Rust-Oleum 750 Elastomeric Roof Coating provides energy efficient, long-term durability and excellent resistance to weathering and dirt pick-up on metal roofs, concrete, weathered single ply roofing and smooth surface built-up and modified bitumen systems. Long lasting weatherproofing protection, Low temperature flexibility down to -30 degrees. Waterproofs and weatherproofs metal, weathered single ply membranes, asphalt built-up and modified bitumen roofing substrates. Water-based coating offers 87% initial reflectivity and 77% weathered reflectivity for advanced energy efficiency. 2 coats recommended for durable protection; dries to the touch in 4 hours and recoat after 24 hours. Rain resistant in 4 hours and superior mildew resistance Formulated to meet and/or exceed the standards established in ASTM D 6083. 15 year warranty.