1992 Conquest 21' roof

[Bholdbtw]

Purchased the 1992, 21' Conquest Limited Edition and have a question about the roof. Wanting to reseal the roof, I went to the local RV dealer to purchase a resealer product. He asked what type of roof is on the RV, and I was stumped.

What type of roof is a standard on these RV's and what is the best sealer to overcoat the roof?

Thanks
Brian