Do I include the EIFS finish in my measure line in an exterior wall of a retail building? I would seem to be directed to by the word “architectural,” but the word “structural” would seem to imply I only measure to the exterior of the exterior sheathing.

Second, when I have a single course of concrete block at the base of an exterior wall, do I measure to the outside of that?

How wide does a glass storefront need to be to jog the measure line back to it, if the storefront goes down to grade?