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Old 09-16-2012, 04:37 PM   #1
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rim joist insulation

is the builder of my house required by code to insulate my rim joists


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Old 09-16-2012, 09:35 PM   #2
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You did not add where you live in your profile.
It's always best to give your local code office a call with a question like this.
It's not required in my area.


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Old 09-16-2012, 10:58 PM   #3
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If in the U.S. you probably are required to air seal AND insulate the rims. The "I" Codes require it; eg. #11; http://publicecodes.cyberregs.com/ic...002_par021.htm

5th down; http://publicecodes.cyberregs.com/ic...002_par022.htm

Even Joe's State requires it; IECC 2009; http://www.reedconstructiondata.com/...odes/virginia/

#11 again: http://publicecodes.cyberregs.com/ic...9_4_par025.htm

5th down again: http://publicecodes.cyberregs.com/ic...9_4_par026.htm
Either caulking or canned foam to air seal, wall (usually) thickness insulation on rim. Always check with local AHJ.

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