You guys bag the print and then roll it?
I mat and bag prints and have not rolled. I just added the Clearbags link incase it was a helpful resource to the OP or others. The bags that I use would not be great for rolling, but maybe someone else has a different arrangement.
A friend who rolls uses acid-free paper below the bottom print and paper between each before rolling. If sending only one print, he uses paper below and on top of the print before rolling.