Curtain walls are non-structural, lightweight exterior wall systems made primarily of glass, aluminum, or other durable materials. Designed to span multiple floors, they allow abundant natural light while providing a sleek, modern appearance. Curtain walls act as a protective skin for buildings, offering excellent resistance to air and water infiltration, wind, and seismic forces. Ideal for commercial buildings, offices, and high-rises, they enhance both the aesthetics and energy efficiency of a structure.