Insulating rim joists


Old 12-29-03, 05:16 PM
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Insulating rim joists

I just finished framing and drywalling in my basement per Doug's suggestions (2x4 1" from foundation, PT bottom plate, etc.). I am installing a dropped ceiling this week. One thing I forgot to do was insulate my rim joists prior to building my walls. Luckilly I can still access the rim joists on two of the exterior walls but one of the walls will make it almost impossible to insulate the rim joists. My question is; on the rim joists I can reach, what do you recommend using for insulation (kraft faced or foam)? And what about the rim joists on the wall that I cannot reach? Am I looking at possible condensation trouble down the road? I'm hoping that the airspace between the wall and the foundation (approx. 6") will provide enough circulation to help insulate and keep things dry. Thanks so much.
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Old 12-30-03, 05:17 PM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
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Lightbulb insulation

We use a R 19 paper to the room side. Cut it to fit tight up there in the joist on the sill plate. I guess do what you can now is all .On the rest of the home it will just be a heat loss. ED

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