If the surfaces to be insulated are concrete and finished with a wooden float and sloping mortar, they should be clean and dry. Before applying the Izofalt water insulation membrane from the Izofalt series, a bituminous solution primer (IZK-3000) or a bituminous emulsion membrane primer should be applied to the surface, and it should be allowed to dry.
The application of the Izofalt water insulation membrane from the Izofalt series starts at the lowest point (lowest elevation) of the roof and perpendicular to the slope. The membrane is adhered to the surface by heating it with a torch or by pouring hot asphalt in front of it. Staggering should be done between rows. In short-edge overlaps of the membrane (1 m), a 10 cm overlap should be left, and for long-edge overlaps, a 15 cm overlap should be left, ensuring that the joint areas are well bonded. Between layers, a stagger of 50 cm on the short edge and 5 m on the long edge should be applied.