American seamless gutters are made of metal and can be of unlimited length. The sheet metal from which they are made is pre-cut in the form of a strip of a certain width and rolled into a roll. The thicknesses used are 0.5-0.6 mm.
It is fed into the machine for the production of seamless gutters and from now on everything is done automatically, with the finished gutter coming out on the other side of the machine.
The machine can also be mobile, thus the production of seamless gutters takes place on site next to the construction site. In this way, ready-made pieces of gutters are drawn with lengths that exactly match the lengths of the eaves of the building, regardless of their size.
Therefore, splicing and fastening of the gutters along the roof is not necessary. We just have a complete seamless gutter along the entire length.
This is the main advantage of seamless gutters. It has been found that in 99% of cases of leakage in conventional metal gutters it is in the area of the joints.
Also, the appearance of rust in galvanized ones is the fastest and much earlier again in these areas.
Therefore, the removal of joints in metal gutters means eliminating these problems and significantly increasing the life and security of the system.