How Sea Salt Accelerates Zinc Degradation on Coastal Roofs
Properties across coastal Perth, particularly throughout the Rockingham coastline from Safety Bay to Shoalwater, contend with some of the harshest marine microclimates in Western Australia. Metal roofing systems rely heavily on sacrificial zinc coatings—such as those found on traditional galvanized steel and modern zinc-aluminium alloys—to shield the structural core from oxidation. While zinc naturally provides exceptional long-term corrosion resistance in inland environmen