9.3 - Offloading, hoisting and storage
During offloading and hoisting, care should be taken to avoid damage to the decking sheets caused by excessive pressure from slings or chains. Decking bundles should NEVER be dropped (in any way) from delivery vehicles.
It is normal for the packs to be loaded directly from the delivery vehicle onto the steel frame. Whilst loading packs onto the steel frame, consideration should be given to pack positions to avoid overloading.
Where packs of roof deck are to be installed onto cold-rolled purlins, packs should be loaded out directly above the hot-rolled supporting beams.
Packs are to be loaded out to ensure equal bearing is achieved at both ends of packs.
In all instances packs must have a minimum bearing of 50mm onto supports at both ends. Single span packs will have a longer bottom sheet and should be loaded out with a minimum of 100mm bearing.
Decking does not store well for long periods of time when exposed to the elements. When necessary to store deck packs at ground level for prolonged periods, the packs should be seated on timber bearers to avoid direct contact with the ground, covered with a waterproof breathable membrane to avoid exposure to rain and angled to allow any condensation to drain.
Typically, a prolonged period is greater than 6-8 weeks, but will be dependent on the location particularly in an aggressive environment.
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