Lifespan Galvanized Metal Roof

When the base materials oxidize they create a protective patina.

Lifespan galvanized metal roof.

Materials used in corrugated metal roofing corrugated metal roofing is normally made from metals such as stainless steel copper zinc and aluminium. While other roofing materials typically need replacement every 10 to 20 years properly installed steel roofs should last as long as you own your home. Metal roofs are attractive durable and can last up to 70 years. Roofing of this kind has many advantages over asphalt roofs and has a life span from 20 to 100 years depending on grade.

Unpainted galvalume has a lifespan up to 40 years. All coated steel materials however are vulnerable to corrosion at field cut edges although galvalume is the least affected table 2 10 below click to enlarge any image lists the advantages drawbacks compatibility and life expectancy of galvanized steel roofing aluminized steel roofing galvalume aluminum copper and zinc metal. The galvanized roof depending on climatic factors might show a light rust hue. This is especially true when you invest in a metal roof engineered from galvanized steel.

The expected lifespan of a metal roof is 30 to 50 years in florida with an average of 40 years. The most common metal roof material we see in this area is galvalume which is a steel sheet with an electrolytically applied coating of a combination of zinc and aluminum to extend the lifespan.