There is debate over the effectiveness of lightning rods.
Some say they're necessary and some say they're more dangerous than not having anything because of the tremendous heat when lightning does strike them.
Others argue that they're not an effective way to protect anything because lightning capillaries out all over the place when it strikes.
I have no idea. I assume there is some truth in all of these arguments. I have seen melted shingles under the brackets and the connecting wires. I have also seen such poor installations by "professional" installers that they were swinging off of the roof within a few years.
The most effective way to protect appliances and electronics is to unplug during storms.
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