Curtain wall
Curtain wall generally refers to the exterior of the tower section of a building above the podium section, which is usually a self-supporting façade system anchored in front of the concrete slab of a building. It is commonly used in commercial and office buildings as exterior decorative features of the building. The system and design involved in curtain wall works are usually more standardised with limited variation. Common materials used in curtain wall works include glass, aluminium and steel.