Geroof nonwoven roofing membrane is a geosynthetic material made of polymer fibres, manufactured using a special technology, which facilitates faster and easier installation of the material when constructing pitched roofs in low-rise cottage construction and operated flat roofs in industrial civil engineering. When mechanically fastening the roofing sheets, the fibres of the sheeting do not twist on the self-drilling screw. Used when installing polymer membranes on hard, rough substrates (old bituminous coating, reinforced concrete, cement-sand screed, precast screed, wood and plywood decking) as a separating layer.