I used the Dicor Rubber Roof Coating on my 10 year old 5ver roof. Put it on during the fall of 2015, and still looks white as snow.
No issues with flaking or chipping, but did spend the time to prep it properly.
I'm satisfied with it as the roof was gray with many fine cracks throughout, but with no leaks thankfully.
2006 Keystone Outback Sydney 30 FRKS
1997 Ford F350 Auto, 4.10LS Axle, 160,000 Miles, Crew Cab with DRW.
US Army 1984-2016.