Quote:
Originally Posted by Lightning
The ufer grounding system is for electrical safety to prevent electrical shock - and is not designed to handle an indirect and certainly not a direct lightning strike. If lightning is your concern then you should have a lightning protection system installed by a UL listed installer. Door-to-door sales installers are not UL listed so you will have no idea if the system was installed to NFPA780, the national standard on lightning. Listed installers will drive a sufficient number of ground rods to the proper depth - usually 8 ft. copper clad rods (not rebar) 2 ft below grade beyond the drip line from the roof. In some cases they may need to go as deep as 30 ft. - but thats the installers problem - not yours.
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This man knows what he is talking about and he does not sell lightning protection and does not recommend anyone unless they are a UL listed installer..
He and his partner speak to groups here and he is an expert.
He has a column in the POA newsletter.
You can count on him for honest and helpful answers.