I've seen what rodents can do when we were inspecting potential used pup-ups in our price range. I've also seen what ants can do (as bad, if not worse) on our first camper (Time-Out, 30 ish years ago). We used snap-traps and ant bait last winter inside our prior Starcraft camper, but it had no openings that couldn't be plugged effectively. Our new-to-us Jayco has more openings and access points because of the ameneties (furnace exhaust, fridge vents, slide-out, and such) and so with the idea of closing these off I'm considering using stretch wrap around the sides to completely close these access areas and assure no gaps under the roof gasket during off-season storage. Has stretch wrap been used by anyone else? Would those that have please provide encouragement for (or warning against) doing so? I also have questions about covering the big lump of A/C on the roof. The pop-up came with a still-in-the-box breathable cover (similar to the fabric on the Time-Out that the ants so enjoyed). I intend to pitch the parked trailer to aid snow sliding, but the A/C will hold back an amount of snow on its 'uphill' side. This snow won't slide off this area of the cover and will tend to glaciate from partial thaw and re-freeze episodes. Should I be concerned about this long term source of snow/ice/water backed up on the high side of the cover? Should I not use the cover in our snowy winters?