Contractors specializing in painting metal roofing Singapore must be skilled in different types of metal substrates. The most common are galvanized steel and Galvalume (a mix of zinc and aluminum). Each requires a specific type of primer and surface preparation to ensure maximum bond. For example, a freshly installed Galvalume roof often requires a "weathering period" or a specialized... https://kkroofspecialist.com.sg/painting-metal-roofing-singapore/