By the 01 model year NRV went to all fiberglass covered roofs. However some of the prior year parts were used to depletion. I had a 01 surfside trimmed on the outside but the inside was trimmed out as a seaview with all the upgrades.
All the roofs are laminated construction just different top covering. If you take a look at the material you will be able to tell if it fiberglass or rubber.
2007 Sea Breeze LX 8321 Ford Chassis
2004 Ford Ranger Edge
El Cajon CA.