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BS EN 1991-1-3:2003 provides guidance for the calculation of:

  • snow loads on roofs which occur in calm or windy conditions
  • loads imposed by snow sliding down a pitched roof on to snow guards and other obstacles
  • loads due to snow overhanging the cantilevered edge of a roof
  • snow loads on bridges.

It applies to new buildings and structures and significant alterations to existing buildings and structures.

Annex A of this standard gives information on design situations and load arrangements to be used for different locations. Annex B gives shape coefficients to be used for the treatment of exceptional snow drifts. Annex C gives characteristic values of snow load on the ground based on the results of work carried out under a contract specific to this Eurocode, to DGIII / D3 of the European Commission.

Annex D gives guidance for adjusting the ground snow loads according to the return period. Annex E gives information on the bulk weight density of snow.

This European Standard does not apply to sites at altitudes above 1 500 m, unless otherwise specified.

This standard does not give guidance on specialist aspects of snow loading.

The National Annex for this standard is now available. Save when you buy BS EN 1991-1-3:2002 and the National Annex together.


The online tool that makes working with Eurocodes simple

The most advanced, convenient and simple way to access Eurocodes is through our online service, Eurocodes PLUS. This practical and easy-to-use tool will saves you hours of sifting and cross-referencing multiple Eurocodes. Find out more:

Eurocodes PLUS


The BSI collection of Eurocodes Books

Concise Eurocode for design of timber structures: BS EN 1995: Eurocodes 5Concise Eurocode for Design of Timber Structures: BS EN 1995: Eurocodes 5
Julian Marcroft

Read more and buy the guide for Eurocodes timber structures


 Concise Eurocodes: Geotechnical Design – BS EN 1997: Eurocode 7
Brian Simpson

Read more and buy the guide for Eurocodes geotechnical design


Concise Eurocodes. Loadings on Structures BS EN 1991. Eurocode 1
Ian Burgess

Read more and buy the Eurocodes guide


The Essential Guide to Eurocodes Transition
Edited by John Roberts

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Structural Eurocodes: Extracts from the Structural Eurocodes for Students of Structural Design (PP 1990)
Professor John Roberts, Haigh Gulvanessian, Buick Davison, Andrew Bond and Peter Watt
Read more and buy the leading guide for engineering students 


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