Fiberglass insulation is not very dense and their hoses can move right through it.

It's probably your least expensive option. But poured in place expanding foam can also be used in exterior walls with fiberglass insulation. It's usually 3 times the price per sq. ft.

If your home is uncomfortable or expensive to heat and cool, there's other options besides your walls that will make a huge difference at a lower cost.
__________________
Free How To Insulation Videos @ http://www.howtohomeinsulation.com
HomeInsulation is offline   Reply With Quote
Reply


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
Drywall over foamboard rim joist insulation Atskodinski Building & Construction 0 01-19-2011 11:03 PM
Adding Insulation to Kneewall shorteared General DIY Discussions 3 10-04-2010 07:41 PM
Adding Attic Insulation barneyrubble Building & Construction 2 08-23-2010 02:50 PM
Rafter Vents and Insulation nofx1981 Roofing/Siding 15 03-10-2010 09:14 PM
Adding insulation to the underside of a high ceiling churchlady Building & Construction 6 11-17-2009 08:02 PM




Top of Page | View New Posts