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-   -   Insulating Rim Joist Question (http://www.houserepairtalk.com/f106/insulating-rim-joist-question-17330/)

Great_North 02-08-2014 06:53 PM

Insulating Rim Joist Question
 
3 Attachment(s)
I have a question about insulating the rim joist in my basement ceiling. House is only 8 years old and we’re plugging away on finishing the basement and are at the ceiling now. I plan on just adding fiberglass rolls/batts between the joists and have had non-faced fiberglass in the rim area (see photos) since new without any issues. Before I do anything else, I want to know if fiberglass in the rim area is sufficient or is there a better way? I’m thinking spray foam would be better but cost is a factor as always. I just want to do this once and don’t want to have to worry about it again 5, 10, 20 years down the road so I want to make sure I do it right. Foundation walls are poured and we live in the northern Midwest and have very cold winters, below zero air temps are very common.

Also in using the fiberglass rolls/batts between the joists I’m assuming unfaced friction fit would be fine? Or would I want kraft faced?

Thanks for any help or feedback!

Great_North 02-08-2014 06:53 PM

Insulating Rim Joist Question
 
3 Attachment(s)
I have a question about insulating the rim joist in my basement ceiling. House is only 8 years old and we’re plugging away on finishing the basement and are at the ceiling now. I plan on just adding fiberglass rolls/batts between the joists and have had non-faced fiberglass in the rim area (see photos) since new without any issues. Before I do anything else, I want to know if fiberglass in the rim area is sufficient or is there a better way? I’m thinking spray foam would be better but cost is a factor as always. I just want to do this once and don’t want to have to worry about it again 5, 10, 20 years down the road so I want to make sure I do it right. Foundation walls are poured and we live in the northern Midwest and have very cold winters, below zero air temps are very common.

Also in using the fiberglass rolls/batts between the joists I’m assuming unfaced friction fit would be fine? Or would I want kraft faced?

Thanks for any help or feedback!

Great_North 02-08-2014 06:53 PM

Insulating Rim Joist Question
 
3 Attachment(s)
I have a question about insulating the rim joist in my basement ceiling. House is only 8 years old and we’re plugging away on finishing the basement and are at the ceiling now. I plan on just adding fiberglass rolls/batts between the joists and have had non-faced fiberglass in the rim area (see photos) since new without any issues. Before I do anything else, I want to know if fiberglass in the rim area is sufficient or is there a better way? I’m thinking spray foam would be better but cost is a factor as always. I just want to do this once and don’t want to have to worry about it again 5, 10, 20 years down the road so I want to make sure I do it right. Foundation walls are poured and we live in the northern Midwest and have very cold winters, below zero air temps are very common.

Also in using the fiberglass rolls/batts between the joists I’m assuming unfaced friction fit would be fine? Or would I want kraft faced?

Thanks for any help or feedback!


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