Six Warning Signs:

1. Your home has had ice dams in the past.
2. You see roof ice– icicles forming on the edge of the roof, or off the front edge of the gutter.
3. Ice is coming through the soffit.
4. Ice is forming behind the gutters (if gutters are present).
5. You see ice or water on the exterior wall.
6. You see water coming through the frame of a door or window.

Perhaps this is too obvious to mention, but if you see water on an interior wall or ceiling of your home, and it corresponds to some of the warning signs above, you most likely have an ice dam.