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While it’s less common than on other kinds of roofs, yes, ice dams can form on metal roofs. Metal roofs, particularly those with snow guards installed, can still accumulate ice at the roof edge, although ice dams on metal roofs are less likely to cause roof or interior damage than on traditional asphalt shingle roofs.

Some commercial services use sand when clearing ice, but that’s to add instant traction, not to melt the ice. While you can scatter kitty litter, sand, or similar substances on steps, paths, or porches to improve safety during icy conditions, they won’t help melt hardened ice. Rely on salt or other de-icing methods to fully melt away stubborn ice.

When temperatures drop far enough, even rock salt can’t melt the ice. The briny solution freezes before it develops, and the salt doesn’t work, which happens around 10 to 15 degrees Fahrenheit. Keep in mind that wind chill and other factors impact ice-melting progress. Some ice melters, like magnesium chloride, work at colder temperatures and work better for deep winter freezes.

Generally, the cost of ice dam removal is not covered by homeowners insurance because it is often considered preventable maintenance. However, the damage caused by ice dams is frequently covered. Depending on your policy, this can include interior water damage, roof collapses, and damage to shingles. Coverage for personal belongings affected by leaks may vary. It is important to check your policy details or contact your insurer to confirm what your plan covers. Keep in mind that any damage resulting from a DIY attempt to remove an ice dam will likely not be covered.