Is your roof EDPM? If so we coated the FIL roof last summer. Purchased the coating at a Menards. You have to read the labels as not all are for EDPM roofs and we found only one in there stock that was rated for it. His roof was quite bad being alot was down to the black rubber. We washed it first, let it dry and then began the application. It took 5 coats allowing them to dry very well before the next application. A 5 gallon pail cost about $90 and after the 5 coats I believe there was at least a gallon left. Just bought the recommended nap roller and went to it. His motorhome is 37' and one application took about 30-45 minutes. It truned out great.
Steve & Sally / Hudson Our Little Pom / Heidi, Houston & HiTee Forever in our Hearts
04 NEWMAR MACA 3778 W22 / 05 PT Vert
Michigan (Summer) Michigan (Winter For Now)