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 07-14-2010, 10:03 PM   #1
Newbie
 
Join Date: Jul 2010
Posts: 4
Rewards Points: 0
Share |
Default

Basement wall insulation


Hey everyone,

I'm in the planning stages of finishing my basement. The house is relatively new, and like many other new houses around here, the basement was left unfinished (but studded and insulated) by the builders to keep prices lower for first time homebuyers. I'm stuck on the insulation issue.

My basement walls have two sections. The bottom part is concrete, only about 4 feet or so is underground, and the top is wood. The two sections are separated by a sill that comes about 4 inches in, so it'll be easy to use two different methods of insulation on these sections. I'm fine with using the fiberglass insulation and vapor barrier technique on the top section because it's made of the same material as the upstairs. However, I've been reading lately about using the old fiberglass and vapor barrier technique against concrete basement walls, and how it's not recommended anymore, being a recipe for mold. What would be my best option for the bottom section then? As I said, these walls are already studded, so putting something between the studs and concrete isn't really an option. Thanks for your help!

dandw12786 is offline   Reply With Quote
Old 07-15-2010, 06:12 AM   #2
Newbie
 
Join Date: Jul 2010
Posts: 5
Rewards Points: 0
Default

Basement wall insulation


you could always look into spray foam, it's a little more pricey than fiberglass but it does have it's benifits as well. Just a thought

joe.shrigley is offline   Reply With Quote
Old 07-15-2010, 11:14 AM   #3
Newbie
 
Join Date: Jun 2010
Posts: 20
Rewards Points: 0
Default

Basement wall insulation


Having just lived through a severe mold issue from fiberglass and a walkout basement, spray foam is an excellent answer. Here, it is roughly 2x the material cost of XPS, but is well worth it. My builder framed the wall tight to the block with 2x4. I removed all the 2x4 and replaced them with 2x3 to give a 1" gap that the foam would create a thermal break. He also filled my rim joist boxes with open cell foam. No more mold.
behrend is offline   Reply With Quote
Old 07-15-2010, 12:37 PM   #4
Member
 
Join Date: May 2010
Location: Canada, BC
Posts: 110
Rewards Points: 0
Default

Basement wall insulation


This document can help a lot in understant what to do and why to do it as far as basement insulation goes

http://www.buildingscience.com/docum...-basements.pdf
Troglodyte is offline   Reply With Quote
Old 07-15-2010, 01:11 PM   #5
Newbie
 
Join Date: Jul 2010
Posts: 3
Rewards Points: 0
Default

Basement wall insulation


Another option is a rigid foam insulation, it is sold in 4' x 8' sheets or 16" x 8' sheets and you can get it up to 2" thick.
Leelumberchgo 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
Basement Insulation raulakh Building & Construction 2 10-13-2009 12:36 AM
Basement Wall Mortar rory535 Building & Construction 16 08-06-2009 09:39 AM
basement insulation advise needed bmartin5150 Building & Construction 1 04-27-2009 04:56 PM
basement insulation question benp Building & Construction 2 03-24-2008 10:46 AM
Atlantic-need your opinion on markd's comments about my vapor barrier? yummy mummy Building & Construction 11 03-07-2007 09:47 AM




Top of Page | View New Posts

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