Typically, an aluminum roof can last anywhere from 40 to 70 years, depending on various factors, including installation quality, environmental conditions, maintenance, and the specific alloy used in the roofing material. One of the main advantages of aluminum roofing is its resistance to rust and corrosion, making it an ideal choice in coastal or high-humidity areas where traditional roofing materials may degrade more quickly. Aluminum does not rust like steel, and its natural oxide layer protects it from corrosion, ensuring a longer life.