Either way you'll not be able to walk in there once you get the roof on unless you have a way to lift the roof up to clean. So maybe hinge the panels and instead of one long one make 2 half so it would be easier to lift and then you could put some kind of heavy duty latch to keep them from being lifted up unless it is you doing it. Oh I forgot you don't have raccoons but hey still would be a good idea to be able to latch the 2 tops together. I'd just go with flat laying down on top . They look great and how nice to have the person only 30mins away.