Beyond 12 meters of gutters, you must take into account the expansion of the PVC which can vary in the direction of the length according to the temperature.
Thus, when it is hot, the gutter extends several millimeters. And in cold weather, it retracts. This is the reason why a PVC gutter is never fixed on its hooks, but simply nested on it. It is therefore necessary to install dilatation joints at regular intervals or to limit the lengths between two fixed points, such as descending births for example.
As an indication, it is assumed that a PVC gutter profile with a length of less than 12 meters requires a jointed birth and two junctions. A gutter profile with a length greater than 12 meters uses a dilatation junction every 8 meters and two births. Attention, the distance between the two descents of gutters must not exceed 24 meters.
Good to know: the scalloped stems do not remove the first row of tiles to screw the hooks. This installation method is suitable for laying PVC gutters on roof tiles, fiber cement roofing sheets or steel tanks. The metal stirrups are attached directly to the top of the upper wave of the cover plate (thanks to the adjustable hook clamp).
Then bend at the angle of the stirrup to fit the slope of the roof. Then attach the PVC hook and adjust the distance between the gutter profile and the cover plate. The mounting system of the Best Gutter and Gutter Cleaning Peterborough is distinguished by its simple hook and aesthetic to be invisible when looking from the bottom to the top of the roof.
The headband hooks mounted with stirrup do not exist in the Best model, it is therefore necessary to associate a galvanized steel stirrup with the headband hook Best (screw the headband hook on the stirrup using the galvanized bolts provided). Direct laying on tiles: use of stirrups for standard or crocodile tiles. Direct installation on steel or fiber cement tray: use of caliper for standard or crocodile cover plates
Assembling your PVC gutters by gluing or seamless joint system. PVC gutters are very easy to install without the need for glue welding or a very practical joint system. Cut the gutter to the required length with a hacksaw and remove the burrs with sandpaper. Clean the surfaces to be glued with a specific stripper for PVC. Spread with a brush or directly with the tube glue at the end of the gutter and accessories.
Fit the two pieces on 5 cm without turning in a maximum of two minutes and maintain a constant pressure on the parts mounted for a few seconds to allow the glue to perform its function of cold welding and Gutter Cleaning Peterborough.