5. Roofing Material Selection

5.1 Ensure the roof materials are suitable for application. It should be robust enough for the expected / intended traffic. The thicker the roof sheets (BMT - base metal thickness) the more robust generally and the Corrugated profile roofs are not very robust, trim deck is moderately robust and Kliplok roofing is very robust. Roof sheeting with a BMT less than 0.42mm prior to painting is not permitted for use under any circumstances. Ensure the sheeting contains the correct marking or documentation.

5.2 Roofing/walling within 1000m of a marine/harsh/heavy industrial environment is to be as required by the manufacturer (see chart below). ALWAYS check with the manufacturer and request a specification and draft warranty before the work commences.

5.3 Review the policy for steel protection for further details.