Sulfur asphalt in roofing, damp-proofing and water proofing

A method of waterproofing or damp proofing a protected member having a surface with a sulfur-extended plastomer asphalt binder composition, the method comprising the steps of:

• combining a plastomer with an asphalt binder maintained at a plastomer mixing temperature such that an intermediate asphalt binder mixture forms;
• combining elemental sulfur with the intermediate asphalt binder maintained at a sulfur mixing temperature such that a final mixed product in the form of the sulfur-extended plastomer asphalt binder composition consisting essentially of 30% elemental sulfur, 5% plastomer and 65% asphalt binder, each by total weight of the sulfur-extended plastomer asphalt binder composition forms;
• and
• applying the sulfur-extended plastomer asphalt binder composition at a temperature in a range of from about ambient temperature to no greater than 150° C. to the surface of the protected member such that the sulfur-extended plastomer asphalt binder composition contacts, adheres to and forms a layer upon the surface of the protected member that is operable to prevent water migration through the protected member;
• and
• where the formed layer has a first side in contact with and adhered to the surface of the protected member and a second side that does not contact the surface of the protected member.