BIG, It is different than stick framing. I like the concept. Looks like you have a very high 'R' value insulation with about 5- 1/2" of foam.
I do stick framing with 2x6 16" centers exterior walls and R-21 fiber-glas exterior wall insulation and R-38 fiber-glas ceiling with 6-12 pitch metal roof. I brick the outside of the entire exterior walls. I heat both floors with hot water radiant heat. We built my son's house that way, but with a very different roof.
grizz
I do stick framing with 2x6 16" centers exterior walls and R-21 fiber-glas exterior wall insulation and R-38 fiber-glas ceiling with 6-12 pitch metal roof. I brick the outside of the entire exterior walls. I heat both floors with hot water radiant heat. We built my son's house that way, but with a very different roof.
grizz