Insulated performance. Single-glazed proportions.
Vacuum glazing across our systems
%
Free air when open
Years
VIG in our louvre systems
Better thermal performance has traditionally meant more glass: thicker units, heavier frames, deeper reveals and less light. The façade ended up working against the architecture.
Vacuum insulated glass changes that. Replace the gas cavity with a vacuum and heat loses its main path across the unit. You get insulation comparable to conventional double glazing, in a fraction of the depth.
The technology isn’t new. It began in Australian research in the early 1990s and has been proven in buildings worldwide since. What’s new is making it move. For close to a decade, we’ve engineered vacuum glazing into operable louvres across our thermally broken and large-format systems, so a façade can insulate and ventilate at the same time.
Vacuum insulated glass is a sealed unit with a vacuum, rather than air or inert gas, between two panes.
In a conventional insulated glass unit, the argon cavity slows heat transfer but doesn’t stop it — gas molecules still carry energy across the gap. Remove the gas and you remove the mechanism. What holds the panes apart against ten tonnes per square metre of atmospheric pressure is a grid of micro-spacers, imperceptible at normal viewing distance, sealed at the edge with a hermetic glass frit. No organic gasket, nothing to degrade.
The insulating layer is 0.3mm rather than 12mm. That single change is what allows an insulated unit to work as a rotating blade.
Insulated performance at close to single-glazing depth. Sightlines, reveal depths and existing openings stay as drawn.
04
Every glazing decision trades thermal performance against depth. In an operable blade, depth is not a preference, it is a limit.
Low-e laminated glass suits most louvre applications, offering safety, durability and solid solar control in a slim profile. A double-glazed unit adds insulation but needs 24mm or more, which is too thick and heavy for most louvre blades. When a project needs higher thermal performance without the added depth, vacuum glazing provides it at close to single-glazing thickness.
The difference shows at the system level. In SJ Espacer, moving from 8.38mm low-e laminated glass to 10.3mm vacuum glazing reduces the total window U-value by around half, from Uw 3.43 to 1.75, within the same frame.
We recommend vacuum glazing in two of our louvre systems — the two where the frame and the glass work together to deliver the best thermal result. The build differs in each, because the job does.
SJ Thermique
SJ Espacer
SJ Thermique
SJ Espacer
Thermally broken Frame and bearers
SJ Thermique
6.5mm
SJ Espacer
10.5mm
SJ Thermique
6.2mm
SJ Espacer
8.3mm, 9.2mm or 10.3mm
SJ Thermique
Annealed
SJ Espacer
Toughened or Laminated
SJ Thermique
135mm
SJ Espacer
235mm
SJ Thermique
Uw 3.89 W/m2K
SJ Espacer
Uw 1.75 W/m2K
The thinnest route to thermally broken louvre.
At around 6mm, vacuum glazing is the same depth as the single glazing it replaces. Paired with a thermally broken PA66 Louvre bearer, it closes both heat paths through a louvre — glass and frame — without adding depth to the blade.
The specification of choice where sightlines, reveal depth or an existing opening set the constraint.
Performance at architectural scale.
Our large-format louvre system, designed for façades where the louvre is part of the architecture. Wide blades and a thermally broken frame give vacuum glazing room to perform, with insulation and solar control in a façade that still opens for natural ventilation.
The specification of choice for façades that need to insulate, ventilate and make a statement.



Project-specific performance data and specification advice — most useful early in design.
You’ll receieve access to our 52 page complete Design Manual that includes:
You’ll receieve access to our 52 page complete Design Manual that includes:
The complete turnkey air quality solution that can deliver on environmental, economic and social benefits for built environments across Australia. In this brochure, you will find:
The complete turnkey air quality solution that can deliver on environmental, economic and social benefits for built environments across Australia. In this brochure, you will find:
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Get all the information you need—from design and specification through to installation, warranty, and maintenance.
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Get all the information you need—from design and specification through to installation, warranty, and maintenance.
