Extend the life of your rubber Roof! Two part, commercial grade system provides an excellent protective barrier for extending the life of EPA. Part 2: cool coat insulating coating has ceramic Microcells to reduce heat transfer, known as heat flux, to the coach interior by 29%. cool coat reflects and dissipates solar heat with tiny yet indestructible vacuum spheres to reduce A/C demand. Use with decor rubber Roof cleaner/Activator.