Lightning rods are made of metal, so it must mean that metal roofs attract lightning as well, right? Unfortunately, this is a widespread myth.
For What Lightning Rods Are Used?
First off, lightning rods are intended as a precautionary measure against lightning, not something that attracts them. It channels the current electrical current into the ground to prevent any damage to the building. While lightning strikes remain unpredictable, scientists have singled out several factors that influence the occurrence of lightning strikes, none of which include metal’s composition.
The Timing and Location of Lightning Strikes
Geography, topography and the movement of storms are some of the known factors that can influence the timing and location of lightning strikes. However, there are still a lot of unknowns when it comes to studying their occurrence. As such, until more information is found, any similarities between incidents involving lightning strikes are coincidental.
Metal Roofs
However, even if there’s no way to accurately predict lightning strikes, you still need to take precautions to safeguard your home against such occurrences – and the solution may even surprise you.
Contrary to popular belief, metal roofs can protect your home. Structural damage stemming from lightning strikes depend on the building material’s resistance to lightning; the less its resistance to lightning, the less likely a building will suffer damage. Metal, a highly conductive material, can safely direct the current to the ground, minimizing potential damage. Just make sure roof replacement contractors, or any general contractor or electrician for that matter, have made sure your home is properly grounded.
Conversely, this means that there is some truth to the advice of avoiding trees during thunderstorms. Wood, which has poor conductivity, would likely suffer considerable damage if it gets hit by a lightning strike.
Lankford Roofing & Construction LLC, a contractor with over eight decades’ worth of experience in the industry, offers roof replacement services. To get a free estimate, call (903) 465-7677 or (580) 920-1433, or leave us a message on this form. We serve homeowners in Denison and Sherman, TX.
