A dormer is a structural element that protrudes from the slope of a roof, typically containing a window. It is designed to create additional space and light in an upper level or attic area of a building. Dormers can come in various styles, such as gabled, shed, or hipped, each contributing to the overall aesthetic of the home. Dormers are commonly found in residential architecture and can enhance both functionality and appearance. They allow for better ventilation and can make a room feel more spacious. Additionally, dormers can increase the value of a property by adding usable living space.