If you would like some more information or ideas about keeping hens check out this article.
Chicken coop ventilation designs.
Carefully designed ventilation is included in all 15 coop designs to save your chickens from diseases and overheating.
To do that think of your coop as having three levels from top to bottom.
When looking at chicken coop designs or plans satisfy yourself that they include enough ventilation openings for your particular climate pattern and that these openings have an easy and efficient way of sealing off drafts during cold or bad weather.
Ammonia moisture and hot air all tend to rise vertically in the coop.
Adding ventilation near the roof line in the form of vents drilled holes or small windows allows for this.
Ceiling mounted fans and wall mounted fans.
The point of coop ventilation is to get all three of them out.
Insulating your coop is a great idea as long as the chickens have adequate ventilation for getting rid of all the humidity dust carbon monoxide etc.
These coop plans help avoid predators giving your chickens a comfortable and cared for living environment.
If your coop has access to electricity installing fans is an excellent way to add ventilation to a chicken coop.