So below is my chicken coop conversion. Started out with a old metal shed that had a caved in roof due to a branch. So I removed the old roof it was not salvageable at all. I braced up the walls and sides. I ended up putting a new wooden plywood roof on and shingling it. Then I added on the run. You'll see my before and after pictures. So my question is I live in Colorado. It's gets super cold in the winter and fairly warm in summer. Been thinking about putting a roof on the run with either corrugated metal or clear PVC. Are there any pluses or drawbacks to either of those materials? Also over the summer I am going to add interior insulation with some plywood as well.