What Is Window Walling?
There are various types of curtain walling found on the external walls of large multi-storey commercial or residential buildings. They all consist of a non-structural outer covering that is designed to protect the interior environment while providing an elegant, modern aesthetic. In this article we will look specifically at glazed window walling, a subtype known for its extensive use of glass.
Understanding Curtain Walling
Curtain walling systems are lightweight, prefabricated panels that are fixed to a building’s structural frame. Unlike traditional walls, they do not carry any load from the building; instead, they serve as a protective and decorative envelope. There are various systems available, including stick systems, unitised systems, and semi-unitised systems. Each type is designed to be relatively easy to install and maintain while efficiently separating the building’s interior from the exterior.
The Specifics of Glazed Window Walling
Glazed window walling uses large expanses of glass combined with slender framing-typically made from aluminium or other high-strength alloys-to create a seamless facade. Let’s a closer look at its key components and features:
- Components
Glass Panels: The primary element, offering transparency and allowing natural daylight to flood the interior. Advances in glass technology have led to the development of energy-efficient glazing that minimizes heat loss and controls solar gain.
Framing System: The supporting framework is engineered to be both strong and lightweight. The framing not only secures the glass panels but also contributes to the overall aesthetic, often featuring clean, minimalist lines.
Sealants and Gaskets: These materials ensure the integrity of the walling system by preventing water and air infiltration, enhancing both energy efficiency and weather resistance.
- Installation
Ease and Speed: Glazed window walling is designed for rapid assembly. Many systems are prefabricated in factory-controlled conditions, reducing on-site construction time and minimising disruptions.
Lightweight Construction: The materials chosen for these systems are purposefully light, reducing the load on the building’s structure and allowing for innovative architectural designs.
Benefits of Glazed Window Walling
Glazed window walling offers several advantages over traditional building envelopes:
Aesthetic Appeal: The extensive use of glass provides a sleek, contemporary appearance that enhances the building’s overall design.
Transparency and Connection: Large glass panels blur the line between indoor and outdoor spaces, creating a sense of openness and inviting natural light into the interior.
Daylighting: Maximising daylight helps reduce reliance on artificial lighting, which can contribute to energy savings.
Thermal Performance: With advanced glazing options-such as double or triple glazing, low-emissivity (low-E) coatings, and gas fills-window walling can offer excellent thermal insulation. This is crucial for maintaining comfortable indoor temperatures and reducing heating and cooling costs.
Acoustic Insulation: Modern systems are designed to dampen external noise, providing a quieter and more comfortable interior environment.
Energy Efficiency: By leveraging natural light and reducing energy consumption for artificial lighting, glazed window walling systems contribute to a building’s overall sustainability.
Innovative Materials: The use of recyclable materials in framing and advanced glass technologies can help reduce a building’s carbon footprint.
Challenges and Considerations
While glazed window walling offers many benefits, there are several challenges to consider:
Glare and Solar Control: Extensive glazing can lead to unwanted solar glare. Effective shading strategies or the use of smart glass that adjusts its transparency can lessen this issue.
Maintenance: Regular cleaning and maintenance are essential to keep the facade looking its best. Sealants and gaskets may require periodic inspection to prevent water ingress.
Glazed window walling is a vital element in modern architecture, offering a sophisticated blend of aesthetic appeal, performance efficiency, and sustainable design. We believe that as materials and technology advance, glazed window walling will continue to push the boundaries of design. To find out how we can help or advise you on your window walling project please contact us now.
