I am planning on converting the back 1/3 of a shed which is pretty much the size of a one car garage. I am 5'8" tall and was planning on making the coop as tall as the roof to be easily accessable for cleaning and collecting. (maybe 6 1/2'?) But as I live in PA and more space is harder to keep warm I am wondering if I should cut it down to maybe 4'. Its close enough to the house to run a heavy duty extension cord if I have to but nothing to fancy. And what kind of insulation is best, I was wondering about the styrofoam type stuff as there will be plywood covering it. Im trying to do this on a minimum of $ which is why I choose the shed wich already has vinyl siding and a garage door on the front to open for air in the summer. Any opinions are appreciated, thanks.