SPF Roof re coat?

About ten years ago I had a foam roof installed over a existing roof. I was wondering with the amount of time that has gone by,the coatings have had to improve. What would be the best re-coat with a high reflective surface. I live in the high desert and we get about June,July,and August where temps reach into the high nineties every day. Lots of sunshine,not much rainfall and some snow in the winter.

I think my neighbors roof is ready for a complete tear off.

Any thoughts would be appreciated…thanks.

The answer to the question is in the existing coating. The new coating must be compatible with the existing. Above all, check all flashings and details and make sure the roof is clean before re-coat.