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Thermal Movement
Allow a minimum 5mm clearance at the end of each 5 metre length
of profile, in order to accommodate expansion. (Foiled 8mm
expansion)
Windloadings
Maximum windloading based on 600mm batten spacings
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100mm cladding... 2000Pa
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150mm cladding... 1350Pa
For increased windloadings reduce batten spacings and fixing
centres and check with qualified engineer. As a guide, 400mm
batten spacings should be considered for applications over
2 storeys.
Fixing to Non Weatherproof Substrates
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For applications involving non weatherproof
substrates (e.g. timber stud wall) a vapour permeable
water barrier must be installed behind the battens and
cladding.
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When used as a decorative facing on a
weather tight masonry wall, a water barrier is not generally
necessary.
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The same applies for fixing distances.
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