Curtain walling does more than just make your commercial building look smart. These lightweight systems help to keep out wind and rain while letting in plenty of natural light. They’re not load-bearing, but they play a big part in how a building performs and feels. As energy targets tighten and building designs evolve, choosing the right curtain walling system has never been more important. The right setup can help regulate indoor temperatures, reduce reliance on heating and cooling, and help create a more comfortable and quieter environment inside.
What’s more, the system you choose can impact how the building copes with movement, air pressure and the great British weather. There’s definitely more to consider than just how it looks. At Pops Facades, we’ve worked on commercial projects up and down the country, helping clients find curtain walling systems that tick every box. Whether you’re working on a high-rise office block or a new retail unit, we bring practical solutions and years of hands-on experience to every job.
Read on to find out why choosing the right curtain walling system matters and the factors to think about when narrowing down your choice.
What is curtain walling?
Curtain walling is a type of external cladding that is designed to sit on the outside of a building’s structure without bearing any of its weight.
There are two main types of curtain wall systems:
- Stick systems are assembled piece by piece on-site. These are ideal for projects where site access is good, and the design gives you flexibility during installation.
- Unitised systems will arrive on site in prefabricated panels, fully glazed and ready to be lifted into place. They work best for larger, more complex buildings where access is more restricted and speed and efficiency are needed.
Why the right curtain walling system matters
Choosing the right curtain walling system affects a building’s functionality and appearance in ways that go beyond simple design choices.
Visual impact
The facade is the first thing people will notice. A well-designed curtain wall will help to reinforce your brand identity, reflect the building’s purpose, and set the tone for what’s inside.
Energy performance
Lower the building’s running costs by limiting solar gain and improving thermal insulation with a well-designed curtain wall system.
Structural performance
Curtain walling has to cope with a number of stresses, such as wind loads, structural movement, and building sway, especially on taller structures. A well-designed system supports flexibility and keeps the building envelope safe and secure.
Regulatory compliance
There’s no getting around building regulations. Curtain wall systems must meet standards for things like thermal performance (e.g. Approved Document L), fire resistance, and acoustic control. Getting it right at the specification stage will avoid costly delays and retrofits later on.
Long-term value
A system that’s easier to maintain, clean, and repair over time is better for your budget in the long run. Consider access for cleaning and replacement parts, as well as how well the materials withstand weather and pollution.
Key factors to consider before choosing a curtain wall system
There’s no one-size-fits-all solution when it comes to choosing the right curtain walling system. Each project has its challenges, and getting the right fit means weighing up several important factors early in the design process.
Building height and design complexity
If your building is tall and architecturally ambitious, the more demanding the curtain walling solution needs to be. High-rise buildings are better suited to unitised systems for quick installation using cranes or mast climbers, while smaller projects might be best with stick systems for more control and flexibility on site.
Thermal and acoustic performance
Energy efficiency isn’t just about ticking boxes; it can have a big impact on running costs and occupant comfort. Thermal breaks, low-emissivity glazing, and effective seals will help to keep the heat in during winter and out in summer. Likewise, acoustic insulation is worth considering in busy urban areas or near transport routes.
Location and environmental exposure
A curtain wall installed in the middle of London will face very different conditions compared to one on the coast or in a more rural spot. Exposure to driving rain, high winds, pollution or salty air can affect what materials are used. Local climates and environmental factors should be considered when choosing the system.
Budget and installation timelines
Unitised curtain walls are faster to install but come with a higher upfront cost. Stick systems are more affordable but need more time and coordination on-site. If your project has tight deadlines or access restrictions, thinking practically makes sense.
Fire safety and compliance
Post-Grenfell legislation means that compliance is non-negotiable. Therefore, UK fire safety regulations, which include the correct use of fire breaks, cavity barriers, and fire-rated materials, must be met, especially on buildings that are more than 18 metres in height. It’s essential that you work with suppliers and installers who understand the current requirements inside out.
Glazing options and customisation
Finally, don’t overlook the glass. From solar control coating and coloured tints, your glazing choices can have a big impact on the performance and look of the building. Most systems can be customised to suit your needs, such as extra privacy, glare reduction or visual branding elements.
Stick vs unitised curtain walling: Which is best for your project?
Which curtain wall system will you choose, stick or unitised? Here we share the pros and cons of each to allow for better decision-making:
Stick systems
| Pros | Cons |
| Lower upfront cost for materials | Takes longer to install |
| Allows for flexibility on site | More labour-intensive |
| Easier to make last-minute design changes | Installation may be slowed due to adverse weather |
| Ideal for smaller or less complex buildings | Needs careful sequencing of trades |
Unitised systems
| Pros | Cons |
| Quick and easy to install | Higher costs for materials and transport |
| Better quality control | On-site changes can’t be made |
| Fewer trades are needed on site | Design needs to be finalised early on |
| Less disruption on site | May need large plant equipment for lifting |
Choosing curtain walling with confidence
Curtain walling is more than just putting glass on the outside of a building; it can have a big impact on how it looks, performs and functions for years to come. Regardless of whether energy efficiency and structural performance or aesthetics and long-term maintenance are the concern, the right system brings real benefits to your commercial project.
But with such a range to choose from, it’s not hard to feel confused. That’s where employing an expert makes a difference. If you work with a contractor who knows the technical specifications, local building codes, and aesthetic considerations, you’re much more likely to end up with something that satisfies on every level.
At Pops Facades, we’ve helped clients across the UK find the curtain walling systems that suit their goals. Our team brings practical know-how, precision engineering, and an open collaborative approach from day one. Got a project in mind? Get in touch with Pops Facades to talk through your requirements, explore your options, and take the next steps.
