We are planning to have our basement finished. We are in climate zone 6 (Toronto, Canada). After reading various sites, for basement insulation, we are leaning towards 2″ rigid board (XPS or EPS). Framing against the board, fill cavities with mineral wool batts and then drywall. Couple of questions
1. Do we leave space (say 1/2″) between the board and framing?
2. Do you prefer EPS over XPS
3. Do we need vapour barrier between the drywall and batt insulation?
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