How Long Can Metal Roofs Last

Metal roofs are a great option when looking for a new roof for your home or business. Metal roofs are chosen for their energy efficiency, low maintenance, and durability. They are very versatile and can be used in any climate type and are easily customizable to suit your needs. Although the initial cost of metal is higher, the life-cycle costs are considerably lower than conventional materials. It offers better life cycle return-on-investment and metal construction products are protected by highly durable paints and coatings that now ensure a service life of approximately 40 years. Also, painted metal roofs maintain 95 percent of their reflectance value over time.

Steep slope metal roofs, which are roofs with pitches of 3:12 ratio or greater, are favored by architects and building and home owners not only for their aesthetic appeal, but they are light weight, low maintenance, and longer than average service life. Steep slope metal roofs accelerate water run-off and reduce the likelihood of a build-up of debris and mildew. They are less likely to experience staining than non-metal steep slope roofs. The durability and reliability of steep slope systems have led metal roof manufacturers to most often warranty their products for 20 to 40 years. They can even be expected to last upwards of 60 years.

Low slope structural roofing is generally used on roof pitches ranging from 1/4:12 to 3:12 ratio. Low slope metal roofs also have a long service life, low life cycle cost, sustainability, recyclability, and have low maintenance requirements. These metal roofs are light weight and resistance to wind. Low slope metal roofs are not prone to the degradation experienced by other types of roofs, enabling them to better resist the wind, rain, snow, hail, and other elements. This, in turn, results in an extremely low annual operating cost and a much longer life span. Almost all low slope roof materials are protected by high performance, durable metallic coatings. Metal roof manufacturers most often warranty these roofing products for 20 to 40 years, as well.

So, as exhibited, metal roofs can be expected to last at least 2 to 3 times longer than a regular roof. The average life of an asphalt roof is approximately 12 to 20 years and that lifespan can be shorter depending on the pitch of the roof and the climate. With all of this in mind, metal roofs are one of the best options when considering roofing options with the most promising longevity.

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