PROTECTIVE COATING FOR ROOF MEMBRANE

摘要

A protective coating for a roof membrane of the type having plasticizers. The protective or barrier seal coating is applied the exposed surface of the polymeric roofing material, where it prevents and/or retards plasticizer migration to the surface of the membrane where they are subsequently removed. By preventing or retarding loss of plasticizers from the roof membrane, the concentration gradient of plasticizers throughout the membrane can be maintained and the life of the membrane can be extended. The protective or barrier seal coating may be further coated with conventional coatings such as elastomeric acrylics. Methods of applying the protective or barrier seal coating are disclosed.