We live in Maine, we are building a new coop and I want to use ridge vent on the roof for venting. My husband says it will move too much air and will be too drafty. The ceiling is 8 feet in the air, we could put in some small collar ties at the very top and put a ceiling in it that has gaps at the sides for air flow and to deflect cold air dropping straight down. Our coop is 6' x 6'. I want to use a deep litter method and I am worried about ammonia in the winter. The coop is insulated. I want the best solution for venting.