7/2015, new source for 3" break siding with the Pittsburgh seam: http://www.chcampers.com/camper_siding_for_sale
In 01/12, Tim said: I run a Restoration Shop for vintage trailers and have a gutter shop make any skin I need made! Especially the easy patterns like the rib patterns found on Scottys and Shastas! Last time I reskinned a trailer I bought the aluminum from another place (which I will not do again, later found out the gutter place could get it MUCH cheaper) and the Gutter place only charged me $75 to bend the profiles in all the sheets! Enough to reskin an entire 15' shasta! and put the lock seams on the end.
If you have any of the old skin I would suggest taking it to some AC, Gutter, metal roofing, Machinist shops. Make sure to take a piece with a sample of the seams you need. (Note from Nancy, for a Scotty that is a 3" break with a Pittsburgh seam).
These sources have been recommended as places for replacement siding. Others have obtained plain aluminum from tractor trailer repair places and manufactured their own siding. If you do that, you'll have to put the crimps in every 3". This is a handy thing to do if you want to redo your roof without the two seams that were in it originally. If you have anything to add, please
In 6/08, Eric added these comments: I ended up finding the cheapest prices on the 3" break or 3" run aluminum at RV Surplus in Elkhart, IN. Even though they don't list it on the website, they can make the pattern. The seam used on Serro Scotty siding is the Pittsburgh seam. I also ended up getting the roof aluminum from them. I would suggest talking to Trina, the manager, about having them ship the aluminum to a local distribution warehouse, if possible. Normally they use UPS Freight and that was a nightmare for me to deal with (scheduling issues, etc.). The single sheet of roof aluminum was interesting to work with and I recommend having friends around when you decide to unroll it (think of a coiled spring)!
In 5/11, Ron added these comments: I called Hoyt Truck Center in Kansas City, and they put me in touch with their source, the Kansas City location of Jim Hawk Trailers. They have aluminum sheet 103" wide in a coil (489 feet left on current coil!) @ $ 13.84 a running foot. This is twice as thick as the original Scotty roof (.040" instead of .020"), so it doubles the weight: my Gaucho needs a 76" x about 13 ft. piece, which will weigh about 46 pounds, a 23 pound increase in weight - I can live with that! I located a machine shop in Emporia that can shear it to my width, and Emporia is on a Jim Hawk delivery route - I won't have to pay freight, so I'm all set- just a 40 mile round trip and I will have my new roof at home in about a week!