Yearly Archives: 2021


Forest fires and building resilience / Webinar by ELIPYKA and CFPA-Europe, on Thursday 21 October 16:00-17:00 CEST

The Hellenic Institute for Fire Protection of Structures (ELIPYKA), in collaboration with the Confederation of Fire Protection Associations – Europe (CFPA-E) is organizing a webinar entitled:

Forest fires and building resilience

on Thursday 21 October 16:00-17:00 CSET (Central European Summer Time)

Τhe webinar is free for all and will be in English. To subscribe press here.

Central European Summer Time (UTC+2)

  • 16:00    Introduction, George Mylonakis, General Manager ELIPYKA
  • 16:05    Salutation, Sofia Karma, Dr. Chemical Engineer NTUA, on behalf of the Secretary General of Ministry of Environment and Energy.
  • 16:10    Confederation of Fire Protection Associations – Europe (CFPA-E): our mission,
    Tommy Arvidsson, Manager CFPA-Ε
  • 16:15    Current works in the Natural Hazards Commission (NHC),
    Dr.-Ing. Mingyi Wang, Chair of Natural Hazards Commission, CFPA Europe,
    German Insurance Association, Property and Engineering Insurance, Loss prevention, Statistics, Manager Loss Prevention Property
  • 16:20   The CFPA Guideline “Forest Fires”,
    Miguel Vidueira, member of Natural Hazards Commission, CFPA Europe, Technical Director, Cepretec, Ισπανία
  • 16:35    Forest fires in Italy,
    Dott. Guido G. Zaccarelli, member of Natural Hazards Commission, CFPA Europe,
    Consigliere nazionale AIAS – Associazione professionale Italiana Ambiente e Sicurezza, Ιταλία
  • 16:50    Natural Hazards and climate change.
    Dr.-Ing. Mingyi Wang
  • 16:55    Resilience of Buildings at the Wildland-Urban Interface (WUI)
    Dr. Yiannis Kontoulis, President ELIPYKA

Fire Safety Challenges of Timber Buildings – The program of the SZPV & CFPA Europe conference (Wednesday, September 15th, 2021)

About the Conference

It is estimated that globally, two billion square meters of new building stock are needed every year between now and 2025, especially for housing. Global carbon dioxide emissions have increased by almost 50% since 1990, and as it is seen, in the search for sustainable development, timber buildings seem to take precedence. In addition to environmental friendliness, timber buildings pose some additional risks, such as fire safety.

The online conference will bring together a multidisciplinary group of leading engineers and researchers in the domain of fire risk assessment, building design, and construction. Agenda topics will include design objectives, practical experiences, and research. The conference will provide time for facilitated discussion and dialogue.

Conference fee and registration: 50 € plus VAT, Register today:

Conference program

09.45 – Registration

10.00 – 10.15: Conference Openings

  • Milan Hajduković, president of SZPV
  • Tommy Arvidsson, director of CFPA Europe

Panel 1: 10.15 – 11.00: Design Objectives for Timber buildings – Codes, guidelines, and fire risk evaluations

  • Björn Karlsson, Associate Professor, University of Iceland & CFPA Europe: Comparing the Fire Risk in a Timber Frame Building and a Concrete Frame Building – Design Strategies to diminish fire risk

11.00 – 11.10 Coffe break / Time for sponsor presentations

Panel 2: 11.10 – 12.30: Practical experiences

  • Nik Kumer, Bruno Dujič: Cross Laminated Timber (CLT) – Fire Safety depends on Details
  • Srečo Klemenčič: Fire stopping of service installations in timber fire separating elements
  • Aleš Jug: Firefighting in timber buildings
  • Nataša Knez, ZAG: Improvement of reaction to fire properties of wood by treatment with mineralization

12.30 – 12.45 Coffe break / Time for sponsor presentations

Panel 3: 12.45 – 13.30: Research and Future Steps

    • Robert Pečenko, Tomaž Hozjan (UL FGG) in Sabina Huč (UL FKKT): Fire resistance of timber structures – research and development of design methods
    • Friderik Knez, ZAG: Boosting fire research in Slovenia and South Central Europe with EU funded ERA Chair

13.30 – 14.00 Wrapping up the conference – discussion + Q&A

The right anti-terror measures mean better urban spaces


Anti-terrorism measures allow you to achieve far more than just security. They can also be used to create urban spaces that are functional, attractive and more inviting. This, however, requires that the measures are integrated into the urban space rather than simply being something that is added in isolation.

