Aren't those icicles pretty? They're pretty damaging if left dangling like that. Once winter unleashes her fury, the moisture produced by rain and snow can back up under your roof. The result is called an "ice dam" and it can be very costly to repair. Keep your gutters clear and hire a professional to clear heavy snow off the roof. It's a simple preventative measure that can save you thousands of dollars in the long run. Now, you can relax with a cup of hot chocolate and enjoy the beauty outside without worry.