-What causes ice blockages in my gutter?
Ice blockages (or Ice Dams) are created when a large amount of snow accumulates on the roof of a building the snow will act as an insulator to the outside cold and heat loss from within the building. A lack of enough insulation and poor attic ventilation will warm the roof and thawing will result. When this melted snow runs down the roof and reaches the roof overhang it begins to freeze because there is a lack of heat and freezing begins.
