Has anyone ever tried those clearish polycarbonate panels (used for greenhouses) on the sides of a coop, instead of just the roof? The coop would be located in a place that would only get limited morning sun, and I'm in WI, so I'm not too worried about it getting too hot in summer, but how do they do in winter? If I have adequate ventilation will they keep the coop warmer of cooler than, say, wood? Part of my interest is financial (although I haven't priced it out completely yet) and part is because I live in the city, so anything that looks less like a chicken house, and more like something else (a greenhouse) is better. It is legal to have chickens where I am, but two if the houses bordering my property are rentals, so if my neighbors change they might not be as nice as a my current ones. Plus the other neighbor's house is for sale. I'd just rather keep my little banties on the DL.