A roof is the top covering of a building, designed to protect it from weather elements like rain, snow, and sunlight. Roofs can be made from various materials, including asphalt shingles, metal, tiles, and wood. They come in different styles, such as flat, gabled, and hipped, each serving specific architectural and functional purposes. Roofs also play a crucial role in insulation and energy efficiency. A well-designed roof helps regulate indoor temperatures, reducing the need for heating and cooling. Additionally, roofs can incorporate features like gutters to manage rainwater and solar panels to harness renewable energy.