I have wire over my run and we use a tarp over part of the run to help keep the rain off that area and in the winter my DS will put up some ply-wood on the north side of the pen to help keep the wind from blowing in it seems to work there pen where the tarp and board was stayed dry for the most part and their food stayed dry we got one of those heated water bowls for the water and they did okay this last winter. we are building a better coop (larger) so they will have the option of staying inside during bad weather by using the wire and the tarp they can get sunshine and shade and are protected somewhat from the weather but also predators can't get in that was my biggest worry hopefully you can find the answer for you.