The roofing shall be in IMETAL IM-SEAM™ roofing in continuous lengths providing an interlocking seam profile with tapering and curving flexibility to deliver superior aesthetic roof.
All building products need to be checked for compatibility with adjacent materials. These checks need to be for both direct contact between materials, and where water runs from one material to another. The following guidelines generally avoid material incompatibility:
For zinc-aluminium alloy coated steel, avoid copper, lead, green or treated timber, stainless steel and mortar or concrete.
All fastening screws must conform to AS3566 - Class 3. They are to be hexagon headed and for roofing must be used with sealing washers. For connecting to purlins or top hats use: