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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 02-14-2012, 11:49 AM   #1
Newbie
 
Join Date: Oct 2011
Location: Georgia
Posts: 6
Rewards Points: 0
Share |
Default

Insulation after the fact


I am replacing the sheetrock of one my foundation walls in my basement and I noticed that there was no insulation between the studs, just a plastic vapor barior between the old sheet rock and the studs. In ordrer to isulate this properly without too much destruction, can I just insert 2' XPS foam in between the studs and be done with it. There is also about a 1/4 - 1/8" gap between the existing studs and the foundation wall. Can I just fill that with spray foam or is that needed? Thanks!

thedudeabides! is offline   Reply With Quote
Old 02-14-2012, 12:08 PM   #2
Member
 
Join Date: Dec 2008
Location: Fairbanks, AK
Posts: 1,847
Rewards Points: 0
Default

Insulation after the fact


I'd seal behind the studs w/ the foam to block convective loops behind them. Maybe it's not a big deal, but while you are there... Then push the xps against the wall. Also, foam any gaps in the xps-wood joints. S-can the vapor barrier below grade, unless you are in a really, really cold place.

jklingel is offline   Reply With Quote
Old 02-14-2012, 12:15 PM   #3
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 6,251
Rewards Points: 82
Default

Insulation after the fact


+1 to jklingel.

Gotta make sure it is airtight.

Are the studs against the wall?
Windows on Wash is online now   Reply With Quote
Old 02-14-2012, 12:34 PM   #4
Member
 
concretemasonry's Avatar
 
Join Date: Oct 2006
Location: Minneapolis/St. Paul, Minnesota - Latitude 45.057 Longitude -93.074
Posts: 3,756
Rewards Points: 14
Default

Insulation after the fact


What part of the world are you hiding in since you did not post your location and that could make suggestions mare accurate for you.

All too often, people from warmer climates overestimate the real conditions and needs since they do not really recognize the thermal inertia of the soil, concrete and the fact that they do not follow the exterior air temperatures and take more than a "blanket" (pun intended) suggestion for a specific location.

What is a really, really cold place? I have been in a cool/cold place (-10F to -40F minimums with highs of 5F for several weeks before) and went out and was able to drive a survey pin in the soil because there was only 4" of frost in the soil that had an early 8" snow cover. This is an example of the thermal inertia and storage of heat and thermal stability from the soil and reflects the variability of insulation needs, especially the vague and professionally admitted arbitrary concept of a "vapor barrier" that is not very exact, scientific and can be affected by a coat of paint. - It is great to talk and pontificate about, but how much difference does it really make?

Dick
concretemasonry is offline   Reply With Quote
Old 02-14-2012, 12:38 PM   #5
Newbie
 
Join Date: Oct 2011
Location: Georgia
Posts: 6
Rewards Points: 0
Default

Insulation after the fact


Thanks for the replies.

I live in Atlanta, GA.

The studs aren't touching the foundation wall, but the gap isn't big enough to slide any foam behind it. I was thinking spray foam could cover that if needed.
thedudeabides! is offline   Reply With Quote
Old 02-14-2012, 12:44 PM   #6
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 6,251
Rewards Points: 82
Default

Insulation after the fact


Don't need a vapor barrier down there and installation of one is largely incorrect.

I will help foster more mold growth than solve it.

Windows on Wash is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Which insulation? Photos attached of room homiefb Insulation 1 08-16-2011 05:44 AM
Garage Insulation yamster Insulation 0 07-01-2011 01:30 PM
Loose fill asbestos insulation, Vermiculite GeauxCajuns82 Building & Construction 2 03-07-2011 05:59 PM
Rafter Vents and Insulation nofx1981 Roofing/Siding 15 03-10-2010 08:14 PM
Has anyone used Green Fiber blown in insulation? pomelo Building & Construction 7 02-10-2010 07:17 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.