Set out a flat area and supporting dunnage to ensure sheets will not be damaged by site debris.
When unloading by crane, ensure the lifting boom has a spreader bar and that tightening strops do not damage sheet laps. Slings or strops should be nylon with leather sleeves to prevent fraying or cutting and damaging slings. Single slings and chains should not be used to lift packs of cladding.
When unloading by hand, lift each sheet off the stack without sliding over under sheets, as that may cause damage to the paint.
The person receiving the roof is responsible for identifying a safe and convenient landing point for the load, in association with the main contractor. The mobile or truck mounted crane operator has the duty of declining any loading instruction which he deems unsafe. Under no conditions should the load be traversed directly above any person
Bundles or packs of roof cladding must remain banded when being lifted by a crane.
They must be placed adjacent to the portal frame and not mid-span on the purlins. Bundles must be placed so that their weight is spread over the entire area of the roof and should be positioned with the laps in the direction of laying.
Workers receiving a bundle of roof cladding on the roof must have sufficient mobility to avoid the load, and use tag lines to control the swinging of the load while it is out of reach.
Packs must be securely fixed to the structure.