The expected lifespan of a metal roof is 30 to 50 years in florida with an average of 40 years.
Lifespan galvanized metal roof.
Metal roofing runs the gamut of price and quality starting around 115 per square for standing seam panels in aluminum or steel.
The galvanized roof depending on climatic factors might show a light rust hue.
Materials used in corrugated metal roofing corrugated metal roofing is normally made from metals such as stainless steel copper zinc and aluminium.
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.
Metal roofs are attractive durable and can last up to 70 years.
This is the result of the zinc layer wearing away leaving the steel substrate exposed.
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.
This is especially true when you invest in a metal roof engineered from galvanized steel.
When the base materials oxidize they create a protective patina.
Unpainted galvalume has a lifespan up to 40 years.