Tom, this question came up just a few week ago and it was put best this way: Do you think a dealer spends the time to clear all the rigs on his lot when it snows? RVs have very strong roofs, you shouldn't have to worry about the snow load.
Welcome to the forums. If you are new to how forums work, be advised that they are PUBLIC, that means everyone on the Internet can read them (usually), Therefore I would highly recommend that you not list personal contact information on a post. You should edit out your email address unless you really like a lot of spam. Members of the forums can PM (private message) you without your listing your email address.