● The installation of the 145 gutter system may require the use of an external corner in the event of a change of direction of application to 90°, at the internal junction of the perimeter pitches of the roof. The internal corner of the gutter 145 is already equipped with a gasket for installation.

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.