AS 1562

Australian Standard AS 1562 is the primary technical standard governing the installation of metal roofing in Australia. It is divided into two parts: AS 1562.1 covers metal sheet roofing (including Colorbond, Zincalume, and other profiled metal products), while AS 1562.2 covers translucent sheet roofing (polycarbonate and fibreglass). The standard provides detailed requirements for minimum roof pitch, sheet overlap distances, fastener types and spacing, flashing design, and structural support spacing. AS 1562.1 is particularly important for specifying the screw pattern and fixing requirements for different wind-load zones on the roof. It works in conjunction with AS 4055 (Wind Loads for Housing) and AS/NZS 1170.2 (Structural Design Actions — Wind Actions) to ensure that the roof fixing system can resist the design wind loads for the specific building site. The standard also addresses issues such as thermal movement, capillary action prevention, and minimum side-lap and end-lap dimensions. In Gippsland, compliance with AS 1562 is mandatory for all metal roofing installations. Town & Country Roofing follows the requirements of AS 1562 on every project, ensuring that screw patterns, overlaps, flashings, and structural fixings meet or exceed the minimum standard for the site-specific wind loading conditions. This compliance is particularly important for insurance purposes, as non-compliant installations may void building insurance coverage for storm damage.