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 11-04-2011, 06:33 PM   #1
Newbie
 
Join Date: Oct 2011
Location: Columbus Oh
Posts: 17
Share |
Default

Rim joist insulation suprise


While insulating my rim joists with 2" XSP i found this little gem, where part of my home extends past the foundation. No surprise this is also one of the coldest portion of flooring....

How do i go about tackling this void? It extends way beyond arms reach.
Attached Thumbnails
Rim joist insulation suprise-photo-2-.jpg  

rjwrightohio is offline   Reply With Quote
Old 11-04-2011, 07:55 PM   #2
I can tie my own shoes
 
algored2deth's Avatar
 
Join Date: Jan 2011
Location: Rochester, NY
Posts: 111
Default

Rim joist insulation suprise


Vacuum out all the loose material. Get yourself a can of spray foam. Find some clear tubing that fits over the spray foam stray that fits fairly snug. You might also need a guide wire, like an old hanger or similar. Tape the wire to the tube, connect the straw of spray foam to the tube, stick it in the hole and then spray and seal it up. Beforehand, you could also try and cut a piece of XPS and see if you can fit and spray foam it in. this is what I would do.

algored2deth is offline   Reply With Quote
Old 11-04-2011, 08:12 PM   #3
Registered User
 
Join Date: Mar 2009
Posts: 9,968
Default

Rim joist insulation suprise


That will work. If the soffit is easily replaced/re-installed, add rigid foam board to the joist bottoms also: http://www.buildingscience.com/docum...n-crawlspaces/
otherwise you will only be getting R-value of 1.25 per inch of solid wood-- 9" joist= R-11, plus the thermal break.

Gary
__________________
If any ads are present in my answer above, I do not condone/support/use the product or services listed, they are there against my permission.
Gary in WA is offline   Reply With Quote
Old 11-05-2011, 09:54 PM   #4
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 5,969
Default

Rim joist insulation suprise


Seal and insulated that entire cavity.

Do you have access to a 2-part spray foam kit?
Windows on Wash is offline   Reply With Quote
Old 11-06-2011, 09:58 AM   #5
Newbie
 
Join Date: Oct 2011
Location: Columbus Oh
Posts: 17
Default

Rim joist insulation suprise


Gary, fantastic link.. Once it warms up later this afternoon i plan to crawl under there and see what sort of access i have.


I do not presently have access to a two part foam solution. Your suggesting filling the entire void solid with spray foam?
rjwrightohio is offline   Reply With Quote
Old 11-06-2011, 10:56 AM   #6
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 5,969
Default

Rim joist insulation suprise


If you had it, yes. That would be the easiest application as it is not that deep or big of a void to fill.

Windows on Wash is offline   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
insulation of rim joist sherryne Building & Construction 1 01-04-2011 12:12 PM
Floor joist insulation Arky217 Building & Construction 0 12-29-2010 11:56 AM
Adding insulation and storage to Cape Cod Side Attic turin39789 General DIY Discussions 5 11-08-2010 10:50 AM
Rim Joist Insulation ja191992stg Building & Construction 53 03-22-2010 08:41 PM
Space between joist and beam on deck schveiguy Building & Construction 11 09-08-2009 09:15 AM




Top of Page | View New Posts

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