Roof Ice Dams

There are several roof problems that are caused by winter weather. If you live in a wintry climate then you know that a heavy snowfall in a time of persistent cold temperatures can ultimately result in a roof leak, even if you have a strong and well maintained roof. Sometimes even the best of roofs can get a leak from heavy amounts of snow up on the roof for an extended amount of time. In fact, in 1993 many of the New England states got so much snow with very cold temperatures which resulted in a huge amount of homeowners with ice dams and roof leaks on roofs that had previously never had leaks or problems. The main problem with the snow is that when it all finally melts, the snow, then turned liquid cannot drain down the gutters and downspouts as they too have been frozen for long and probably have ice dams hanging.

What are Ice Dams?
Ice dams are one of the most common winter roof problems and are the result of melting snow dripping and draining off a slanted roof and then freezing.

What Causes Ice Dams?
Ice dams are often caused by poor attic insulation and ventilation. Poor attic insulation and ventilation means that a great deal of heat will be leaving your home through the attic and roof, thus making the snow on your roof melt at a fast rate- much faster then a properly insulated roof. This melted water flows down the roof, under the blanket of snow, and then onto the eaves and into the gutters. Once the melted snow reaches the overhang and gutters which is at a much colder temperature the water quickly turns into ice all along this area of the gutters and overhang. Large icicles or ice dams are then created and hang from your gutters.

Why is this a problem for your roof?
Ice dams are a problem because they cause other roof problems which lead to some other big roof problems- like leaks into your home. This can occur because the snow cannot drain properly off your roof when the gutters and downspouts are filled with icicles which will cause a backup of snow and melted snow on your roof, resulting in potential leaks. Catch the leak before it gets bad by paying close attention to your roof after heavy snowfall. If you see a water spot on your ceiling then it is a sign of roof damage right above.

How to Prevent Ice Dams

Before winter sets in, make sure you have enough roof insulation and ventilation

A proper check includes checking that the underside of the roof and outside air are at the same temperature. Also be sure attic insulation is not blocking roof ventilation.

Seal air leaks and seal duct air leaks in your attic to stop warm air leakage (usually the main source of the problem).

Clean out your gutters before winter to remove any leaves or debris. This will help prevent ice buildup and ice dams from forming.

What to do if you Have Ice Dams

Unfortunately, there is not much you can do on you own to get rid of ice dams.

NEVER attempt to go up on an icy or snowy roof.

Find a professional to remove snow and ice dams from your roof.

DO NOT attempt to remove ice dams unless you have experience doing so and know exactly what to do. You could seriously injure yourself if you are not skilled at removing ice dams.

If you know how to safely remove snow form your roof, then consider using a roof rake to help you. Removing snow will help prevent more ice dams.

Use the following link to find a reliable, professional roofer to help in the removal of your ice dams or to help you with any other roof related problems.