Building exteriors refer to the outer surfaces and structures of a building, including walls, roofs, windows, and doors. These elements are designed not only for aesthetic appeal but also for functionality, providing protection from weather and environmental factors. Common materials used in building exteriors include brick, concrete, wood, and glass. The design of building exteriors can vary widely based on architectural styles, local climate, and cultural influences. Features such as balconies, facades, and canopies enhance the visual interest and usability of the space. Proper maintenance of building exteriors is essential for longevity and safety.