The Best way to Join a Nudura ICF wall top to a Zip Sheathing attic wall, Solo Builder

I could not find much info on the Web about how to continue the wall up to the roof after a Nudura ICF block stops at the living space ceiling height. This method is what I came up with: and it completely seals the entire roof to the ICF walls making an air and weather tight joint.
BaseCamp Barn Project Episode 27: Drying In Step One.