I have never had chickens (Iza Browns) in the winter. We made a shed (like a lean two roof) this summer. Insulated, cement floor, window with screen and a pull up-drop down door at night with a rope and pulleys. Its about 52 degrees in there all the time. We have a heat lamp, two light bulbs and a floor heater. I have wood shavings on the floor. We have no roost, did not have to time to make one, so I put two wood planks down on the floor. They do not want to lay in the two boxes we have (have 6 of them) so they fashion a nest out of the wood chips and lay the same place everyday. It does not stink, its aired out pretty good with a screen over the tool shed door (halk coop/half my dads tool shed). I take a pitch fork and turn the chips everyday. They have a nice big run. Covered half of it with a tarp. Its now snowing, and the run has snow in it. The girls will not go out. I hope I am doing everything right. They just dont like the cold. Is it ok if they go out? Why dont they go out? We put a lot of money and time into this coop. Please tell me if I am doing ok, and if I need to do something else. I was thinking of tarping the whole run. But that takes some money. Thank you!