Snow zones

Sweden is divided into snow zones. Here you will find tables and maps of the various snow zones. This information will help you to dimension and calculate the distances for your snow guards.

A snow guard that only covers a short part of the length of the building, e.g. over a door, runs a considerable risk of being overloaded. We have developed a calculation in order to safeguard the function. Calculation of short snow guards


Map with snow load zones

The map is an aid to make it easier to assess the snow load that should be used when determining the design snow load in a given location. Legally speaking, the map in the Swedish National Board of Building, Planning and Housing's code of statutes (BFS 2011:10) EKS applies.

By zooming in on the map, you can see the municipal boundaries and chief town in each municipality. By clicking on the map, you obtain data on the ground snow load in kN/m² at the location where you click. The snow load refers to the ground snow load that recurs on average once every 50 years.

Bear in mind that the snow zone boundaries are only a rough estimate. Close to a boundary, it could be a good idea to consider choosing the higher snow load.

There may also be regions in upland terrain that have greater loads than those specified in the regulations. The regulations are only society's minimum requirement.

 

Distance table

Distance table for snow guards according to SS 83 13 35:2012 with snow zones according to BFS 2015-6-EKS 10 and form factor according to Eurocode SS-EN 1991-1-3. Loads on load-bearing elements – Parts 1-3: General loads – Snow load

The tables below show the maximum distance in metres between snow guards on sloping roofs, calculated based on the snow load's basic value. The standard horizontal distance between brackets (mounting points) for a snow guard is max 1200mm.

NOTE! The calculation of distance between snow guards differs for pentroofs and saddle roofs.


°





Max. distance between snow guards for saddle roof (m)

Roof gradient (degrees)
Snow zones according to the Swedish Board of Housing, Building and Planning's Design Guidelines
1 1,5 2 2,5 3 3,5 4,5 5,5
6 54,7 36,4 27,3 21,9 18,2 15,6 12,1 9,9
10 31,3 20,9 15,7 12,5 10,4 9,0 7,0 5,7
14 21,6 14,4 10,8 8,6 7,2 6,2 4,8 3,9
18 16,4 10,9 8,2 6,5 5,5 4,7 3,6 3,0
23 12,6 8,4 6,3 5,1 4,2 3,6 2,8 2,3
27 11,2 7,5 5,6 4,5 3,7 3,2 2,5 2,0
33 10,0 6,6 5,0 4,0 3,3 2,8 2,2 1,8
38 9,4 6,2 4,7 3,7 3,1 2,7 2,1 1,7
42 9,1 6,1 4,6 3,7 3,0 2,6 2,0 1,7
45 9,1 6,1 4,5 3,6 3,0 2,6 2,0 1,7
50 9,2 6,2 4,6 3,7 3,1 2,6 2,1 1,7
55 9,7 6,4 4,8 3,9 3,2 2,8 2,1 1,8

Max. distance between snow guards for pentroof (m)

Roof gradient (degrees)
Snow zones according to the Swedish Board of Housing, Building and Planning's Design Guidelines
1 1,5 2 2,5 3 3,5 4,5 5,5
6 60,1 40,1 30,1 24,0 20,0 17,2 13,4 10,9
10 36,5 24,4 18,3 14,6 12,2 10,4 8,1 6,6
14 26,6 17,8 13,3 10,7 8,9 7,6 5,9 4,8
18 21,3 14,2 10,6 8,5 7,1 6,1 4,7 3,9
23 17,4 11,6 8,7 7,0 5,8 5,0 3,9 3,2
27 15,5 10,3 7,7 6,2 5,2 4,4 3,4 2,8
33 13,7 9,1 6,8 5,5 4,6 3,9 3,0 2,5
38 12,9 8,6 6,4 5,2 4,3 3,7 2,9 2,3
42 12,6 8,4 6,3 5,0 4,2 3,6 2,8 2,3
45 12,5 8,3 6,3 5,0 4,2 3,6 2,8 2,3
50 12,7 8,5 6,3 5,1 4,2 3,6 2,8 2,3
55 13,3 8,9 6,7 5,3 4,4 3,8 3,0 2,4

Calculate c/c distance between brackets for a snow guard (max 1200mm)

Snow zone

Roof gradient (degrees)

Length of roof drop (m)

Result saddle roof:
c/c - measurement (mm)

Result pentroof:
c/c - measurement (mm)