The State building regulations can require that action is taken in order to prevent snow and ice from falling off roofs.
Snow loading zones are regulated according to DIN 1055-5 “Effects on bearing elements” Part 5 - Snow and ice loads.
In the case of metal roofs, tube systems arranged in several rows are preferred. These are attached to the longitudinal ribs of the roof sheets with clamping plates.
We recommend inserting ice retainers in the middle of the sheets. These are fixed between the snow retention tubes and the surface of the metal.