The hangar we had that got spray foamed for a reason: oven like in summer, frozen in winter, but it was really good at keeping the wind off.
Every one I have been in has conduit for the electricity, lightning strikes just burn a hole, or at least what I have heard. Never saw a strike on one personally so I'm not sure where the concern would be
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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