A flat roof is a type of roofing system that is nearly level, with a slight slope for water drainage. Unlike traditional pitched roofs, flat roofs are often used in commercial buildings, but they can also be found in residential structures. They are typically constructed using materials like asphalt, rubber, or membrane systems, which help to prevent leaks and water accumulation. Flat roofs offer several advantages, including easier access for maintenance and the potential for additional outdoor space, such as a rooftop garden or terrace. However, they may require more frequent inspections and maintenance to ensure proper drainage and prevent water pooling, which can lead to damage over time.