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My kitchen range hood is vented through the roof. The vent pipe on the roof is made of metal and extends a bit higher than the roof ridge. It is connected via metal ducts to the range hood. The range hood itself is grounded.

Do I need to ground the vent pipe on the roof?

I live in the US (New York).

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  • For what purpose? Lightning protection?
    – isherwood
    Nov 6, 2017 at 19:48
  • How are the duct pieces held together? Nov 6, 2017 at 23:35
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    Is the vent in close proximity to a power feed? If not I can't see it being needed.
    – Ed Beal
    Nov 7, 2017 at 0:02
  • @threephaseeel with metal screws.
    – this
    Nov 8, 2017 at 3:54
  • @isherwood that's the first (and so far only) thing that comes to my mind. Would it make sense though?
    – this
    Nov 8, 2017 at 3:57

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