FlexRock Roof Coating application is virtually fume-free and VOC Compliant in all 50 States. This self-leveling thicker system (32 to 100 mils) Ideal for metal roofs, fiberglass, cap sheets, torch down, composite roofs, aged asphalt roofs, concrete roofs, barrel tile, urethane foams, flat roofs, mobile homes, RV's and campers. Size: 5-gallon kit Part A/B