The roofing/walling/ceiling shall be 0.50mm TCT in IMETAL IM-EUROSHINGLE™ decking. Sheeting material shall be protected steel sheet to AZ150/AZ200 zinc-aluminium coating with infrared baked paint film of selected colour from COLOURCOIL® range.
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.
The colour and materials specification is available from COLOURCOIL® brochures.
The roofing strength is dependent on the underlay, which is IMETAL IM-EUROSHINGLE™ or plywood.The span at minimum 600mm takes into account of "normal" foot traffic and wind resistance including local pressure zone effects. The top skin roof shall be anchored underlay through the bituminous felt.
All fastening screws must conform to AS3566 - Class 3. They have to be hexagon headed and for roofing. It must be used with sealing washers. CLIPS are made of either stainless steel or zinc/aluminum steel: