I picked up SealBest White Roof coating from Menard's.
After cleaning roof I applied the first coat. I'll wait for another nice day and get the second coat on.
I'm hoping to benefit from it's reflecting quality to cool the interior when in full sun. I'll have plenty of chances to see if this works on my next trip as my trailer won't see much shade.
SEPTEMBER UPDATE:
My recent two week trip had the camper in plenty of sun. Happy to report significant interior cooling. Well worth applying.
