I have a two-story home with a metal roof. I bought the home three years ago. Every year ice builds up on the roof ans slowly slides off. Last year it became 6 inches thick and when it finally let go it destroyed my metal bulkhead and damaged my chimney. I'd like to remove the snow before it turns to ice. Is there a roof rake that will reach the top of my house (the peak is almost 50 feet from the ground)? Any other alternatives?