Welshies
Crowing
I totally agree. I certainly learned that last bit the hard way when we had -50 temps.-20 is super cold, I see frostbite under -10 Fahrenheit, shed is well ventilated. Moisture isn't the issue at colder temperatures as the humidity drops along with the temperature. If there's a moisture build up at lower temperatures it's a ventilation problem for sure, but here temperatures are the main factor in frostbite.
Different places have different weather conditions so it isn't a one size fits all situation.