Thanks to all who replied and a BIG thanks to Fentonite for the material. That was some heavy duty stuff - it looked and felt like thick vinyl/fake leather stuff. And there was more than enough to do the whole roof (in fact, if anyone needs any there are still at least 3 8' long strips left, PM me.)

Finished the shed yesterday, wife painted it and it is now filled with our extra junk!

Hmmm...tried to upload files to show a pic but couldn't. May have to do that from my phone.