Elastomeric-plastomeric polymer distilled bitumen waterproofing membrane. PLANA P is a prefabricated ELASTOMERIC-PLASTOMERIC (Plastomer-Polymer Bitumen) waterproofing membrane offering good performance. Made from a special compound with a high percentage of polymer, formulated with distilled bitumen modified with special polymers that give the membrane excellent elastic, plastic and rubber-like properties. PLANA P has a polyester nonwoven carrier stabilized with glass strands parallel to the machine direction. The carrier gives tensile strength in all directions, as well as good puncture resistance and dimensional stability.