Ice Dams

While ice is sometimes fascinating, it can be quite destructive to roofs, especially ice dams. An ice dam, to an extent, is just a much larger version of an icicle. Their formation is technically the same in the sense that it involves melting and freezing back from the tip of the roof downward.

Since scraping ice off the roof could cause damage to it, it would have been incredible if they could have slowly fallen off on their own. This one here looks really good. But in the long run, they can cause damage to the roof since they last longer before melting.