If these aren’t taken care of, they can cause serious damage to your home, including leaks in your roof. But how do these form? Ice dams form when the snow melts, then freeze again, and the cycle of melting and repeating continues. The problem with ice dams is that the damage they can cause to your roof cuts its lifespan in half. Would you rather fix your roof or get rid of what’s causing those pretty icicles? The answer is clear. You should get rid of the ice dam before any serious damage can be done to your home.