Ice Dams

An ice dam has the potential to cause serious damage to both your roof and the inside of your home. It is important to take the right steps to protect your home from the risks associated with heavy snow and ice.

What is an ice dam?

An ice dam can form when water from melting snow re-freezes at the edge of your roof line. Without roof snow removal, the ice dam may grow large enough to prevent water from draining off the roof. The water can then back up underneath the roof shingles and make its way inside your home.

Immediate steps you can take:

Clear downspouts. An easy way to help snow and ice drain off your roof is to make sure the area around your downspouts is clear. This will make it possible for your gutters to drain when snow does melt. It will also help prevent flooding when the snow and ice melts.

Remove snow from your roof after every storm. Use a roof rake to clear the first three to four feet of snow from your roof immediately after each winter storm to prevent ice dams from forming. While the amount of snow and ice that your roof can handle may vary depending on a number of factors such as the roof type,age and condition of the structure, a good rule of thumb is if there is more than a foot of heavy, wet snow and ice on your roof, you should try to have it removed.

Ice Dam Prevention:

Ultimately, the best prevention for ice dams is to eliminate the conditions that make it possible for them to form in the first place.Insulate your attic. Make sure your attic is well insulated to help prevent the melting-and-freezing cycle that causes ice dams to form. Check and seal places where warm air could leak from your house to the attic, including vent pipes, exhaust fans, chimneys, attic hatches and light fixtures.Install a water-repellant membrane. When replacing a roof, make sure to install a water membrane underneath the shingles. This acts as an extra barrier that helps prevent water from seeping inside the building.
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