Why do icicles form on my house’s roof?
Icicles may seem like an inevitable result of snowy weather, but they are often a warning sign of a bigger problem. Icicles form when snow begins to melt and drip off your roof, creating liquid droplets that refreeze into icicles. This commonly happens on bitterly cold yet sunny winter days. The temperature change that creates icicles on your roof also causes ice dams, which can severely damage your roof and gutter, leading to water leaks and other issues.