Zip R12 with Class III Vapor Retarder in Portland, ME Zone 6

Hey folks,For our house in Portland ME, Zone 6, here is the wall assembly we are planning:Cedar Clapboard Siding (unfinished)Vertical Rainscreen Zip R12R23 Rockwool in 2×6 cavitySheetrock with latex paintWe… Hey folks,For our house in Portland ME, Zone 6, here is the wall assembly we are planning:Cedar Clapboard Siding (unfinished)Vertical Rainscreen Zip R12R23 Rockwool in 2×6 cavitySheetrock with latex paintWe…Read MoreGreenBuildingAdvisor