Paul, do you have any idea how well a geodesic dome will hold up under snow load? I would think good, except for the fact that my BIL considered putting up a geodesic dome home at one point and was told that it wouldn't work well here for that reason. Sure like the looks of yours, though! Have you ever had a chance to see the Mitchell Park Domes in Milwaukee, WI (I imagine not, but you never know where people have gone) - anyway, they have 3 BIG domes with various sorts of plant habitats, really awesome!
http://county.milwaukee.gov/Mi...