R49 – R60 in 2×6 common rafter vaulted ceiling

I am looking for an insulation style to get me the required R-value in Zone 6. The current idea is to use something like a Rockwool system on the cold… I am looking for an insulation style to get me the required R-value in Zone 6. The current idea is to use something like a Rockwool system on the cold…Read MoreGreenBuildingAdvisor