Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-26-2011, 08:09 AM   #1
Member
 
Join Date: Jan 2011
Posts: 59
Share |
Default

Crawl space insulation questions


How much insulation is needed to insulate a 168 sq ft crawlspace floor above and what type is necessary for the job!!!

Gates is offline   Reply With Quote
Old 01-26-2011, 08:36 AM   #2
Member
 
Join Date: Jan 2011
Location: South Jersey
Posts: 160
Default

Crawl space insulation questions


Quote:
Originally Posted by Gates View Post
How insulation is needed to insulate a 168 sq ft crawlspace floor above an what type is necessary for the job!!!
Gates, do a search on youtube "Crawlspace Insulation" and you can find some good information from companies such as Owen Corning, Johns Manville, and some private contractors. I was recently looking into this and I believe they recommended R-19 which you can double check on Owens Corning website.

There is also the question of if it's a vented crawl space or not a vented crawl space. Main difference here I learned is a vented crawl space does not get the walls insulated (although mine are from the previous owner) while non-vented crawl spaces you can insulate the walls with foam boards, batts, etc...If you lay batts between the floor joists, paper side usually goes toward the warm part of the house which would be your floor.

cbaur88 is offline   Reply With Quote
Old 01-26-2011, 08:39 AM   #3
Wire Chewer
 
Red Squirrel's Avatar
 
Join Date: Jun 2009
Location: Ontario, Canada
Posts: 3,211
Default

Crawl space insulation questions


There's too many factors that can truely determine this. Idealy the more R value the better, BUT you also want an air seal. Just shoving a bunch of fiber glass is not going to do if it's a damp unconditioned crawlspace.

I'm getting a company to do expanding foam in a small crawlspace I have. It's conditioned space and is entirely concrete, even the ceiling. They'll be putting in 3" R18. Will provide air seal and thermal. Not cheap though.
Red Squirrel is offline   Reply With Quote
Old 01-26-2011, 08:57 AM   #4
Member
 
Join Date: Jan 2008
Location: N.C.
Posts: 418
Default

Crawl space insulation questions


Not just how much but also how it's installed. Here is some informative reading.

http://www.buildingscience.com/docum...archterm=floor insulation


http://www.buildingscience.com/docum...d%20in%20walls


http://www.buildingscience.com/docum...ance-and-codes
Earnie 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
Crawl space Insulation questions Tim Sommers Building & Construction 1 12-12-2010 11:27 PM
Water in crawl space after it rains and other questions about crawl space. dupaloop General DIY Discussions 1 04-13-2010 05:58 AM
crawl space insulation & faced batts akdiy Building & Construction 3 10-28-2009 06:50 AM
Crawl Space Insulation skinny2 Building & Construction 10 12-12-2008 11:36 AM
Crawl Space Insulation howard.wheaton Remodeling 4 11-10-2008 07:12 PM




Top of Page | View New Posts

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