Why Do Icicles Form On Houses - Likewise, ice dams can exist. How to remove and prevent ice buildup. Are icicles bad for your roof? Web icicles on the house will occur once water dripping off the edge of the roof freezes when the temperature drops below freezing. Web icicles can be a sign of an ice dam higher up on the roof, or they can be present without an ice dam.
Are icicles bad for your roof? Web icicles can be a sign of an ice dam higher up on the roof, or they can be present without an ice dam. Likewise, ice dams can exist. How to remove and prevent ice buildup. Web icicles on the house will occur once water dripping off the edge of the roof freezes when the temperature drops below freezing.