Most houses I’ve looked at don’t even have them (at least visibly) but I’ve seen them on office buildings. Doesn’t the lightning still burn the house/area the rod is attached to?
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The rod is made of a highly conducting material like copper. The rod is attached to wire to take it to ground. Usually there are more than one wires. This is what makes it safe is the wire giving a safe path to ground. Sometimes the wires become disconnected, and it can then cause fires when hit
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