NIk-----------Just went through this when I used an off-the-shelf (expensive) Oatey plumbing or vent boot to penetrate the standing seam roof between the seams. Lots of premium sealant where the array conductor entered the neoprene boot. Inspector didn't like it saying the boot would eventually deteriorate causing a leak. (Well, EVENTUALLY the Sun will go nova, too!)He required something that LOOKED like a weatherhead. so what I came up with was a standard weathercap mounted on a stub conduit on a rain tite plastic eight inch box gooped and fastened to the roof and a hole on the back (bottom) bit enough to completely surround the original boot diameter. Horrible trip hazard and it looks stupid to me but it sure pleased him! Go figure. Nick Houser Off Grid Services. P.S. Next time I'll use a Soladeck Combiner bot, though they are really intended for a shingled roof.
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