30.01.2026
Architecture

SHEV system: safety and architecture cleverly combined

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Building Design
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Modern architecture, captured by Raúl Mermans García: a harmonious interplay of glass, steel and clear structures.

Architecture and safety – an eternal misunderstanding or an underestimated alliance? SHEV systems, i.e. smoke and heat extraction systems, are caught between design requirements and regulatory dictates like almost no other building technology. But at a time when sustainability, digitalization and convenience are no longer optional extras, but mandatory, the question arises: how cleverly can safety actually be integrated into architecture without the result looking like a fire drill?

  • SHEV systems are key components for fire protection and safety in buildings, but are often the poor relation of architecture in terms of design.
  • Today, new technologies, smart control systems and modular systems open up scope for architects beyond the white domes and ventilation flaps of yesterday.
  • Germany, Austria and Switzerland show different approaches – from standardized pragmatism to visionary pilot projects.
  • Digitalization and AI are fundamentally changing the planning, monitoring and maintenance of smoke extraction systems.
  • The focus is increasingly on sustainability and energy efficiency, even for safety-relevant building products such as SHEV systems.
  • Today, planners need in-depth technical expertise – and the ability to mediate between fire safety regulations and aesthetic requirements.
  • The integration of SHEVS into smart building envelopes remains one of the industry’s most exciting challenges.
  • The debate is no longer just about technology, but also about responsibility, user comfort and holistic building performance.

SHEV systems: status quo between obligation and potential

Any architect or engineer dealing with the topic of SHEVS quickly ends up in a jungle of standards and regulations. In Germany, DIN standards, the model building regulations and a large number of country-specific specifications regulate how and where SHEV systems are to be installed. Austria and Switzerland rely on comparable standards, but in some cases allow more flexibility in the design. The result is a patchwork quilt: while integration into delicate glass façades is celebrated in Zurich, the classic skylight with emergency release often still dominates in Munich. What is striking is that although SHEV systems are required by law, they are usually treated as a necessary evil in terms of design. Yet they have architectural and technical potential that has hardly been exploited to date. Most planners are content with off-the-shelf solutions, as long as the fire protection inspector gives the nod. The result: visible ventilation flaps, coarse motorized drives and architecture that is shipwrecked at the interface between function and aesthetics. But times are changing, and so are the requirements.

With the triumph of sustainable construction methods, the energy aspects of SHEV systems are also coming into focus. Flaps that are open in an emergency are energy weak points, and fixed glazed smoke vents are a horror for passive houses. At the same time, the demand for comfort and flexibility is growing: users want buildings that offer safety without compromising on daylight, indoor climate or design. What does this mean in practice? Today, SHEV systems have to do more than just let air out in the event of a fire. They are becoming part of an integral building concept – and thus an architectural challenge.

Internationally, a differentiated picture emerges. While smart smoke vents have long been networked with building management systems in the USA and the UK, German-speaking countries often remain cautious. Switzerland scores highly with pilot projects that integrate SHEV systems into adaptive façades. In Austria, modular systems that adapt flexibly to changing uses are being tested. Germany, on the other hand, still relies too often on tried-and-tested standard solutions that are safe but rarely innovative. The consequence: if you want to be really clever as a planner, you have to think outside the box of standards – and combine technical, design and sustainability aspects.

The influence of digitalization on the industry should not be underestimated. BIM, digital twins and networked monitoring systems are opening up new ways of planning, monitoring and maintaining SHEV systems. But more on that later. One thing is certain: The classic separation between security systems and architecture is a thing of the past. Anyone planning modern buildings today must understand SHEVS as an integral component. And that means: more knowledge, more coordination, more responsibility.

The debate about SHEVS is no longer just a technical one. It is becoming a question about the quality of construction as a whole. How can safety be designed without it becoming a disruptive factor? How can planners reconcile the requirements of legislators, users and designers? As is so often the case, the answer lies in the interplay of innovation, know-how and a good dose of courage to leave the comfort zone of the standard solution.

Innovations: From emergency solution to design opportunity

Anyone planning SHEV systems today no longer necessarily has to fall back on the clunky solutions of the past. New technologies and products make it possible to integrate smoke and heat extractors in such a way that they are hardly noticeable in terms of design or even become a design element. The spectrum ranges from fully glazed smoke extraction flaps and motor-controlled louvres to façade systems that open individual segments in the event of a fire. Particularly exciting: systems that contribute to natural ventilation in everyday life and only reveal their second identity as lifesavers in an emergency. In this way, SHEV systems become flexible components of comfort and safety at the same time.

However, innovations are not only evident in product design, but also in control technology. Modern systems rely on sensors, networking and intelligent algorithms. They no longer only detect smoke development when the hall is already filled with smoke, but analyze air currents, temperature curves and CO₂ concentrations in real time. In the event of a fire, the system decides independently which dampers to open, how to optimize air exchange and which escape routes to keep smoke-free. This reduces reaction times and increases the chances of survival – a quantum leap compared to the mechanical old-timers of the past.

In Switzerland and Austria, we are seeing a growing number of projects that use SHEV systems as an integral part of innovative building envelopes. Particularly in office and educational buildings, façades are being created that not only adapt to the climate and daylight, but also specifically dissipate smoke in the event of an emergency. In Germany, on the other hand, the fear of breaking the rules continues to dominate – there is too much concern that innovative solutions could fail the fire protection test. However, projects in Zurich and Vienna prove that the courage to innovate and close coordination with the authorities can be rewarded.

