Deep snows can result in an ice dam on your roof. An ice dam is a ridge of ice that forms at the edge of a roof and prevents melting snow from draining off the roof. The water can back up behind the dam and leak into your house resulting in damage to walls, ceilings. The problem is caused by heat loss from your attic which gets the water flowing. The water than meets the colder edges of the roof where packed snow has turned to ice and backs up under the roof shingles and enters the house.
In an emergency where water is flowing into the house, making channels through the dam of ice can help by allowing the backed up water to escape before it penetrates the roof. The best way to cut a channel is connect a hose to a warm water source like a supply valve of a washing machine and spray a narrow stream to cut a channel in the ice letting the trapped water escape.
Posted on January 25, 2016 at 4:03 pm by Tom Saporito