Most twin cities area apartments are now framed with 2x8 to meet current energy code. I would honest...

1. Comment on Balancing embodied & operating carbon – wall
assembly by CreativeDestruction
Most twin cities area apartments are now framed with 2x8 to meet current energy code. I would
honestly steer you more toward that than your 2 options simply because it's familiar to all trades,
commercial subs will get it more airtight than SIPs, it's probably similar in overall U factor to the
Tstud assembly, and you'll get better pricing that can be invested elsewhere on the project.Of
course, I'm shooting from the hip and haven't done the exact math. Take with a grain of salt. 2x8 @
24" O.C. dense packed is not too shabby if continuous exterior insulation isn't in the cards.Best,jEdit:
definitely use plywood and/or paperless gypsum sheathing on the exterior if you go this route.