The corner fittings L 425 - 90° are used to connect roof membranes with rainwater drains close to walls and can be positioned either horizontally or vertically. The corner fittings are available in two sections to better suit water drainage requirements, and the flange is slightly inclined compared to the tang to facilitate the installation of the drain connector on a slope. The elasticity of the raw material with which they are produced allows for excellent flexibility even at low temperatures, enabling the mechanical and physical characteristics to remain unchanged for a long time. They have excellent resistance to deterioration caused by the sun, ozone and other atmospheric or chemical agents normally present. The large perforated flange ensures perfect adhesion with bituminous membranes, and the long 425 mm tang allows them to cross walls of up to 40 cm. They are perfectly compatible with APP and SBS prefabricated bituminous membranes and bituminous coats. For maximum performance, sandwich laying between two layers of membrane is recommended. To improve adhesion, the drain connector can be pre-coated with a light coat of primer.