The bottom of the first shell that closes doesn't actually meet the top of the second shell that closes, they're kind of offset. There is also a bag seal (basically some padding surrounded by vinyl) that is attached to the edge of each shell that provides some padding and insulation. You'd have to see one in person, but it just doesn't get wet. Plus, the roof is sloped down on each edge from the center.
We do bring an angled broom (it's a carwash brush) along when we're camping, and if the roof is especially dirty, we like to broom it off before we leave. If we don't broom it off I don't think the rest of it would be dirtier, but we just like to clean it off, especially if there's leaves and pollen on it.
__________________
'97 2720 & '01 Chevy Silverado 1500 4x4
2011 & 2017 Prii, 10'x18' & 10'x9' Tents
|