Roof Cleaning - Maintenance

Use a mop to get the worst off, then use bleach (allowed for rubber roof) to get the black spots off. Spray 100% laundry bleach in an area, let it turn yellow and the black spots turn grey, mop that, hose it down, move to a new area to spray. Repeat if the black spots don't go away completely. Takes a while but it works great.

Hose off the sides of the rig after too in case the bleach bothers the decals. Not seen a problem there myself, but it is a standard warning, so included here :)