When a metal roof is used on a building, it seems to heighten people's awareness of lighting, and some question whether or not the use of metal roof increases the risk of a lighting strike. Metal roofing does not in any way increase this risk of lightning.
Although metal conducts electricity, lightning is not drawn to it. Lightning typically strikes the highest object in an area. That is why it often strikes trees, power poles, towers and antennas. If you home is hit by lightning, your metal roof will disperse the energy safely through the structure. Since the metal roofing is not flammable, it is a low risk and a desirable roofing option where severe weather is concerned, especially for lighting.