The holidays can be a time for you to enjoy and appreciate the beauty of snowy days and cold weather. Despite the festive air, though, you should know that the snow buildup on your Pittsburgh, PA roofing system could potentially cause it to fail or worse, to collapse under all the weight. Hence, it is important to maintain your roof and make sure that the snow doesn’t pile up high enough to cause ice dams and other problems.
How are ice dams formed?
When escaping heat from your attic comes into contact with the collected snow, it melts it. However, the layers of snow above the thawed ones are still cold, so the water freezes again into ice, and the cycle keeps going until you have a massive ice dam on your roof – a danger to your roofing material and the durability of your roof system itself.
http://www.pittsburgharearoofers.com/info-article/winter-care-for-your-pittsburgh-pa-roofing-the-need-for-snow-removal/
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