A well-maintained roof is your home’s first line of defense against harsh winter weather. Snow and ice can weigh down a roof, leading to potential leaks, structural problems, and costly repairs.
it starts melting the snow on the roof, and as it gets to the bottom of the roof where the overhang is, it freezes." Ice dams prevent water from running through the gutter and off your roof ...
Ice dams cause roof leaks but insulation ... Throwing salt or other melting agents on the roof may seem like the quickest fix, but experts warn it could do more harm than good.