How Attic Insulation Affects Your Risk of Ice Dams Next Winter
https://www.icedamusa.com/winter-roof-preparation/attic-insulation-and-ice-dam-risk/ Keep the Ice at Bay: The Surprising Impact of Attic Insulation on Winter Ice Dams The Problem Often Starts in the Attic — Not on the Roof Most homeowners believe that ice dams are caused by snow. While snow is a factor, it is often not the primary issue. The underlying problem is heat. When warm air escapes from the living space into the attic, it alters the temperature of the roof above. This uneven heat causes snow to melt in certain areas while others remain frozen. As the melted snow reaches the colder roof edges, it refreezes, forming an ice buildup that traps water behind it. This is why homeowners asking if attic insulation prevents ice dams are inquiring about a crucial aspect of winter roof prevention. In many homes, proper attic insulation and air sealing can mean the difference between a roof that performs well in winter and one that suffers from recurring ice dam issues. Why Heat Escaping I...