A structural curtain wall is a non-load bearing exterior wall system that hangs off a building's structure like a curtain. It is typically made of aluminum framing and glass panels, but can also include other materials such as metal panels, stone, or composite materials. The system is designed to resist wind loads and other environmental factors, while providing a visually appealing facade for the building. Structural curtain walls are often used in high-rise buildings and commercial structures to provide natural light, energy efficiency, and a modern architectural aesthetic.