How Long Does a Metal Roof Last?

When it comes to selecting a roofing material, you want to make sure you’re getting the best quality for the price. Metal roofing can be an excellent choice if you’re looking for a roof that’s going to last. Popular for commercial roofing and some residential applications, you may be considering getting a metal roof of your own. In this blog post, we’ll look at the average lifespan of a metal roof. We’ll also go in-depth on the average lifespan and features of types of metal roofs, factors that can affect the lifespan of your metal roof, and how you can get on for your building.

So, let’s get into it!

How Long Does a Metal Roof Last?

On average, a well-maintained metal roof can last you anywhere from 30 to 70 years, but this is a very broad estimate. Depending on the type of metal roof you have, how well it is maintained, the environment you are in, and more, your metal roof may have a very different lifespan than another one. 

Different materials, installation methods, maintenance, and coatings all play a role in how long your metal roof will last.

Types of Metal Roofs and Their Lifespans

There are a few different types of metal roofs that are common, and they all can vary in pricing and how long they may last.

How Long Does a Standing Seam Metal Roof Last?

Standing seam metal roofs are constructed using interlocking panels of metal that run vertically along the roof’s slope. They can be made from different metals such as aluminum (the most common), zinc, and steel. This type of metal roof is known for its sleek appearance and durability when compared to traditional shingles, which comes from its ability to naturally expand and contract with temperature changes. You should get at least 30 years out of a standing seam metal roof. Depending on conditions and maintenance, this metal roofing type can last up to 60 years.

How Long Does a Screw-Down Metal Panel Roof Last?

Screw-down metal panel roofs are exactly what they sound like - they are constructed using metal screws that screw the metal panels into the frame. This leaves the fasteners exposed on the outside of the roof. With regular maintenance, screw-down metal panel roofs can last 30 to 50 years, but this is largely dependent on environmental conditions. This type of roof is not able to expand and contract the same way a standing seam metal roof can, which can impact its ability to withstand the elements in some cases.

The lifespan of a screw-down metal panel roof is also dependent on regular maintenance. Their screws need to be changed every 10-15 years to ensure you get the most out of your roof.

How Long Does a Corrugated Metal Roof Last?

Corrugated metal roofs are thin, ribbed sheets of metal are screwed into a frame, similar to screw-down panels. These metal roofs are known for their traditional aesthetic and are common in both residential and commercial applications. A well-maintained corrugated metal roof can last anywhere from 30-45 years, provided the metal is properly coated with materials that increase its durability.

Factors that Affect a Metal Roof’s Lifespan

In addition to the type of roof you have installed, there are other factors that influence how long your metal roof will last.

1. Maintenance: Routine maintenance of your roof is one of the best ways to get the most time out of it. Cleaning debris from your roof, checking for loose screws or panels, and fixing minor damage are key to maximizing the longevity of your metal roof.
2. Climate: Different climates and weather conditions exert different kinds of stress on metal roofing, which can affect its durability. Frequent temperate fluctuations cause the metal to expand and contract, which can compromise its structure over time. Ensuring your roof is properly ventilated can help combat this. There is also the risk of severe weather damaging the metal panels of your roof. Some types of metal roofing are better suited for withstanding severe weather like hail and wind than others.
3. Coatings and Finishes: Metal roofs are usually coated or finished to enhance their durability and appearance. Galvanized coatings or certain types of paint can be used to achieve this. These extra layers protect the metal from the elements and prevent rust, corrosion, and UV damage. High-quality coatings and occasional re-coating can extend the lifespan of your metal roof.

Conclusion

Metal roofing is quite durable, and with proper maintenance, you can get decades of time out of it and keep your building protected. Understanding the differences between metal roofing types and knowing other factors that can affect your roof’s lifespan can help you make an informed decision about the best roof for you. Be sure to consider proper coatings for your metal roof, and keep up with routine inspections and maintenance.

If you’re thinking of investing in a metal roof for your building or home, give Statewide Roofing a call. We install all kinds of roofing for all kinds of homes and businesses, all over the state of Oklahoma. Take a look at our commercial and residential services to learn more. Contact us for a free estimate and let us know what you’re looking for. We’re happy to help!