First winter with chickens and hubby doesn't have coop done. Our chickens are in a covered dog kennel placed on the corner of an unused concrete basketball court. All is fine except when it rains the water is running into the kennel. Is there a way to divert the water or some type of dam to lay around the kennel to keep the water out without ruining the cement? What if I tried to raise the floor, maybe use a mat of some sort, maybe a horse barn floor mat? Would that work with chickens and cover it with straw or chips? Ideas?