Your roof mount should be fairly easy, being between the two extremes.
I'm guessing you don't have to have structural engineering to say your array will still be sitting on the roof after a 3 second gust of 170MPH? (26.8°N). Then to make my install more fun, I decided I didn't want to drill holes directly through my Decra stone coated decorative metal tile roof, so I have 102 mounts intended for use with a clay tile roof, and no crazy flashing of the metal tiles.
You probably also don't have to design for 100PSF ground snow load (45.9°N). I'm really beginning to think a ground mount is in my future at 45.9°N. I'm not sure I really want to put a series of holes in the roof, and then a pile of snow on top and ask if the house is still standing.
|