re: Getting solar panels today!!

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We are installing a metal roof on our new home that will have a 15kw solar system. Panals attached to raised seams in roof and are relatively easy to replace although with a minimum 25-year life, we do not expect to have to deal with panel or roof replacement during our time in the house.

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I sell commercial roofing, mainly metal/standing seam... Attaching anything to our panels usually voids the warranty, and depending on the panel, some are a pain to replace the panels. Reality is though, attaching to a metal panel on the seam is a way better idea than penetrating a shingle with a screw. I always pass houses with solar panels screwed into the roof and just wonder what the solar guy said that made them penetrate a $10k-15k roof to save a little money. Screwing/nailing into any shingle not only immediately voids the warranty, but just begs for water to penetrate and become a major issue. I also wonder what effect pollen has on the efficiency of solar panels. I see what it does to my truck in the spring, and knowing how homeowners are. I doubt they're going to get on the roof to clean them.