Winter wreaks havoc on your home, especially the exterior. When you inspect your roof after the thaw, make sure to check your gutters out too. The freezing and thawing cycle causes the metal in your rain system to expand and contract with the changing temperatures. The seams in your gutter will crack and bend with the ice. The next thing you know, you have water running down the side of your house and pooling around your foundation. This water can seep into small cracks, and the same thawing and freezing can break down your foundation and cause water damage issues like mold growth and crumbling walls.