● The installation of the 100×110 gutter system may require the use of an external corner in case of a change of application direction to 90°, at the external junction of the perimeter pitches of the roof.

● The external corner is a Bi-System accessory and can therefore be assembled to the gutter profiles using both the gluing and gasket systems.

The gutter system has the function of collecting rainwater from the roof and conveying it within a disposal network made up of downspouts, wells, siphons and underground pipes.