I put a sun porch type contraption on my coop today. Their roof is such that any rain/snow that falls off was going to fall onto their board that leads into their pophole. So, I put on an addition-about 3 feet by four feet.It is the same height as that side of the coop- five foot. On the one end, I used plexiglass so that the sun can shine through. The other end is open, but I stood a bale of hay on its end, to make somewhat of a wall. Then, right above their pophole I gave them a roost. I figure that they can hang out there during the day when the snow is all over the ground, or rainy days. They will be protected from the wind, etc and still be out of their coop when they want.