For the roof, you have three panels. Roof sheet and two window sheets. Inside, you have pretty much the same thing. Most Airstreams also have a pair of aluminum extrusions running the length of the trailer, and many ribs and bows. All the 12 volt
, and most of the 120 volt wiring runs down one side of the center panels, front to back, you may have some cooked wiring as well as the panels.