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

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


Thread Tools Display Modes
Old 10-11-2009, 03:47 AM   #1
Join Date: Sep 2009
Posts: 24
Rewards Points: 10

Basement Insulation

Hello Everyone,

I am installing the insulation roxul (R-14) into 2by4 studs in my basement walls.
I kept my frames 1.5 inch away from the basement concrete walls. I didn't removed the insulation done by my builder which covers only half the height of the concrete walls dropping from ceiling, instead I left it behind the studs alongwith vapour barrier done by builder.

Now when I am installing the insulation I always have a 1 inch or more empty space left after applying insulation specially lower part of the wall which was not insulated by the builder. In upper part there is no problem because the empty space behind the studs is occupied by previous insulation by the builder.
What Should I do. If I am applying 2nd layer it looks little tight and comes out from studs. Or Is it a good idea to decrease the thicness of second layer according to the space left in studs. I am just worried If I applied the vapour barrier on the empty space, the air left inside the studs may hurt my insulation in future.
Sorry for lengthy question.

Hamilton, Canada


raulakh is offline   Reply With Quote
Old 10-12-2009, 07:55 AM   #2
ccarlisle's Avatar
Join Date: Jul 2008
Location: Montreal, Quebec, Canada
Posts: 1,889
Rewards Points: 1,000

Personally, I like starting with a clean slate and by that I mean I like taking everything off before I put my work back onto a basement wall. I don't know what your builder put on the wall, maybe something like 1" of polystyrene, but in any case, the old vapour barrier has to come off - you can't have 2 vbs down there.

In your shoes, I would remove the old stuff, put my straight and true stud wall an inch or so away from the concrete wall, put down a roll of 4" wide foam underneath the bottom plate, use the Roxul to fill in the void completely, then staple a 6mil plastic vb, well taped and sealed with acoustic sealant, right from the bottom plate to the top, not forgetting the spaces between the upper joists. Then cover that with 1/2" drywall...

Remember up here we're in the 'freezing zones' and what we need up here is quite different than what others need in other zones.


“The average American woman is about 25 pounds heavier than she was in 1960...Recognizing obesity as a disease will help change the way the medical community tackles this complex issue that affects approximately 1 in 3 Americans,”
ccarlisle is offline   Reply With Quote
Old 10-13-2009, 12:36 AM   #3
Join Date: Sep 2009
Posts: 24
Rewards Points: 10

Thank-you CCarlisle
raulakh is offline   Reply With Quote

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
Cape Cod Style House Attic/Crawl Space Insulation Help Danielg Insulation 24 05-21-2012 08:20 AM
Basement Finishing Question (insulation) JFParker Building & Construction 3 05-27-2008 08:58 AM
Some Basement Insulation Questions atilla137 Building & Construction 6 10-16-2006 11:57 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1