I'm not sure I want to put a cover over the whole run or even permanently cover it. So I'm experimenting - I hung a tarp with zip ties today over part of the run that faces north and west. We're about to get 3 days of rain - so we'll see if it keeps it drier and better - or if it just makes it more humid in there. I haven't any idea how it will hold up over the winter - hoping it does. I'd like to give the chicks a place to roam where they don't have to get wet all the time. They hang out in the run even in the rain and especially if it's raining they are stuck in there. I freerange them only if I can be outside to watch where they wander. If it works I may consider covering the whole run next year when I expand the run. I'd build an actual roof for the run that would go over the wired roof I have right now. Probably use those clear panels or metal panels from Home Depot and have to build a taller framework to put it all under. Here's what it looks like - any thoughts on whether this will hold up until spring? I'm a little concerned about it collapsing if we get any large amounts of snow - something that is unusual for us, or ice - something that is a more likely occurrence. Here it is before the tarp - I used deck hangers/joists to hold the 2x4s in place and it's covered in a variety of wires - 2x4 welded and 1/2" hardware cloth.