During the brutal winters in Boston Massachusetts, icicles along the eves of your home may lead to ice dams that can seriously damage the interior and exterior of your home. Thick ridges of solid ice not only build up along the eves but can loosen roof shingles, damage or tear off gutters and can produce serious internal damage when melting allows water to back up and enter the interior of your home. Costly effects from the back flow of dripping or pouring water include stained and sagging ceilings, peeling paint, damaged drywall, warped flooring and siding and ruined interior furnishings. Moisture collecting in the attic insulation reduces energy R value and comprises your health as it attracts and ventilates mold and mildew throughout your home. Many homeowners discover a more serious roofing problem when they request a quote for roof repairs due to a leaking roof. Other times, serious interior damage makes it evident that roof replacement is the best answer. The solution relates to proper roof materials and ventilation and installation of an “ice barrier shield.”