Moldings that wrap around the edges of window frames are referred to as casings. They are attached to the home’s exterior to form a tight seal between the window frame and the structure, preventing chilly air from penetrating the home. Casings add the finishing touch to a window installation inside a building, much in the same way baseboards and door moldings complete the look of a room. In most cases, they are designed to be an exact match for the moldings used in those specific applications. This ensures that the…