I was just thinking of some way to keep the cold out of my coop at night even better. I have 4 single pane shed windows on each wall of my coop. I can't film the windows because 3 of them the chickens have access to. I was thinking! of putting shutters on the windows on the outside to keep the window off them. Does that sound like a relatively okay idea? Mine are self-flashing windows as well, so I'd have to build the sides up a bit to get the shutters over them.