A major problem that your Milwaukee roof may face is the build-up of snow and the development of ice dams. The excess weight of snow can damage your roof, gutters, and downspouts. Excessive snow can also block the water flow of the gutter and downspout system. Ice dams form when heavy snow melts during the day, flows under the shingles and refreezes at night. After several melt-freeze cycles, water can enter the attic and damage insulation, ceilings, walls, and even the building itself. Fortunately, there are steps you can take to prevent damage caused by heavy snow loads and ice dams. By keeping the snow load to a minimum, you will reduce the chances of an ice dam forming. In addition, you will prevent damage to the roof due to excessive weight.