The membrane consists of a core, elastomeric bitumen compound and surfacing material, in multi-layers, laminated together.
The core is coated on both sides with the elastomeric bitumen compound. The membrane is finished by covering the upper surface with HDPE film or a choice of other surfacing materials that meet the requirements of a variety of applications. One side of the upper surface is covered with a 10-cm siliconized strip. The lower surface is completely covered with siliconized release film.