Curtain Walling: Resistance to snow load
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Principles
The curtain wall shall have sufficient strength to resist any snow load and shall have sufficient stiffness to ensure the serviceability of the wall.
Resistance to snow load is determined by calculation of deflections and strength of the framing members. Calculation is based on the approriate Eurocode for the framing material.
Snow loads should be considered in conjunction with other loads. Guidance on load combinations to be considered is given in CWCT SSBE and CWCT TU14 Load combinations.
Standards
| EN1991-1-4 | Eurocode 1 - Basis of design and actions on structures - Part 1-4: Actions on structures - wind loads |
| EN1993-1-1 | Eurocode 3 - Design of steel structures |
| EN1995-1-1 | Eurocode 5 - Design of timber structures |
| EN1999-1-1 | Eurocode 9 - Design of aluminium alloy structures. Part 1-1: General structural rules |
| CWCT TU14 | Load combinations |
Method of test
There is no method of test
Classification
There is no classification for resistance to snow load. The safe snow load resistance, calculated in accordance with the relevant Eurocode, is declared on the CE Mark in units of kN/m2.
CE Marking
UK Regulations require a building to be structurally safe:
| Location | npd allowed |
| England and Wales | No |
| Scotland | No |
| Northern Ireland | No |