One of the light fixtures in the ceiling of my TT has filled with styrofoam powder. When I take down the fixture, the insulation above it is powdered. It's as if something is living up there and chew...
Shoot, my TC is 18 years old and I still get sawdust and styrofoam beads falling out of the ceiling into the light fixtures. Some more than others, a few not at all.
They don’t clean up the areas you can’t see at all before delivery to the dealers.