Hi there, we are constructing a coop and run...8x16 footprint. We plan on roofing the whole run, with the coop sharing the roofline to the run if that makes sense. We wanted the plastic wavy panels--how do we make the top of the coop secure from predators? We have: bears, coyote, skunks, raccoons, weasels plus the owls and hawks. We're in the Adirondacks so get lots of extreme weather and deep snow. If you put the wavy roofing on, how do you attach it to the top of the run without gaps? Seems like a silly question but...I'm new to this. Any help appreciated!