Have you had trouble with ice dams and water damage in the past? Many homeowners in the northern United States are all too familiar with ice dams. These are thick accumulations of ice that form over the eaves of a house. Water then collects behind the dam and gradually works its way beneath roof shingles through a cycle of freezing and thawing. The result can be leakage into the living areas of the home, which in turn can produce sagging plaster, stains, and other damage. [Read this article]
Source: blogs.bobvila.com

