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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-04-2009, 09:42 AM   #1
Member
 
Join Date: Aug 2008
Location: Northern Michigan
Posts: 36
Rewards Points: 25
Default

Crawlspace insulation


I've been doing a little research on insulating crawlspaces and want to get your opinions. I have an unvented crawlspace about 3.5' high. It has plastic on the floors, and two 1" pieces of rigid foam insulation along the perimeter walls, which looks to have a lot of gaps and poor seals. I don't seem to have any moisture problems, but there is always a faint musty smell. There are water pipes running through it, and the one to the outside hose cracked last year. The room above it is always colder than the rest of the house. I was thinking about putting fiberglass insulation along the walls to keep the heat in better. Would it be ok to put the fiberglass right against the rigid foam? Or would it be best to remove the rigid foam and then apply the fiberglass insulation?

ekulrenlig is offline   Reply With Quote
Old 10-04-2009, 10:07 AM   #2
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,621
Rewards Points: 2,380
Default

Crawlspace insulation


I think fibreglass insulation is not allowed by code in crawlspaces (where I am). They only allow closed cell blue or pink fibreglass board and nowadays it has to be coated or the type that does not give off fumes in a fire. Fibreglass will always absorb moisture and get soaked and useless. All it takes is one small hole in a vapor barrier or board joint to let moisture in to it. The best type is probably that Icynene sprayed on type as it seals all openings 100%. Best to get a pro to spray it on as it can be incredibly messy if you get it on yourself.

http://www.icynene.com/


Last edited by yuri; 10-04-2009 at 10:10 AM.
yuri is offline   Reply With Quote
Old 10-05-2009, 05:30 AM   #3
Member
 
Join Date: Aug 2008
Location: Northern Michigan
Posts: 36
Rewards Points: 25
Default

Crawlspace insulation


Anyone know what code says about this in Michigan?
ekulrenlig 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
Cape Cod Style House Attic/Crawl Space Insulation Help Danielg Insulation 24 05-21-2012 08:20 AM
How To Install Rigid Foam Insulation on Concrete earthad1 Building & Construction 9 10-26-2010 09:49 AM
crawlspace insulation md9693 General DIY Discussions 5 01-22-2009 10:30 PM
Crawlspace insulation reccomendation Gus Building & Construction 3 12-29-2007 11:23 AM
crawlspace exposed to outside and damp djbauda Building & Construction 5 07-30-2007 07:49 AM




Top of Page | View New Posts

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