Here's a neat idea that won't cost much and you can reuse year after year, remove to store flat or just keep it in place. Use cattle or hog panels arched over your run, secure with zip ties and THEN tarp it out. The arch will shed the rain and snow, is rock hard steady in high winds and storms and lightweight, easy to work with and can be used in so many ways around a yard.
You can use them in creative ways to make chicken tractors, small green houses, broiler pens, hay storage and lounging sheds for small livestock. Each panel will cost around $18-$22 and are 12-15 ft. long and 3-4 ft. wide. They are easily cut with bolt cutters or sawsall, bend in creative ways, can be used for gating, penning and building structures.
I built a sheep shelter out of them and just used T post, zip ties, tarps and a cargo net and that shelter never moved in our horrible high winds, shed the 3 ft. snows we got that winter and kept everyone dry as toast.