Hey gang, this is Rob from JandR Trailer Repair.... saw this post and had to put this up. Don't waste your money on all that rubber roofing crap... and I say that lightly.
Jim and I did so many roof overlays at the shop and saved people thousands. Anyone who is handy can do this... it is a lot of work, but you will thank yourself and your wallet will still be full after doing this. We never had one come back.
The product is called Peel N Seal and here is a link :
This is 36" wide and comes in a really nice textured white so it will look original once you do a 3 pass install.... one down each side overhanging the edge for you to put under your trim and then the final, center pass that will overlap both side pieces about 5 to 6 inches so you have a really nice seal. This is an asphalt based seal, so when it is out in the sun, it will set up for life! I know this will help you out and you can get this done for probably $400 or right in that neighborhood. Best of luck and I hope you decide to try this out!