Vapor Barrier Film TehnoNIKOL for sloping roofs and walls is a three-layer vapor barrier for inclined roofs which provides durability and reliability. The top and the bottom layers are nonwoven fabrics of polypropylene, which build a firm frame for the middle 'working' layer. The middle layer is a polypropylene film with a function of control of vapor transmission. The vapor barrier layers are combined by low temperature ultrasonic welding.
It is used for heat-insulating roofs in low-rise housing constructions.