I know there is a similar post below this but my specific question is what can I do to minimize or release excess humidity in negative degree temps? What % humidity is considered dangerous? I have core drilled holes in the tops of the coop but still get condensation/frost on the door which is all windows. also, the bedding (shavings) seems to get damp and frozen to the vinyl floor. Just trying to think of ways to release this extra humidity so the 12 chooks don't get frostbite, have been applying vaseline at night. My coop is 8'x8'x8' and has 12 chickens. no heat/electric. Thank you for any and all suggestions...