Framed-type glass curtain wall
Contents |
[edit] Introduction
A framed-type glass curtain wall is a non-structural outer covering of a building where the exterior walls are made of large glass panels set within a metal framework. This type of curtain wall system is designed to protect the interior of the building from the elements (such as wind and rain) while allowing natural light to enter.
[edit] Key Features of a Framed-Type Glass Curtain Wall
Structural Support:
- The primary structural support comes from a metal frame, typically made of aluminium or steel. This frame is attached to the building's structural components, such as floors or columns.
- Large glass panels are inserted into this metal framework. The glass is often double-glazed or laminated for added strength and insulation.
Non-Load Bearing:
- Unlike traditional walls, a framed-type glass curtain wall is non-load bearing. This means it does not carry any of the structural weight of the building. Instead, the weight is supported by the building's frame and foundations.
- Because the curtain wall is separate from the structural framework of the building, it can move independently. This allows it to better withstand forces such as wind pressure and seismic activity without transferring stress to the building’s structure.
Design and Aesthetics:
- Glass curtain walls give buildings a sleek, modern look. They are often used in high-rise buildings and commercial structures for their aesthetic appeal.
- They provide a high degree of transparency, allowing natural light to penetrate deep into the interior spaces, which can reduce the need for artificial lighting and improve energy efficiency.
Thermal and Acoustic Insulation:
- Modern framed-type glass curtain walls are designed to provide thermal insulation, helping to keep the building warm in the winter and cool in the summer. This is typically achieved through the use of double or triple glazing.
- These curtain wall systems also offer sound insulation, which is important in urban environments where noise pollution can be a concern.
Weather Protection:
- The joints between the glass panels and the frame are sealed to prevent water and air infiltration, ensuring that the interior of the building remains protected from the elements.
- Many curtain wall systems include drainage systems to manage any water that penetrates the outer seals, preventing it from reaching the interior.
[edit] Types of Framed-Type Glass Curtain Walls
- Stick system: The stick system involves assembling the curtain wall components (i.e., mullions and glass panels) on-site. This allows for flexibility and adjustments during installation but can be more time-consuming.
- Unitised system: In the unitized system, large units or modules of the curtain wall are pre-assembled in a factory. These units are then transported to the site and installed. This method is faster and often results in higher quality due to controlled factory conditions.
[edit] Applications
Framed-type glass curtain walls are commonly used in:
- Commercial buildings such as office buildings, shopping malls, and hotels.
- High-rise buildings where they provide a striking appearance and enhance natural lighting.
- Institutional buildings including hospitals, universities, and libraries, where aesthetic appeal and functionality are important.
[edit] Related articles on Designing Buildings
- Brick veneer.
- British post-war mass housing.
- Building fabric.
- Cladding.
- Curtain wall.
- Facade cleaning.
- Fire performance of external thermal insulation for walls of multistorey buildings, third edition (BR 135).
- Infill panel walls.
- Metal composite panels.
- Off-site prefabrication of buildings: A guide to connection choices.
- Patent glazing.
- Rainscreen.
- Sandwich panel.
- Structural glass assembly.
Featured articles and news
Nominations sought for CIOB awards
Celebrating construction excellence in Ireland and Northern Ireland.
EPC consultation in context: NCM, SAP, SBEM and HEM
One week to respond to the consultation on reforms to the Energy Performance of Buildings framework.
CIAT Celebrates 60 years of Architectural Technology
Find out more #CIAT60 social media takeover.
The BPF urges Chancellor for additional BSR resources
To remove barriers and bottlenecks which delay projects.
Flexibility over requirements to boost apprentice numbers
English, maths and minimumun duration requirements reduced for a 10,000 gain.
A long term view on European heating markets
BSRIA HVAC 2032 Study.
Humidity resilience strategies for home design
Frequency of extreme humidity events is increasing.
National Apprenticeship Week 2025
Skills for life : 10-16 February
Update on the future of Grenfell Tower
Deputy Prime Minister decides for it be carefully taken down to the ground.
Ending decades of frustration, misinformation and distrust.
Essential tools in managing historically significant landscapes.
Classroom electrician courses a 'waste of money'
Say experts from the Electrical Contractors’ Association.
Wellbeing in Buildings TG 10/2025
BSRIA topic guide updates.
With brief background and WELL v2™.
From studies, to books to a new project, with founder Emma Walshaw.
Who, or What Does the Building Safety Act Apply To?
From compliance to competence in brief.