EN 22 module

Wind load zones

Fig. NA.A.1 — Map of wind zones for the area of the Federal Republic of Germany

from: DIN EN 1991-1-4/NA:2010-12

Fig. C.1 — European climate regions

From: DIN EN 1991-1-3:2010-12

Fig. C.2 — Alpine Region: snow load at height above sea level

SchneelastzonenD

Fig. C.3 — Central East: snow load at height above sea level

Fig. C.4 — Greece: snow load at height above sea level

Fig. C.5 — Iberian Peninsula: snow load at height above sea level

Fig. C.6 — Mediterranean Region: snow load at height above sea level

Fig. C.7 — Central West: snow load at height above sea level

Fig. C.8 — Sweden, Finland: snow load at height above sea level

Fig. C.9 — UK, Ireland: snow load at height above sea level

Fig. C.10 — Norway: snow load at height above sea level

Fig. C.11 — Czech Republic snow load at height above sea level

Fig. C.12 — Snow map of Iceland

Zone	S_k, kN/m²
1	0,007A – 1,4	S_k ≥ 0,70
2	0,9
3	0,006A – 0,6	S_k ≥ 1,2
4	1,6
5	0,93exp(0,00134A)	S_k ≥ 2,0
A is height above sea level of the building

Fig. C.13 — Snow map of Poland

Table NA.B.1 — Terrain categories

Terrain category I Open lakes; Lakes with at least 5 km of open space downwind; smooth, flat land with no obstacles Length of roughness z₀ = 0,01 m Profile exponent α = 0,12
Terrain category II Terrain with hedgerows , singular farms, houses or trees, e.g. agricultural area Length of roughness z₀ = 0,05 m Profile exponent α = 0,16
Terrain category III Suburbs, Industrial zones or business parks; forests Length of roughness z₀ = 0,30 m Profile exponent α = 0,22
Terrain category IV Urban areas in which at least 15% of the area is occupied by buildings whose average height exceeds 15 m Length of roughness z₀ = 1,05 m Profile exponent α = 0,30