ValarieF
🌈🤪😵💫💫🐣Insane Chicken Possy!🤪🐥🐤🐓🌛
4 square feet per bird. and the more ventslstion the better. Do not close ventalation off in the winter as the birds create moisture and will get frostbite. The outside run should be 10 sqare feet per bird.You need to first calculate the necessary square footage based on the number of birds, 1 square foot per bird. That's your THEORETICAL minimum for 24/7/365 ventilation .
Then, if you live in a hot climate you should probably double or triple that.
Beyond that, you may want additional supplemental ventilation that's opened in hot weather and closed in cold weather.
My brooder here has 16 square feet of absolutely draft-free permanent ventilation with an additional 10 square feet of supplemental ventilation: https://www.backyardchickens.com/articles/run-to-outdoor-brooder-conversion.76634/
NAILED IT.
Those little louvered shed vents are essentially USELESS.
Taking strips of siding off and replacing them with hardware cloth is what's wanted.
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