| 41. | On houses with cold roofs, that melting occurs from the top down, without ice dams.
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| 42. | Big, long icicles hanging from the eaves are not necessarily a sign of ice dams.
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| 43. | How can you tell if ice dams are forming?
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| 44. | Homeowners in heavy-snow states like Vermont have long used devices to prevent ice dams altogether.
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| 45. | If not, there's still ice dams / glacial dams.
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| 46. | Ice dams can occur on steep or shallow roofs.
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| 47. | You can reduce the chance of ice dams by improving insulation and ventilation in your attic.
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| 48. | Such a shield will not prevent ice dams.
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| 49. | _Preventing ice dams on roof before they occur.
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| 50. | On houses with warm roofs, the melting occurs from the bottom up, creating the ice dam.
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