Prefabricated SELF-ADHESIVE bitumen membrane produced using ADESO technology. ELASTOFLEX SA AF P is a top-quality prefabricated SELF-ADHESIVE bitumen membrane produced using ADESO technology, the innovative ELASTOMERIC (SBS) compound laminating system. ELASTOFLEX SA AF P is BROOF(t2) certified to the requirements of the external fire performance standard EN 13501-5 and BROOF(t1) KOMO Certification (Holland). In the ADESO membranes, the exclusive SEALLap polyurethane self-adhesive system further improves the bond along the side laps of overlapping membranes as they are applied. In the mineral versions, the ADESO membranes feature the FASTLap system, the head selvedge free from slate chippings, which allows a faster and easier application and a better sealing of the overlaps. ELASTOFLEX SA AF P is a membrane produced to the standards set by NAT technology, the production system for the control of polymer matrix ageing in bitumen membranes. ELASTOFLEX SA AF P has a polyester nonwoven carrier, stabilized with glass strands parallel to the machine direction. The carrier gives good puncture resistance, dimensional stability, and tensile strength in all directions.