Fatrafol 804 is a high-quality, unreinforced PVC (PVP-P based) waterproofing membrane designed for use as a component within Fatrafol reinforced roofing systems. This UV-resistant membrane is ideal for detailed finishing and joining of Fatrafol 807 membranes, ensuring a continuous and reliable waterproof layer on roofs. It's specifically designed to supplement reinforced Fatrafol systems and must be installed by trained professionals.