The type of metal on the roof influences the paint system choice and preparation methods employed by Singapore contractors. Aluminium roofs, while inherently rust-resistant, require specialized primers (like chromate-free etch primers) to ensure paint adhesion to the smooth, non-ferrous surface. Galvanized steel roofs, which often develop a white rust layer over time, need proper weat... https://kkroofspecialist.com.sg/painting-metal-roofing-singapore/