Im in the Pacific NW, average temperatures run 40s in winter and 60s in summer. It can dip down to the teens and go up to the 80s on rare occasions. The 12 x 5 coop and covered run are in a shady spot with plenty of ventilation. Ive read all the archived posts on this list about the pros and cons of clear roofing and decided to put clear roofing on the coop and run. But the builder thats installing the roof brought over a semi-transparent roofing (even though the label says "clear") that has a blue tint that allows light through but is clearly not 100% clear. It hasnt been installed yet but will be tomorrow. I dont like the blue tint and think the clear would look better. Plus I want to be able to see into the coop from my upstairs window (okay maybe this is a little obsessive but it would have advantages--i plan to have a light on in the coop from 4 to 10 pm Oct thru March). But maybe the chickens would be better off with semi-transparency rather than fully clear roof, I dont know. Any thoughts on this?