Speaking of trucks, I've seen 'em coming south from Michigan, Ontario, etc with 12+ inches of snow on their trailer roofs. You know it's frozen on there too since it hasn't come off in 100+ miles. It eventually does though, I've seen it happen, and you don't know how hard/solid some of it is but I know some can do serious damage. My question is, how is a truck driver supposed to get that off ? An extension ladder and a broom ? Serious question....