Tension membrane roofs, also known as tensile membrane structures, are architectural structures made of flexible, lightweight, and durable materials. They are designed using a tensioned membrane, which is stretched over a supporting structure to form a self-supporting shell. This design allows for innovative shapes and large spans, making them suitable for various applications such as sports facilities, convention centers, and outdoor pavilions. The design process involves selecting the appropriate materials, determining the structural configuration, and ensuring the membrane is tensioned correctly to provide stability and aesthetics.