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PUBLICATIONS > ICBEST'01

'WIND DAMAGE TO ALUMINIUM STANDING SEAM ROOFS: FATIGUE FAILURE OF ALUMINIUM HOLDING DOWN CLIPS'

A Paper presented at the International Conference on Building Envelope Systems and Technologies,
Ottawa, June 2001.

Keywords
wind damage, standing seam roofs, fatigue failure.

ABSTRACT

In recent years there have been reports of wind damage to fully supported aluminium standing seam roofs in the UK. On investigation it was found that the holding down clips made from aluminium had fractured at their base, allowing the roofing panels to lift and eventually break away.

The Paper describes the findings from site investigations on two different roofs that failed at wind speeds significantly less than design. The modes of failure are examined, recognising that the wind applies a cyclic dynamic load onto the lightweight flexible roofing system. The paper concludes with current best advice for designers and contractors.



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International Papers