I bought 6 (roughly 5 month old) pullets from someone I don't really know, and want to keep them in quarantine for perhaps a month before introducing them to my flock of 22. Right now, they are housed in a large (20x24') hoop house in my garden. They are confined to about 1/3 of the space by poultry netting. It is a good-sized space with 10 feet of height. My concern is humidity. It is definitely more humid in there than it is outdoors. Ice forms on the ceiling overnight, and then drips during the day as temperatures rise. It's not super wet or anything, just somewhat humid. Tonight will be 11 degrees, and I wonder if the cold temperatures and humid air are a problem. Is there anything to worry about, other than frostbite? I'd like to keep these birds in there at least 2 more weeks. I appreciate any advice!