Windows & Curtain Walling

Curtain walling is a non-structural exterior building system that typically consists of a lightweight framework of metal or other materials, with large panels of glass, stone, metal, or other materials inserted between the frame. It is primarily used in modern commercial and high-rise residential buildings to create a visually striking and functional façade.

Unlike traditional walls, curtain walling does not support the building’s load, which is carried by the structure of the building itself. Instead, it serves as an outer “skin” or protective layer, offering aesthetic appeal, energy efficiency, and weather resistance while allowing for expansive windows and open views.

Key Benefits of Curtain Walling:

• Aesthetic Appeal: Curtain walling allows for large, uninterrupted spans of glass, which create bright, open interiors with panoramic views. The clean lines and modern look of curtain walls enhance the building’s architectural design, contributing to a sleek, contemporary appearance.
• Natural Light: The extensive use of glass in curtain walling maximizes natural light penetration into the building, improving interior brightness and reducing the need for artificial lighting during the day.
• Energy Efficiency: When combined with high-performance glazing and insulation, curtain walls can enhance a building’s thermal efficiency, helping to maintain indoor comfort levels while minimizing energy consumption. Advanced glass coatings can also offer solar control, reducing heat gain in warmer climates.
• Weather Resistance: Curtain walling systems are designed to withstand various weather conditions, including wind, rain, and temperature fluctuations. The use of sealed joints and gaskets ensures the system is airtight, reducing the risk of water ingress and heat loss.
• Durability and Low Maintenance: Curtain walling systems are typically made from materials like aluminium, which are corrosion-resistant and require minimal maintenance. The materials are also lightweight, reducing the structural load on the building.
• Flexibility in Design: Curtain walling offers a wide range of design options, from transparent glass to opaque panels, allowing architects to create customized exteriors that align with a building’s aesthetic vision. The system can also accommodate different shapes, sizes, and configurations.

Types of Curtain Walling:

1. Stick System: The curtain wall is constructed on-site, with individual components (vertical and horizontal mullions) assembled piece by piece. It is typically used for low to mid-rise buildings.
2. Unitized System: Pre-fabricated panels, including the frame and glazing, are assembled off-site and then installed as large sections. This system is faster and more efficient for high-rise buildings.
3. Structural Glazing: The glass panels are directly bonded to the frame using a structural adhesive, creating a sleek and seamless look, with minimal visible framing.
4. Rainscreen System: A variation that integrates a secondary weather-resistant layer, improving water drainage and air circulation behind the curtain wall.

Curtain walling provides a visually impressive, functional solution for modern architecture, combining aesthetics with performance. It’s a popular choice for buildings requiring large glass facades, natural lighting, and energy-efficient design, while offering flexibility for a wide range of applications.