Debunking the Myth: Does a Steel Roof Make Your House More Vulnerable to Lightning?

April 20, 2023

When considering a metal roof for your home, you may have encountered some opposition or concerns, especially surrounding the idea that a steel roof might increase your home's vulnerability to lightning strikes. This widely held belief has caused many homeowners to hesitate when exploring metal roofing options. However, not only is this belief unfounded, but you'll also discover that the truth is quite the opposite.

In this blog post, we'll explore the facts about metal roofs, dispel the myth that they make your home more susceptible to lightning strikes, and discuss the numerous advantages of choosing a steel roof for your home. By the end of this post, you'll have a better understanding of why a metal roof is an excellent option for your home and why it can actually improve the safety of your home during a lightning storm.

Do Metal Roofs Increase the Likelihood of Lightning Strikes?

A common concern among homeowners is that installing a metal roof might increase the likelihood of their home being struck by lightning. However, this is simply not the case. In fact, metal roofing materials, including steel, do not increase your home's chances of being struck by lightning at all.

Steel as an Electrical Conductor and Noncombustible Material

Steel, as well as other metal products used in roofing, are both electrical conductors and noncombustible materials. This makes them one of the safest construction materials available on the market. When lightning strikes, the metal roof provides a quick and efficient exit route, minimizing the overall impact of the lightning on your home.

Roof Material's Impact on Lightning Strike Chances

In essence, the material of your roof does not have a significant influence on the chances of your home being struck by lightning. However, should your home be hit by lightning, a metal roof can actually work to your advantage by providing added protection and reducing potential damage.

The Protective Advantages of a Metal Roof in Lightning Storms

So, rather than increasing the risk, a steel roof can actually offer greater safety and peace of mind during lightning storms. By efficiently conducting the electrical charge and minimizing the impact of a lightning strike, metal roofs can prove to be a smart and reliable choice for homeowners in regions prone to storms and lightning.

The Truth Behind the Metal Roof Lightning Misconception

The misconception that metal roofs make your home more vulnerable to lightning strikes has persisted for some time. To dispel this myth, it is important to understand the reasoning behind it and the actual effect of a metal roof during a lightning strike.

Metal as an Electrical Conductor

Metal is an excellent conductor of electricity, which is a fact that most people are aware of. This knowledge has led many to assume that a metal roof would attract lightning and make their home more susceptible to a strike. However, this assumption is incorrect.

The Protective Effect of a Metal Roof

In reality, a metal roof acts as a protective shield for your home during a lightning strike. When lightning strikes, it seeks the path of least resistance towards the ground. Since a metal roof is not grounded like a lightning rod or a tree, there is no reason for it to attract lightning.

How a Metal Roof Directs Lightning Away from Your Home

If, by chance, your home is struck by lightning, the metal roof acts as a conductor that quickly directs the lightning away from your home, preventing significant damage and reducing the risk of fire. By providing a safe and efficient pathway for the lightning to travel, a metal roof can actually increase the safety of your home during a storm, contrary to the popular misconception.

Should You Choose a Metal Roof for Your Home?

When deciding if a metal roof is the right choice for your home, it's crucial to consider the numerous benefits that come with this type of roofing material. Steel roofing offers advantages in terms of longevity, energy efficiency, wind resistance, fire safety, maintenance, and cost, as well as safety during thunderstorms.


Metal roofs have a significantly longer lifespan than traditional asphalt shingle roofs. While asphalt shingle roofs typically last for 20-30 years, metal roofs can last upwards of 50 years or more, making them a more durable and cost-effective option in the long run.

Energy Efficiency

Steel roofs are known for their energy efficiency, as they reflect the sun's rays and provide added insulation. This helps to lower cooling costs during the summer months and keeps your home warm during the winter, reducing your overall energy consumption and saving you money on utility bills.

Wind Resistance

Metal roofs have a higher wind resistance than other roofing materials, making them an excellent choice for homes in areas that experience strong winds or storms. Their durability ensures that your roof can withstand harsh weather conditions and protect your home from potential damage.


An added safety feature of metal roofs is their fireproof nature. This is especially beneficial in regions where wildfires are a risk, as a metal roof can provide an extra layer of protection for your home in the event of a fire.

Maintenance and Cost

Steel roofs require less maintenance and upkeep compared to other roofing materials. While the initial cost of a metal roof may be higher, the long-term savings on maintenance and replacement make it a wise investment. Calculating the cost of ownership over the lifetime of the roof reveals that steel roofs can pay for themselves over time.

Safety During Thunderstorms

As we've discussed throughout this blog post, a steel roof does not make your home more vulnerable to lightning strikes. In fact, it can provide added protection by efficiently conducting lightning away from your home, reducing potential damage and risk.

By considering all these factors, you can make an informed decision about whether a metal roof is the right choice for your home.


Armed with the knowledge debunking the myth that steel roofs make your home more vulnerable to lightning strikes, you can confidently consider a metal roof as a viable option for your home. With its numerous benefits, such as durability, energy efficiency, wind resistance, fire safety, low maintenance, and cost-effectiveness, a metal roof can be a smart investment that provides both long-term savings and peace of mind.

If you need a new roof or are considering replacing your existing one, don't hesitate to contact Smart Builders Group, Inc.. For over a decade, we've been providing the greater Minneapolis area with comprehensive roofing and exterior services. Our professional contractors are ready to help you make the right decision for your home, whether you need a roof repair or are shopping for a new roof. Contact us today to explore your options and discover how a metal roof can benefit your home!

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