What’s wrong with this wall?
From inside out…
Diagonal T brace or let in 2x bracing
2″ XPS caulked and taped (doubles as WRB)
Horizontal Furring strips
2×4 framing w/ 2″XPS makes window bucks easy. Extira (exterior grade MDF) is the probable siding choice as the desired look is approx. 2’x4′ panels, and smooth texture is preferred. Running the furring strips horizontally allows the panels to be fastened in a location the makes sense for the panels, as well as allowing some customization of panel size. What am I missing/overlooking