Last night when I went to close the coop, rats scattered out of the run. At least I know how the are getting in! They are getting in thru the small space of the roof. I'm using fiberglass wavy tiles. Had anyone used these and if so how do you seal each space? I'm sure I can figure it out but gross! I hate rats! I'll be keeping the food and water inside the garage and bring out in the morning for the girls.