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What Happens When Lightning Strikes a Metal Roof?

Jan 28


You may have asked yourself the following question if you are considering installing a metal roof on your property. With the current market, metal roofing stock is at an all-time high, making it a popular choice for homeowners. However, it is a common concern, as metal is often associated with conducting electricity. This conductivity means that a roof made of metal is the most resistant to lightning strikes.


When it comes to durable roof replacement options, metal roofs stand out as a top choice. Not only are they resistant to lightning strikes, but they can also conduct lightning energy safely into the ground, protecting your home and loved ones. If you live in an area prone to lightning, consider a metal roof installation by a reputable roof replacement contractor.

What happens to non-metal roofs that are normal?

A non-metal roof may seem safer at first glance. The opposite is true. The lightning that causes fires is one of the most dangerous effects of lightning. Lightning strikes flammable roof materials like asphalt shingles or wood shakes and instantly ignites. This can set your house ablaze. 


The lighting can also "jump" between walls and floors, as it seeks to descend, creating danger for you. If lightning finds your electrical wiring, it may use this to reach the ground. This can cause potentially dangerous power surges and damage to your equipment.

What happens to metal roofs during a lightning strike

Lightning that strikes metal roofs can, however, be contained and stopped immediately. Aluminum rod protection systems are used to protect metal roofs from lightning strikes. These systems spread the energy of the lightning contact and deliver it safely to the ground. This allows lightning to immediately find a path of least resistance. 


It does not mean that it can enter your home or attack your electrical wiring. A metal roof can protect against lightning strikes' chaotic nature by providing 'hot points' to channel the lightning energy safely. A metal roof's multi-layered steel is designed to resist lightning strikes, protecting the house below from any storms.

What other ways can a metal roof help me protect my home?

Metal roofing is the best option for homes in areas with extreme weather, such as lightning strikes. Many traditional roofing materials can be highly flammable if they are not used properly. Metal roofing is exempt from this. There is no chance that a spark from a nearby fire will reach your roof and spread to your home. 


Metal roofing is also extremely durable and can protect your home against wind speeds up to 140 mph without corroding. Metal roofing is long-lasting and will not be affected by weather changes. This allows you to rest easy knowing that your home will remain protected for many years to come. 


In conclusion, when lightning strikes a metal roof, it can cause damage to the roof itself, as well as any electrical systems connected to the building. The intense heat and energy from the lightning strike can cause melting and warping of the metal, as well as start fires. Additionally, the electrical current from the lightning can damage or destroy any electrical systems connected to the building, such as wiring or appliances. It is important to have a properly grounded and bonded metal roof, as well as proper lightning protection systems in place, to minimize the risk of damage from lightning strikes.