Definition & Meaning of "flat roof"

What is a "flat roof"?

A flat roof is a type of roof that has little to no slope, creating a nearly level surface. This design is commonly used in commercial buildings, urban homes, and modern architecture. Flat roofs are often covered with materials like asphalt, rubber, or concrete, which provide protection against the elements. They offer additional usable space, such as rooftops for gardens, patios, or solar panels. However, because they do not have a significant slope, flat roofs require proper drainage systems to prevent water accumulation and leaks, ensuring long-lasting performance.