Ice dams are continuous chunks of ice that form along the margins of your roof. While frozen, they're no more trouble than the icicles that hang down. But during the warmer parts of a winter day, water melting off the roof pools behind the ice (Fig.
An ice dam is a ridge of ice that forms on or near the edge of your roof. When snow starts melting or if a winter storm hits, an ice dam could prevent water from properly draining off your roof — resulting in water backup that could seriously damage your home's roof, ceilings, walls, insulation, and even personal belongings.
The Thermwell Products Co., Inc. 60 ft. Roof De-Icing Cable Kit can be used to keep gutters and downspouts flowing and help prevent ice from forming under the edge of your shingles. This de-icing kit installs easily and comes with shingle clips. Use to help prevent ice from forming under the edge of your shingles
We have found that the only way to cure an ice dam - and prevent one in the first place - is to: 1. Seal all points where warm air leaks from the living space into the spaces immediately below the roof sheathing. 2. Insulate the living space well enough to prevent conduction and convection of heat
Ice-Dam Breaker If you live in a cold, snowy region, you already know about the damaging effects of ice dams. The gutters clog up with ice, then water runoff from the roof gets trapped by the dam and eventually backs up the roof, travels under the shingles, and leaks into the house.
An ice dam is a ridge of ice that forms at the edge of a roof and prevents melting snow (water) from draining off the roof. The water that backs up behind the dam can leak into a home and cause damage to walls, ceilings, insulation, and other areas. Figure 1 shows a cross section of a home with an ice dam.