A metal roof does not attract lightning. The National Weather Service identifies height, shape, and isolation as factors affecting where lightning strikes. Metal conducts electricity, which is why contact with conductive objects during a storm can be dangerous.
Roofing is not a lightning protection system
Do not assume that a metal roof automatically grounds a strike or makes the building safe from lightning. A lightning protection system is a separate design question for a qualified specialist. Roofing material alone is not enough to establish that a particular building is protected.
Stay inside during a thunderstorm
Postpone roof inspections and outdoor work when thunder is heard. Follow National Weather Service lightning safety guidance and stay away from windows, plumbing, and connected electrical equipment during the storm.
Compare roofing on the details that matter
When choosing metal roofing, review the exact system, installation requirements, finish, appearance, and written warranty. Ask how penetrations and transitions will be detailed for your building. Discuss roofing options with Smart Builders; use a lightning protection specialist for the electrical protection assessment.