That's cool. We agree to disagree.
Pop doors provide zero ventilation when they are closed.
In over 60 years with chickens in extreme colt to extreme heat and high humidity in both. I've lost birds to heat but never to cold. I've never had a chicken with a respiratory issue. The reason is huge...
Make sure it is accurate. Hygrometers are notoriously inaccurate out of the box.
You can put it outside out of the sun or wind and see if the reading is close to what the weather channel or accuweather are citing for your current humidity.
Please don't worry. You may think it is cold but they...
The coop is nice overall.
Definitely lose the metal pipe for roosting. It will cause frostbitten toes in Indiana.
I'm going to disagree with everyone else. You need double the ventilation you have.
Wet straw will cause high humidity which in turn leads to frostbite and a breeding gound for...