In Germany, the characteristic snow load on the ground depends on the snow load zone and the altitude of the site. Using shape coefficients, the snow loads on roofs are derived from it – including drifting, roof level differences, valleys and low eaves.
LoCaStatik determines zone and altitude from the address and calculates all roof situations according to DIN EN 1991-1-3 with the National Annex.
The zone map of the National Annex assigns every site. Zones 1a and 2a increase the values of zones 1 and 2 by 25 %.
The ground snow load increases quadratically with the altitude above sea level, with zone-dependent minimum values of 0.65, 0.85 and 1.10 kN/m² for zones 1, 2 and 3.
For sites in the North German Plain the standard additionally requires a check with an accidental snow load of 2.3 times the characteristic value.
For flat, monopitch, duopitch, vaulted and valley roofs as well as for roof level differences, drifting at walls, trough situations and low eaves.
The assignment follows the snow load zone map of the National Annex. LoCaStatik determines zone and altitude from the address and states both in the report.
From the ground snow load, the shape coefficient of the roof shape and the exposure and thermal coefficients. For drifting, roof level differences and valleys, the additional rules of the Eurocode and the National Annex apply.
Yes, LoCaStatik offers dedicated modules for roof level differences, drifting at walls and superstructures, trough situations and low eaves.