The metal roofing alliance recommends g 90 galvanized steel for roofing which has 90 ounces of zinc per square foot.
Galvanized metal roof lifespan.
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.
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.
When the base materials oxidize they create a protective patina.
What s more many metal roofs feature space age cool roof paint technology that reflects the sun s radiant heat away from your home.
Roofing of this kind has many advantages over asphalt roofs and has a life span from 20 to 100 years depending on grade.
This is especially true when you invest in a metal roof engineered from galvanized steel.
Metal roofing runs the gamut of price and quality starting around 115 per square for standing seam panels in aluminum or steel.
And whereas many other roof options need to be replaced every 10 to 20 years a galvanized steel roof can last for decades when properly installed.