● The joint between two double-walled gutter bars is carried out by placing the 2 ends of the bars on the assembled joint. Once the three elements are stabilised, they will be blocked on the outside by the joint cover, which has the same profile as the double-walled gutter channel. .

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.