My 1988 Jamboree (not Rallye) has an aluminum roof; it's obvious since it is not painted. I've got the original Manufacturer brochure, covering the Jamboree, the Jamboree Rallye, and the Jamboree Rallye 3000. The brochure refers to "one-piece roof construction" on all 3, and has details showing a seamless aluminum roof in natural finish for both the Jamboree and the Jamboree Rallye. The Rallye 3000 is different, however. While the specs still refer to "one piece roof", there is no detail refering to a natural finish aluminum, and the pics seem to suggest a beige painted roof. No hint at the actual material.
While the Jamboree and the Jamboree Rallye both have steel framing for the walls, floor, and ceiling, the Rallye 3000 uses more conventional wood framing. The Jamboree and Rallye also use radius corner windows, while the Rallye 3000 has square corner windows. If your roof is painted and has a bit of texture, I assume that your windows have square corners? That means it is the Rallye 3000, not the Rallye.
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