Catching up on TWC and the snow belt mess this afternoon and they gave some interesting info re snow load. There is usually at least one post re "should I or not" every year, so here it is early....u...
Besides the weight of water per cubic foot (62lbs), many factors come into play on the weight of snow and depth on a surface. Dry or wet snow? Heated or unheated surface? Freeze thaw(ice dam). No standard for snow weight, that I know of.