I’ve been watching diligently for any condensation in my coop and have never found any. This morning, after a 10 degree night, there was a small amount of frost on the window and one wall. Is this a ventilation issue? We have some cold nights coming up and I want my ladies to remain comfortable. I have a picture of the frost and my coop ventilation attached. The coop is not insulated but is draft free and very solid. The vent is behind the roosting bars. I can open it up further and snow/wind don’t come in. I have 4 buff Orpington hens. Thanks!