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Should You Ground Your Metal Roof?

Should You Ground Your Metal Roof?

While metal roofing is a popular choice in both residential and commercial construction, some homeowners decide to have theirs grounded, much like how it’s done in other metal or electrical applications. Depending on where you live, this may be mandated, but even if it’s not grounded, there’s no additional risk. The chances of metal roofing getting struck by lightning is just as much as any other type of roofing. 

Metal Roof

As you plan out your metal roofing project, you might be thinking about grounding your metal roof. But is it really necessary? Here’s what roofing contractor Mascon, Inc. has to say.

Check Local Building Codes First

Metal in itself is already a highly conductive material for electricity and with a full roofing system, a lightning strike would already ground out through the rest of the structure. This doesn’t affect or damage anything in the interior of your home, so there’s usually nothing to worry about.

However, your local area may likely mandate aground. But even if it isn’t, it only assumes that other building codes are being followed. For instance, only PVC piping is usually allowed to extend from the interior of the home up to through the metal roof. The reason for this is if metal piping is used, it can become a serious lightning hazard to the home’s inhabitants. When lightning hits and the roof isn’t grounded, it can travel down the metal pipe and cause damage to the interior and injury to the inhabitants.  

Other Things to Consider

If you’re still not sure whether or not you should go for a metal roof, you can try evaluating which factors increase the chances of a lightning strike in your area. From there, you can plan outbuilding strategies with your trusted roofing contractor. Here’s what you need to consider:

  • Frequency – Living in an area that’s prone to thunderstorms means your home will be more prone to lightning strikes. Make sure to consider this when having a metal roof replacement.
  • Proximity to Other Features and Structures – You need to consider your home and the geographical features around it, such as trees or rock outcroppings, as they’ll likely serve as protection during a storm. 
  • Topography – Lightning is attracted to high points, and if your property has a combination of hills and flatlands, it will be more prone to lightning strikes than those in the low-lands. On the other hand, it’s important to keep in mind that lower-lying land doesn’t drain water as well as being on a higher area.

If you’re looking for a reliable residential roofing contractor, Mascon, Inc. will get the job done efficiently. Contact our professional services at (512) 376-5096 or fill out our contact form. We serve Austin and surrounding TX areas.