How long does a metal roof last?

Many homeowners choose metal roofs because of their strong durability and long service life. Compared with other roof types, you only need to install the metal roof once during the ownership of the house. Then let’s take a look at the service life of several types of metal roofs:

The service life of vertical joint metal roof:

Standing seam metal roofs are mostly used in factories and have a strong industrial style. In recent years, some companies have innovated it, and more shapes have appeared, but the overall style is biased towards metallic cool colors. When properly installed and maintained, the service life of the standing seam roof is 50 years.

The service life of corrugated metal roof:

The life expectancy of corrugated metal roofs is the shortest of all metal roof types. Its service life depends on whether it is coated with an industry-standard anti-rust finish, and the quality of the paint determines its service life. Moreover, its maintenance is troublesome and costly, and its service life is between 30 and 60 years.

The service life of stone-coated metal roof:

The stone-coated steel roof panel uses aluminized zinc steel as the base material, which has high strength and corrosion resistance. The surface is coated with a colorful stone coating, with a variety of styles. It requires almost no maintenance and can be used for 50 years when properly installed.

The most important thing is that JHL copied the appearance of Roman roof tiles, slate tiles, wood shingles, and asphalt shingles, which can be matched with any style of the house. And the stone coating is not afraid of collision.

Shingle stone coated metal roof tile
Shingle stone coated metal roof tile

Factors affecting the life of metal roofs

Most metal roof panels are coated with Kynar 500 coating to prevent the metal from being corroded by external factors. Other excellent paint coatings also have the same effect. But if the metal roof panel you use is coated with poor-quality paint, it will shorten its lifespan.

Whether the paint coating is protected during installation

One of the correct installations that have been emphasized many times is the protection of the coating. Any scratches and dents will expose the metal material to the air, which will cause the metal material under the coating to rust, just like the scratches of a car will quickly rust.

Weather environment

Any weather that causes dampness will affect the service life of the metal roof, hail, high temperature, rain, snow, and hurricanes. But an excellent paint coating will protect the interior very well, as long as the homeowner paints it regularly. It is best to look for a professional metal roof painter, or you can choose a metal roof that never needs to be painted: stone-coated steel roofing.

The service life of several common metal roofs

How long can the galvanized steel roof last?

Galvanized steel is made by combining protective zinc with high-strength steel. Zinc can increase the service life of steel metal roofs, which can be used for 30 to 50 years when properly installed.

How long can the copper metal roof last?

The copper roof can be used for up to 200 years with minimal maintenance. But its high price makes many homeowners choose other types of metal roofs.

How long can the zinc metal roof last?

Believe me, although its service life can reach 80 years, its price will make you feel that it is not worth it.