Glass has now become the defining feature of modern commercial architecture. Although glass may appear delicate, it is one of the most versatile materials used in modern architecture. When used properly and supported by a good frame, glass makes up the backbone of the impressive and highly performing exterior appearance of today’s commercial structures.
That is exactly what a curtain walling system delivers. It is an external surface that is suspended like a curtain from the main structure of the building. It protects from adverse weather conditions, allows natural light to enter, and gives the building its modern look without bearing the load of the roof.
What Exactly Is A Curtain Walling System?
A curtain walling system is an outer and non-structural wall attached to the frames of the building. The curtain wall withstands its own weight, the actions of wind, rain, and changes in temperature. Most systems are constructed around frames composed of vertical mullions and horizontal transoms, within which are fitted panes of glass or opaque panels, attached to the framework at the level of each floor by brackets and fixings.
There are two main systems used throughout the UK.
Stick Systems: One of the best and most frequently used systems is the stick system for curtain walling. It is assembled using separate parts like aluminium mullions and transoms. Due to this piece-by-piece construction, this is with the many curves and shapes you may need for your building design. This is a favoured system where flexibility is key and where transport limitations make delivery of large pre-assembled units not viable.
This option, however, requires more site work, making the construction of the curtain walling more time-consuming and reliant upon skilled labour.
Unitised Systems: On the other hand, for the unitised systems, the curtain wall panel is completely manufactured and glazed in the factory. This means it can be shipped to the building site as ready to hang panels that already include framing and glazing; all that’s required on site is to hoist them into position and fix them to the building fabric. Due to this process, the work involved at the site is significantly decreased, saving time and space and improving workplace safety and the overall speed of construction. This makes unitised systems a favoured option for many large scale and high rise developments.
What Are The Benefits Of A Curtain Walling Installation?
A curtain walling installation provides more than just aesthetic appeal. It creates an effective and comfortable indoor environment. Below are some of the main advantages of using the curtain wall system.
Natural Light: One of the most important benefits of curtain walling is that it provides a lot of natural light in buildings. Giant glazed panels allow light into the interiors and thus ensure a pleasant atmosphere for all. The use of the system makes it possible to reduce electricity costs for lighting.
Energy Efficiency: Modern curtain walls are created for the purpose of energy efficiency. Special technologies allow using double glazing, Low-E glass, and solar control glass to minimise indoor warmth going outside and prevent cold breezes from entering, thus making it possible to save on heating and air conditioning.
Weather Protection: Despite a lightweight appearance, the curtain wall works as a barrier against wind, rain, and moisture. After a proper installation, the system makes a weather-resistant envelope of the building, thus preventing any water penetration and thus prolonging the service life of the construction.
Flexibility in design: Another advantage of curtain walling for architects is the increased design flexibility as compared to traditional masonry walls. No matter whether it is designed using straight lines or curved walls, the curtain walling system can be customised to suit various architectural designs.
Less structural Load: As opposed to typical exterior walls, curtain walling is not a load-bearing element of a building. This means that while ensuring maximum protection and stability, it imposes a smaller load on the whole construction due to being attached to its structural frame.
Low Maintenance: The modern aluminium frames are very durable and do not corrode, which means that they need minimal maintenance. Together with the high-quality glazing system, they have an extended operational life cycle.
Where are curtain walling systems generally used?
The use of curtain walling systems in the commercial sector is largely due to their versatility and effectiveness in the construction industry. We can usually find them fitted in:
- Office complexes
- Shopping malls
- Hotels
- Medical buildings
- Educational institutions
- Airports
- Business headquarters
Conclusion: A glass curtain walling is not just about an attractive glass exterior. It is a smart solution that allows better weather protection, improves energy efficiency, and more natural light in buildings.
Regardless of whether you have opted for a stick system or a unitised system, the important thing is to choose the right kind of glass curtain wall, select the proper glazing, and provide appropriate installation of curtain walling.
FAQs:
Question 1. What’s The Difference Between Stick And Unitised Systems?
Answer. Stick systems are built piece by piece on site, enabling lots of design customisation. Unitised systems arrive pre-fabricated (fully glazed units), ready to fix on site much faster on taller projects.
Question 2. Why Install Glass Curtain Walling?
Answer. Glass curtain walling offers several benefits for modern commercial buildings. It allows more natural light and reduces the need for artificial lighting at a certain level. Modern curtain wall glazing also improves energy efficiency through options such as double and triple glazed units, and Low-E glass.
Question 3. Does Curtain Walling Require A Lot Of Maintenance?
Answer. No. High-performance aluminium frames resist corrosion, and when installed with efficient curtain wall glazing, should need very little maintenance for years.
Question 4. Why Should I Hire Experienced Curtain Walling Contractors?
Answer: Experienced curtain walling contractors ensure accurate installation, compliance with regulations, and long-lasting performance of the exterior.