As the most recent addition to the Safetyline Jalousie family, Ali is still coming to terms with the fact that a typical telephone conversation will often be answered with “You’re calling from Safety what”? followed by having to sound out and spell the name “ja-lou-sie” (it happens to us all). Born in Lebanon, Ali has moved around a lot over the years, living in Cyprus, Sydney for most of his Schooling, as well as China and Hong Kong. He currently resides in Melbourne where he spends a lot of time in his garden or doing some sort of work around the house. (Not too dissimilar to many other Melburnians following the onset of Covid). With a very obvious cultured background, Ali is warm and talkative and he’ll get you talking too.
Adam is our strategist and big ideas generator whose somewhat reserved nature could have some mistake him as a bit of an introvert. But that’s only until this quiet thinker is given a whiteboard and a marker – and then there’s no stopping the dialogue! 7 Years in at Safetyline Jalousie, Adam is continually expanding on his knowledge of the construction industry and is incredibly driven in his pursuit to help create better buildings via the use of better products. When Adam’s not on his quest to improve Australia’s built environment he’s spending most weekends escorting one of his 4 young kids to birthday parties, sometimes multiple parties. He has some stealth survival tips for other parents currently in the same predicament.
Michael has become recognised at Safetyline Jalousie for his continually changing hairstyles (facial hair included). Buzz cut, undercut, dreadlocks, even a mullet. We’ve see it all. His current man bun could even be gone before we finish this sentence. Always up for a laugh, friends and colleagues love a chat with Michael, and his easy-going and approachable nature has earned him the respect of all staff. In fact, he even has a cohort of followers on the factory floor sporting his same hairstyles. Outside of work Michael has recently turned his attention to mountain bike riding. His very first ride ended with a pretty serious accident resulting in a deep puncture wound to his leg– it’s been a sore topic for his leg and his ego.
Mandy has been with Safetyline jalousie since day one so would technically be considered a geriatric in “Jalousie years”. Whilst her role has changed and evolved over her time with the business, one thing that hasn’t is the happy and fun, team culture that she says “continues to make each day at work a joy”. As a mum of two little ones, Mandy thrives on new challenges and a little bit of chaos. Although, as a self-proclaimed clean freak, she ensures that all forms of chaos are kept in a very neat and tidy manner. We’ve also observed that Mandy appears to have an inherent fear of colour and will almost only ever be seen in black or white (or sometimes grey if she is being really out there).
As a busy mother of 4, Lisa is highly skilled in organising, delegating, and troubleshooting – the proficiencies which she also demonstrates in her daily management of the Safetyline Jalousie office. Lisa tells us that she lives by the saying “What doesn’t break you makes you stronger”. (No doubt she’s had to use this little piece or personal encouragement from time to time to deal with our infinite requests)! Always on the go, Lisa has a very active lifestyle and starts every day with a walk to the beach with her husband and two dogs. Of an evening she still has the energy to spare for star jumps and squats in her makeshift gym/ (our office) before heading home to her other full-time job as “mum”.
Leigh aka “Wolfpack” is one-half of the driving force behind Safetyline Jalousie and comes with two decades of experience within the Australian manufacturing and construction industry. The multi-award-winning entrepreneur and father of three youngsters is a passionate advocate for supporting Australian-made goods and improving the built environment for future generations to come. Always up for a challenge, Leigh never sits still and is constantly pushing himself to test his physical and mental endurance. He’s given just about everything a go. From amateur MMA fights, triathlons, or personal development endeavours, Leigh stands by the motto, ‘I never lose, either I win or I learn’.
Enter your details to unlock our architect-ready downloads, including PDF overviews, DWG, and DXF CAD files, Revit models, design manuals, and guides.
Get all the information you need—from design and specification through to installation, warranty, and maintenance.
You’ll receieve access to our 52 page complete Design Manual that includes:
Enter your details to unlock our architect-ready downloads, including PDF overviews, DWG, and DXF CAD files, Revit models, design manuals, and guides.
Get all the information you need—from design and specification through to installation, warranty, and maintenance.
You’ll receieve access to our 52 page complete Design Manual that includes: