A metal roof will absolutely not increase the likelihood of lightning striking your home. However, if your home were hit by lightning, your metal roof would disperse the energy safely throughout the structure. Since metal roofing isn't combustible or flammable, it's a low risk and desirable roofing option where severe weather, especially lightning, is a concern.
This may surprise you, but metal roofing is often quieter than an asphalt shingle roof. When installed with solid sheathing, a metal roof on your home will actually silence noise from rain, hail and bad weather, many times much better than other roofing materials.
Today's metal roofing systems are built to last. Steel metal roofing has a "metallic coating" made of either zinc or a combination of zinc and aluminum. This metallic coating prevents rust from forming and is bonded to the steel at the factory. Paint is then applied over the metallic coating to provide the long-lasting color homeowners desire.
In most cases, a metal roof can withstand decades of abuse from extreme weather like hail, high winds, and heavy snow. A typical hailstorm will not dent your metal roof. Today's systems also have a 120-mph wind rating (equal to an F2 tornado), meaning your metal roof is also safe from wind gusts that can accompany hailstorms.
Many people think you can't (or shouldn't) walk on a metal roof, but the truth is that you can safely walk on any metal roof without damaging it. To ensure your safety, we recommend you talk to your installer or roof manufacturer first. They will have the details on how to walk on the particular roof you have, based on the style you chose and your roof pitch.