The bitumen-polymer LARIX SELF-ADHESIVE HP V.B. membranes are the arrival point of the latest generation of membranes denominated “composite”. These membranes are thus defined because thanks to a production technology developed in 1995, Laribit can produce materials with differentiated waterproofing mass, which allows the optimal use of each layers properties, satisfying the different requirements. LARIX SELF-ADHESIVE HP V.B. are pre-fabricated waterproofing membrane for specific use as a total barrier to the passage of vapour. LARIX SELFADHESIVE HP V.B. has a continuous single strand composite woven non woven polyester reinforcement with high mechanical characteristics and an aluminium film which allows to obtain a barrier to the transmission of vapour.