Rim joist insulation confusion
I am in the process of renovating my basement and will be adding insulation to the exterior walls.
This was a finished basement and very warm in winter. Problem though was on the main floor where we had frost build up due to poorly insulated rim joist cavity. Lots of frost when I took down the pink stuff and it wasn’t even that cold yet (-10 celcius).
Anyway, I am going to put back 2″ rigid board on the walls then frame with 2×4 and then batt inside there with a smart barrier on top of that.
My confusion is on the rim joist. Everything I have read has indicated put the rigid board against the rim joist and seal, then add batt to fill the cavity.
My confusion is from the NRCAN (Natural Resources Canada) website which shows the opposite, batt against the rim joist then a final piece of rigid board insulation against that then the drywall
So which one is it? Or do they both work?
I live in a climate with winter temps reaching as low as -35 degrees celcius (lucky me).
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