Ice dams form when there has been heavy snow coupled with temperatures below freezing.
When warm air escapes through your roof’s ventilation system, the snow that is on the top of your roof heats up and begins to melt.
However, once the melted snow and ice travel to your roofs overhang, it is trapped and then freezes due to the extreme cold temperatures.
Once this water refreezes, it forms an ice dam which poses a great threat to your roof, as it will cause water to begin to seep into your home. If left untreated, the water can cause structural damage.
Not only are ice dams dangerous to your roof but they can also cause you to lose energy in your home.
It is very important to contact a professional roofer and have the ice dams removed immediately. Due to the fact that you are dealing with ice on your roof, don’t ever attempt to remove ice dams yourself.
The best course of action is to prevent ice dams from forming in the first place. Taking steps to prevent excess heat from evaporating from your home is the best prevention for ice dams.
If you live in a cold climate, have a roofing contractor inspect your roof and make certain that it can withstand the weight and pressure of accumulated snow. Devise a plan to remove snow as soon as it begins to build up on your roof.