The Federal Highway, light rail and open ground to the north
Gungahlin is served by the Gungahlin Drive Extension, the Federal Highway and the light rail line down Northbourne Avenue. The district sits on open ground at the northern edge of Canberra, and there is often little to slow the wind between paddocks and rooftops.
Wind can lift unsecured sheets and ridge capping, and hail has a clear path across an open estate. Steel roofs also expand and contract through the hot days and frosty nights typical of the region, which can work fasteners loose over time. These details explain why many local callouts involve flashings, screws and capping rather than whole roofs.
