I am building a log home which requires the Gable ends to be stick framed. This is unique in that it is an exterior wall but it is not structural. My idea is this. 2×4 walls, with 1 or 2″ of eps foam screwed to the extrior. Then horizontal furring strips, creating a rain screen, with board and batten siding on the exterior. From the interior, closed cell foam sprayed into the bays. This gives it extra ridgidity. And again, horizontal furring strips, so that I can fasten board and batten on the interior. This would be super insulated and complete air barrier and thermal break. Also it requires no plywood. Is this a good idea or bad idea? Eps foam or xps foam for this application? Also, anything I need to know about the rain screen?
I didn’t find the right solution from the Internet.