Membrane TehnoNIKOL Superdiffusive is a three-layer microporous membrane. 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, that due to its unique properties provides diffusion of vapor but does not prevent water flowing.
It is used for making heat-insulating roofs in low-rise housing constructions.