If you are deciding on a new roof, maybe you should just stay clear of these types of metal roofs. If your metal roof is too rusted, a replacement may be a more practical choice for you. Contact the guy or company that installed the roof, if he or they are still in business and they should be able to scrape, sand or grind off the rust and repaint the surface.

If you’re already dealing with rust, don’t worry. We have seen steel roofs with rust in as little as 3 years from the time it was installed. Many steel roofs are warrantied for 60 years, but they DO NOT say nor do they warrant that the roof won’t rust. They try to mitigate the issue by saying their coatings (many of them use kynar) will protect the product and its warranty not to fade for about 30-35 years. That’s why roofing manufactures that use steel in their roofing products don’t offer a warranty against rust. Galvalume products are steel panels coated with a corrosion-resistant aluminum alloy. Galvanized metal is steel roofing coated with a thin layer of zinc oxide. Roofers coat the base metal with anti-rust or anti-corrosive coatings. This is what roofers do to try to keep rust at bay. There are manufacturing methods that attempt to prevent corrosion from taking over, through. On its own, steel in any form is not naturally resistant to rust. The good news is, metal roofing companies like Classic Metal Roofs offer options like aluminum, zinc, and copper that don’t rust at all. Preventing rust is understandably a big concern for homeowners considering metal roofing. Some metals such as steel, galvalume, and galvanized roofing materials are prone to rust when exposed to moisture. Metal roofing is a great solution for the replacement of temporary roofing material such as asphalt shingles and cedar roofs. Septem| By Mike Gonet | Filed under: Blog, Metal Roofing Preventing Rust on Metal Roofs: What Roofers Do

Rusted galvanized roofing