New build: thoughts on Exterior rigid foam applied on top of Advantech zip sheething and Tyvec drain screen?
We are partway through framing of our new house and I’ve been learning a ton about the importance of external continuous foam insulation
boards. The problem
is that my builder is half way through the framing and we’ve used Advantech zip sheething with Tyvec Drain Screen. Can I add a rock wool foam insulation board to the outside of the drain screen in between the drain screen and Hardie cladding? Also, do I need a rain screen air gap with furrings if I stick with Advantech zip plus Tyvec drain screen?
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