Another development is the interaction of SHEVS with other safety-relevant systems. Modern buildings combine smoke extraction, fire alarm systems, sprinklers and access controls into an integrated security management system. This opens up new possibilities, but also new interface problems. Planners who are not up to speed here risk expensive reworking and unnecessary complexity. Because as clever as the technology is, it has to function reliably in the event of a fire, and that requires discipline in planning, execution and maintenance.

Innovations in the field of SHEVS are therefore not an end in themselves, but a tool to raise safety, comfort and design to a new level. They challenge architects and engineers to think beyond the obvious – and to take responsibility for the overall quality of the building. Those who see this as an opportunity can turn an unpopular compulsory exercise into real added value for users and architecture.

Digitalization and AI: SHEVS in the age of real-time monitoring

Digitalization is also turning fire protection upside down – and with it the planning, control and maintenance of SHEV systems. Building Information Modeling (BIM) has long been more than just a buzzword: digital models allow SHEV systems to be precisely simulated in the design phase, integrated without collisions and monitored during operation. Sensors and IoT platforms provide real-time data on temperature, air quality and system status directly to facility management. This opens up completely new possibilities for detecting faults at an early stage and optimizing maintenance. Maintenance by calendar becomes maintenance on demand – a benefit for operational safety, sustainability and budget.

But the real game changer is still in its infancy: artificial intelligence. AI-supported systems can not only evaluate data volumes, but also recognize patterns, predict risks and react autonomously in the event of an emergency. They analyze how a fire could spread in different situations, optimize the control of fume cupboards in real time and learn from every deployment. This sounds like science fiction, but it has long been part of ambitious research projects in Switzerland and Austria. Germany is still lagging behind here – the hurdles in terms of data protection, liability issues and interfaces to existing systems are too great.

However, the networking of SHEV systems also raises the issue of cybersecurity. A hacked security system is highly dangerous – in the truest sense of the word. This requires new skills in the planning team: IT security, data protection and interface management are becoming indispensable skills for architects, fire protection planners and operators. Anyone who takes digitalization seriously must invest here – otherwise a clever solution will quickly turn into an expensive problem.

What does this mean for planning practice? The classic fire protection certificate is no longer enough. SHEV systems must be understood as part of a digital ecosystem. This requires a rethink of the entire planning process: from the selection of components to integration into the building management system. The earlier SHEVS are digitally modeled and linked to other systems, the lower the risk of errors, collisions and retrofitting. The future belongs to integrated planning – and that starts on the digital drawing board.

The integration of digitalization and AI in fire protection is more than just technical progress. It changes the roles of those involved: architects become moderators of complex systems, engineers become data specialists, operators become managers of digital twins. Those who do not continue their education in this area will lose touch – and risk their own architecture being overtaken by technology.

Sustainability, architecture and the new responsibility in fire protection

SHEV systems are not only a question of safety, but also of sustainability. Energy requirements are making traditional solutions increasingly unattractive: open flaps mean heat loss, fixed glazed fume cupboards are at odds with daylight and ventilation concepts. The industry’s answer: multifunctional systems that serve as natural ventilation in everyday life and mutate into lifesavers in the event of a fire. Especially in passive houses, zero-energy or plus-energy buildings, this dual role becomes a key competence.

But sustainability does not end with energy consumption. The manufacture, maintenance and recycling of SHEV components are also coming into focus. Today, architects and engineers have to deal with questions of life cycle analysis, material selection and deconstructability. Certification systems such as DGNB or LEED have long taken fire protection into account – and demand proof that safety and sustainability are not a contradiction in terms. Those who score points here gain a competitive advantage, as investors and users reward holistic solutions.

The integration of SHEV systems into sustainable architecture requires a new understanding of responsibility. It is no longer enough to meet the minimum requirements. Planners are required to consider the effects of their decisions on users, the environment and building operation. This also includes dealing sensitively with conflicting objectives: How much daylight is possible without compromising safety? How can complex façades be combined with effective smoke vents? Those who seek dialog with manufacturers, authorities and users here often find creative solutions – and set new standards.

Another area is social sustainability. In an emergency, SHEV systems must be intuitive to operate and understandable for all user groups. Complex technology must not become a barrier – otherwise the life-saving system quickly becomes a risk. Training, transparent operating concepts and comprehensible visualizations are therefore just as important as the right choice of technology. The architecture must communicate safety without causing fear – a balancing act, but one that is worthwhile.

In the global discourse, there is growing pressure to think about fire protection holistically. International pioneers such as Singapore and Scandinavia show that safety, aesthetics and sustainability are not a zero-sum game. Anyone in Germany, Austria or Switzerland who does not want to fall behind must be open to new approaches, materials and technologies – and be prepared to leave the comfort zone of standard solutions.

Conclusion: SHEV systems are more than an obligation – they are an opportunity for excellence

The integration of SHEV systems into architecture is not a necessary evil, but a stage for innovation, responsibility and creative intelligence. Those who combine technology, design and sustainability create buildings that are not only safe, but also beautiful, efficient and future-proof. Digitalization opens up new opportunities, but also requires new skills – from architects to operators. Those who do not develop further here will be left behind. The future of fire protection is smart, sustainable and integrative. Anyone who recognizes this will turn the security system into a statement for good architecture. And that – despite the obligation to comply with standards – is the best news for an industry that finally wants to build smarter.

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