Foam Insulation - Building & Construction - DIY Chatroom Home Improvement Forum


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

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

Reply
 
Thread Tools Display Modes
Old 06-16-2009, 01:41 PM   #1
Newbie
 
Join Date: May 2009
Posts: 7
Rewards Points: 10
Default

Foam Insulation


Hi. I am building a new house as owner-builder. I'm interested in using foam insulation instead of that nasty pink fiberglass.
On searching the web I notice two basic types: Urethane and Soy.

Can anyone tell me the advantages/disadvantages of using foam as an insulation product, also which one it better, Urethane or Soy.

Any other information/gotchas would be welcome, such can mice/bugs burrow into it and nest there?
Thanks.

Advertisement

WynCntry is offline   Reply With Quote
Old 06-16-2009, 03:38 PM   #2
Newbie
 
Join Date: Jun 2009
Location: Calgary, AB
Posts: 11
Rewards Points: 10
Default

Foam Insulation


I'm no expert but I've been researching this as well for our new home. I've priced out a bunch...1/2lb open cell, 2lb closed cell (like Mike Holmes always uses), as well as the envirofoam (soy).

The 1/2lb is by far the cheapest but then adding in venting and vapor barriers plus labor it gets pretty close. To give you an idea our Cathedral roof is about 1800 sq feet and we have been quoted $7000 for the 1/2lb, and around $10 000 for the other two. The more you do, the cheaper it gets so we've added all joist ends, cantilevers, and basement walls for a total of around $14000. This is to an R40 equivelent everywhere except the basement R22.

When getting quotes be sure to have them specify the thickness, some will give you a quote per sq foot per inch, where our roof is to be 6 inches thick. I have some great links you might want to check out:

http://www.greenbuildingtalk.com/For...3/Default.aspx

http://www.buildingscience.com/index_html

I believe the soy is a good product but as far as being enviromentally friendly, the actual soy content is quite low and the reason rain forests are being clearcut for soy farming...but that's another topic.

Sean

Advertisement

sgo70 is offline   Reply With Quote
Old 06-17-2009, 11:57 AM   #3
Newbie
 
Join Date: Jun 2009
Posts: 6
Rewards Points: 10
Default

Foam Insulation


I purchased enough spray foam kits to completely do my 1350 square foot house, 3 inches in the walls, 2 inches on the basement walls. I did alot of research before buying anything. My take is that when they say "green", they are not saying the components of the foam are green, as much as they are saying the savings in heating/cooling costs will make your home "greener". You might assume otherwise. They're wording is usually vague.
hybrid guy 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
Spray foam insulation troyce1 Insulation 12 12-14-2014 07:30 AM
How To Install Rigid Foam Insulation on Concrete earthad1 Building & Construction 9 10-26-2010 10:49 AM
closed cell vs open cell foam insulation amonalisa Building & Construction 1 11-06-2008 10:39 PM
Venting foam board insulation mbscallen Building & Construction 5 02-15-2008 09:18 AM




Top of Page | View New Posts