Novia Methane Pro flap seal BOPP (biaxially oriented polypropylene) tape is an extremely high tack, high tear resistant, low emissivity and low moisture vapour permeability lap sealing tape used in all air and vapour control layer and damp proof membrane applications. The use of a high specification hot melt adhesive gives the tape superb adhesion and the use of a high performance metalised polyerter improves the overall strength and toughness of the tape. This tape should be used as an edge and lap sealing tape in conjuction with the double sided butyl sealing tapes.