Asphalt roof coating composition having improved recycability

Abstract

Roof coating asphalt compositions containing a compatible blend of non-air oxidized paving grade asphalt binder, asphalt softening point modifier comprising a solvent deasphalted pitch or resin that increases the softening point of the paving grade asphalt binder, impact-modifying polymer and asphalt anti-aging additive. The compositions, are substantially free of air-blown asphalt binder, and have advantages including reduced preparation and coating temperatures, reduced equipoise viscosity, increased resistance to aging and increased recyclability in asphalt pavement.