Well, in case you ddint see it, the snow collapsed the stadium in Minn. Its heavy, and it melts. If you live in a high snow area, you need to sweep your roof if the snow doesnt slide off. Most high snow homes have very steep pitches so snow wont stick, but still it may need to be attended to. There are companies up there that know how to do this safely, use them. Its cheaper than a damaged roof.