I live in Colorado at around 8800 feet in elevation and have a coop with the inner walls complete and studs exposed on the outside. I am thinking of adding insulation and exterior walls. The coop is about 2 feet off the ground and is wire mesh floor and a 6 to 8 inch slant roof made with clear stronge plastic with grooves to drain water away. There is a 6 to 7 inch gap between header and roof beams on front and back of coop for the full length. I was planning on placing hay bails around bottom of coop to block wind and retain heat from wire floor and maybe covering every other hole in roof to retain some ventilation. So should I go ahead with the insulation ( 1 inch Styrofoam) and outer wall 1/4 oBC or something like that the cheap plywood