I am wondering if someone can provide photos or an explanation of a roost hood. I have an 8 x 8 insulated chicken coop with the vents at the to, two windows I close in winter, and a pop door under the poop board. Each winter I have to put styrofoam inserts into the one over the roosts to keep snow from falling onto the poop board and roosts. It only happens a few times a winter, but I think a roost hood, if it is what I'm thinking would stop that and still keep the ventilation going. I haven't had issues with ventilation, and I can't find anything including photos on a roost hood. I don't want to assume and make something that would be useless.