I think the trick is regulating the venting with the upper windows. Seems that you would want it open just a crack even down to just freezing temps.
I'm in a warmer climate. Barely gets down to 25 once or twice in the winter and then only for a few hours in the early AM. I should have an 8x12 woods done in a couple of months. Will probably leave the upper window open, at least partially, all year. My current shed coop is open near the top all year now, with no issues.
I'm in a warmer climate. Barely gets down to 25 once or twice in the winter and then only for a few hours in the early AM. I should have an 8x12 woods done in a couple of months. Will probably leave the upper window open, at least partially, all year. My current shed coop is open near the top all year now, with no issues.