Testing glazing systems: why real-world tests beat simulations

Simon Edward • 14 September 2026

How do you know if a glazing system is fit for purpose? It's partly a case of testing. Explore the benefits of real-world tests in our guide.

How do you know if a glazing system is fit for purpose? It's partly a case of testing. Explore the benefits of real-world tests in our guide.

It might seem obvious, but a glazing system must be fit for purpose. Anything less and you put building occupants and your own reputation on the line.

But how do you know if a glazing system is up to the job?

There's more than one answer, of course. You can check the supplier's accreditations. You can look for online testimonials. You can visit sites that use the supplier's specific systems. You can look for data on airtightness, thermal performance and the rest.


But none of this is completely compelling without knowing that the glazing system has been thoroughly and compliantly tested.


Here at Wrightstyle, we test all our steel-and-glass glazing and curtain wall systems using physical, real-world experiments rather than computer or laboratory simulations.


Put simply, that means we send our systems to specialist testing labs. There, they're blown up, set on fire or attacked with real weapons.


Why do we go to the trouble? It's primarily to give ourselves and our customers peace of mind that our glazing systems meet and exceed expectations.


In this guide, we look in more detail at the ways we test our high-performance glazing systems. But first: why is real-world testing so much better than computer simulations?


Why real-world testing beats simulations

The real world is unpredictable. And while computer and laboratory condition simulations can model unpredictability to an extent, they simply can't beat good old real-world testing.


Three unpredictable factors are wind, rain and heat. Simulations often test these three things separately, whereas real-world tests can test all at once.


Simulations also often assume the glazing system will be perfectly installed. Real-world testing, by contrast, reveals how the system performs under less-than-ideal installation conditions.


Similarly, real-world testing can reveal hidden flaws – such as water-pooling paths and acoustic bridging – that aren't built into digital models.


At the end of the day, it's about testing glazing systems in the conditions they'll be installed in – not a virtual simulation.


As our former marketing director once wrote:


"A lot of similar test data is computer-generated. Instead, we wanted to test our system against real bombs. That reflects our approach to any of our products. We can guarantee the quality of everything we make because our testing is absolutely thorough."


So, how do we do it? It all depends on the nature of the glazing system. This determines the tests we subject them to in the field.


Fire-resistance testing

We extensively test our fire-resistant glazing systems to European and British standards, including BS 476 and EN 1364. They can withstand fire and smoke for 30 to 180 minutes, depending on the product.



In the video below, you can see our F1 door, screen and window system tested to the American ASTM E119 requirements. These are the standard test methods for fire tests of building construction and materials.


This test is in two parts: a fire endurance test and a hose stream test. The F1 door, window and screen system achieved 90 minutes of fire resistance under the positive-pressure conditions specified by ASTM E119.

Temperature-rise performance was also assessed.

Meanwhile, the SR 60 curtain wall system was tested for 60 minutes for temperature-rise performance.


Blast and bomb testing

We carry out live detonations at specialised secure sites. This involves subjecting our curtain wall glazing systems to a sequence of heavy blasts – including a lorry bomb followed by a car bomb.


This tests how well the steel and glass absorb the blast's shock waves and helps us verify that our systems meet European performance standards.



Our SG60 curtain wall series is accredited with range test data in line with ISO/DIS, ASTM and GSA standards.

Here's a slow-motion video showing our bomb tests in action.


Ballistic glazing systems

Our ballistic glazing systems are rigorously tested under real-world conditions in UKAS-accredited laboratories and live-fire testing centres. This ensures they correspond to all major British, European and international standards.


Our systems are tested against a range of weapons: small arms, handguns, rifles, shotguns, automatic weapons and armour-piercing rounds.



You can see one of our ballistic glazing system tests in action in this video.


Acoustic glazing systems

Bomb tests, ballistic tests and fire tests are dramatic – acoustic glazing system tests less so. Nevertheless, they're crucial to ensure we take only the best-quality systems to market.


Our acoustic glazing systems for curtain walls, doors, windows and screens have all been tested under real-world conditions to DIN EN 52210. The result is a set of systems that have an average weighted noise reduction of up to 42 dB across the common frequency range.


What components are tested?

It's important to note that, in every case, the whole assembly is tested. That's because a specialised glazing system must be specialised in all respects.


Take a fire-rated glazing system. It's not sufficient for the frame alone or the glass alone to be fire-tested. Every structural component needs to undergo tests: frame, glass, beads, gaskets and all. The same goes for ballistic glazing systems and blast-resistant glazing systems.


This means that, if you invest in a specialised glazing system, you must ensure it's been tested as a whole. The alternative is for a glazing system to be invalidated by an inappropriate structural component, meaning costly replacements and compliance issues down the line.



Wrightstyle is a UK-based provider of curtain walls and specialised glazing systems. If you have any questions about our systems or quality assurance procedures, please don't hesitate to contact us. We strive to offer technical support that's as high-quality as our products.


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