How to Know If Your Lightning Rod Is Actually Protecting Your Home (Hint: Most Aren't)
Having a lightning rod on your roof isn't the same as having a working protection system — here's how to tell the difference before a storm does it for you.
The Assumption Worth Questioning
Many homeowners assume that because there's a rod on the roof, the property is protected. In reality, a lightning rod is only one component of a larger system, and that system can deteriorate or fail without the rod itself ever looking obviously damaged.
Why Systems Quietly Stop Working
Corrosion from weather exposure, an original installation that wasn't done quite right, physical damage from storms, and simple neglect are the main reasons a system stops functioning the way it's supposed to. None of these require a direct strike to happen — they build up gradually.
Sign: Visible Damage to the Rods Themselves
Bent, cracked, or rusted rods — especially at the highest points of the structure where they're installed — are a clear indicator that they may no longer function as intended.
Sign: Frequent Power Surges or Electrical Issues
If you've noticed more power surges, tripped breakers, or damaged electronics, it may mean the system isn't properly grounded or isn't diverting energy the way it should.
Sign: Deteriorated Grounding Components
Moisture, rust, and general wear can compromise the grounding electrodes over time. If the system hasn't been checked in years, corrosion at this level is easy to miss without a professional inspection.
Sign: Missing or Disconnected Cables and Connectors
Cables and connectors linking the rods to the grounding system can loosen or go missing on older systems. An inspection confirms whether every component is intact and properly connected — and flags anything that needs repair.
What an Inspection Actually Involves
A proper inspection includes a visual check of the rods for damage or corrosion, testing of the grounding system for proper connection, and verification that the system meets current safety practices, including those reflected in standards like NFPA 780 and UL 96A. Left unaddressed, these issues can lead to repair costs that run into the thousands — a typically annual inspection is a much smaller investment. Call RS Lightning Protection at 1-866-415-2231 to schedule one.
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