Thank you for the great advice and I think I will do the false wall for sure to deal with the overhead door drafting issue.
I had never thought of venting int the barn...but why not....it will help remove the moist air as well.
Thanks again!
Here is my situation. I have 6 fabulous hens that I got this May and live in a unit on wheels that I move daily to fresh grass and has a small enclosure/roost/nesting box/water/feed all in one. Love it and keeps them very happy indeed. Now it is coming to be fall and I know winter is not far, I...