fromBoston.com
2 weeks agoShould you be worried about your roof this winter?
In fact, it acts as an insulator that protects the shingles. And, even when it's deep, the snow's weight is less than what the roof is designed to bear; the average roof is built to carry loads of 65 pounds per square foot. Even flat roofs, which seem more vulnerable to snow loads than pitched ones, are pretty tough. In fact, residential flat roofing is stronger than commercial roofs.
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