More ideas from Monolight
We used stick on tiles from either Home Depot or Lowes (I cant remember, but they both have them).  Its important to use glue instead of just sticking them on- the camper will shift and they will fall off.

INSTEAD: use actual sheet metal cut into tiles! -We used stick on tiles from either Home Depot or Lowes (I cant remember, but they both have them). Its important to use glue instead of just sticking them on- the camper will shift and they will fall off.