Avoiding wind-induced risks for renewables on roofs
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Roof-mounted solar thermal (ST) and photovoltaic (PV) systems must be designed and installed to withstand the maximum wind loads expected during their lifetime. This means that designers and specifiers of such systems need an understanding of the wind speeds expected at the site, and the applicable pressure coefficients, for both new build projects or where the systems are to be retrofitted to an existing roof.
Article from Timber 2016 Industry Yearbook
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Trussed rafters must be braced to create a rigid and stable roof structure. If the bracing is omitted, wrongly positioned or badly fixed, it may result in distortion or failure of individual trusses or in some instances the whole roof.
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