Modern Self-build: ICCF vs ICF vs Double Walls?

Modern design self build in the mountains of Colorado. Exterior walls from ICCF (Perfect Block, etc.), ICF (Nudura, Build Block, Element, Amvic, etc.) or Double Walls? Our choice and reasoning in this episode as we start our build. Audio Credits: Mad Scientist = Music by Gordon Crumb - Mad Scientist - https://thmatc.co/?l=F00E8F45