Best Coop Windows and Vents

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Ventilation is what keeps a coop dry, and dry is what keeps a flock comfortable through winter. The principle is steady air exchange high in the structure, above where birds sleep, so damp air and ammonia rise and leave without a draft crossing the roost bar. Products differ in open area, whether they close against driving rain, how much light they let in, and how well the opening is screened against predators. We weighed effective open area, adjustability so you can dial airflow up in summer and down in a gale, hardware cloth screening rather than flimsy insect mesh, and how cleanly each unit mounts into a plywood or panel wall. Fixed gable vents suit keepers who want set-and-forget airflow. Hinged windows suit anyone who wants daylight and a summer breeze they can shut when the weather turns.