Zero-energy homes usually require a wall system with an insulating value of R-30 to R-40, at least in cold, heating-dominated climates. In Part 1 of this series, I suggested that you can’t go wrong with rigid insulation sheathing or with double-stud walls filled with fibrous insulation. While the double-stud approach does have advantages, it also… Continue reading High-R Walls, Part 2: Moisture Content
There has been a lot of talk lately about which wall assembly is better for achieving a truly high-performance wall, i.e., R-30 or better. The top contenders are exterior foam sheathing or off-set double-stud walls. They are both great, so you can’t go wrong. But for the sake of argument, let’s take a look at each.… Continue reading High-R Walls, Part 1: Wall Assembly
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