The roofing/walling/ceiling shall be 0.50mm TCT in IMETAL IM-SPAN decking in continuous lengths with trapezoidal ribs 18mm high. Sheeting material shall be protected steel sheet to AZ150 zinc-aluminium coating with infrared baked paint film of selected colour from COLOURCOIL® range.
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 spans at minimum 1200mm take account of normal foot traffic and wind resistance including local pressure zone effects. The rib height is 18mm while the effective cover width is 750mm.
All fastening screws must conform to AS3566 - Class 3. For connecting to purlins or top hats use: