I actually count a couple of Archs. as friends, when I’m not working with them. The correct answer to the Arch’s. question is; no, I haven’t ever heard of those studs. Why don’t you dig up some tech. info. and detail on them, also their availability, and share it with me. “Share,” is the new friendlier, PC word for... You do the hard work and then give me the results, I don’t want to be bothered doing the leg work on your wild ideas. The Arch just didn’t use the share word for lazy, when he asked you to research his problem. But then, he probably thinks he’s the boss since he’s paying you that trimmed down fee, so he has more money to spend picking the brick color and that kinda critical stuff. Next thing ya know he’ll want you to share the redesign (your 2nd design) when he changes all the column locations; for the same fee, of course. It sounds like ExcelE has the right idea if the Arch. wants to start to provide a real thermal break. We’re seeing a lot of that in the upper mid west too.