I have a 10 by 10 run that has a wire roof covered with a tarp made for it. I am worried the chickens are not getting enough sun. sun does come in sides some. Hubby says it’s fine and I worry to much about the girls. I haven’t been free ranging as I am in a wooded area with lots of critters both flying and otherwise but might try. My girls are 9 weeks old. I am new to chickens but loving every minute of these delightful creatures.