How do you install rolled roofing?

If you're smart, you don't. Roll it back up, stash it in the garage, and go buy a good heavy rubber membrane system. Note that I said "system." Don't try to put things together that aren't made to work together.

If youI think you're stuck with using the rolled roofing, read the manufacturer's installation instructions (not a sales flier) carefully. Check every detail repeatedly until you're sure you understand it. Otherwise, call a professional.