Anti-terrorism measures have, over the past decade, become one of the parameters that have to be considered when designing urban spaces. They do not have to be synonymous with traffic bollards, concrete blocks or quickly-erected fencing. Anti-terror measures can be so much more discrete and even make for better urban spaces for the benefit of residents and visitors alike.

– We have started using our urban spaces more and are increasingly fitting them out in a way that allows us to spread our wings as a community. This, combined with the terrorist attacks we have seen, means that we have to take anti-terrorism measures into account when designing and planning urban spaces, says Sanne Slot Hansen, an associated partner and MAA landscape architect at Schønherr in Denmark.

Needs to be integrated into urban spaces
As with all the other parameters, such as evacuation, infrastructure, access conditions and climate protection, successful anti-terrorism measures depend upon their integration into urban spaces, instead of simply appearing as an afterthought.

– Anti-terrorism measures in urban spaces can be so well integrated into the design of the urban space that users do not perceive that they are actually anti-terrorism measures. This can support your ambitions for an urban space. Trenches, pits and planted areas can serve as anti-terrorism measures, while at the same time producing greener urban spaces and functioning as climate protection. If you require an urban space with several places to take refuge, you could work with plinths, edges and stairways, which can also serve as protection in a terrorist attack. Anti-terrorism measures can support the function of an urban space, but will only work if you think it into your project as an integrated element, says Sanne Slot Hansen.

There are no legal requirements to consider the need for anti-terrorism measures and its possible layout, which may cause some urban planners to forget about it or not add it into their plans until it is too late.

– A good consultant will ask about this at an early stage of the process, just as they would ask about other project considerations and functions. Changes are expensive to implement if you only become aware of them after the construction phase has already started. When this happens, anti-terrorism measures become an afterthought that uses solutions that are not optimal, or use temporary solutions that end up becoming permanent and are not integrated, Sanne Slot Hansen adds.

Do it with respect
Even though you know what to protect against, it can be difficult to integrate a solution when it comes to securing an existing urban space. One such example might be a city location where incoming vehicles represent a potential threat.

– The solution needs to be implemented out of respect for the location. During the initial phases you should look at how the area is used and how the area could be improved in this respect. A square in the city centre is a site where crowds will typically gather for demonstrations, celebrations and concerts. When protecting against incoming vehicles, you can work with adding green areas to the urban space, for example, such as green belts with trees and plants that vehicles are unable to traverse and which also bring more greenery to the city and can be integrated with climate adaption solutions such as rainwater drainage ditches for rainwater and areas of shade, says Sanne Slot Hansen, continuing:

– You can also work on incoming vehicle access by using chicanes, for example, which can make it harder to accelerate towards a site, while also supporting conditions for soft road users, providing increased refuge and support the site’s architectural qualities. If, for example, there are steps at the edge of the site, it would be an obvious solution to raise them a little more.

Security in balance
Easiest of all would be to enclose the space you want to safeguard with concrete or reinforced bollards, but many urban spaces are characterised by being open and cohesive, which is why such a solution would stick out like a sore thumb.

– What is most important is that anti-terrorism measures do not take over the urban space. Planners have to take into account the architecture and style of the area. The worst you could do is just shield the urban space with concrete or reinforced bollards, for example. It may be safe, but it looks terrible. This destroys the urban space and compromises the open urban spaces that are a Danish tradition and which are unique when we look at the rest of the world, says Sanne Slot Hansen, continuing:

– Good anti-terrorism measures are often not just a single, large blocking solution, but several smaller solutions that have been considered together. Anti-terrorism measures must be in balance with the area’s other functions and must not be viewed in isolation, but must be included as part of the overall whole.

Huge potential to improve fire safety on container ships


Fires on container ships can lead to loss of both life and vast quantities of material assets. Nevertheless, expertise in this area appears to be somewhat lacking.

Container ships have grown exponentially in size in recent years, while crews have shrunk. Neither have technical solutions and regulations in the area followed the dimensional growth of modern ships. There is a poor overview of what is being shipped, which prevents potentially flammable cargo from being placed in appropriate locations on the ship, as well as a lack of certainty that appropriate fire safety systems are installed. Lack of expertise or simple carelessness can mean that freight becomes mixed when inside containers. As a result, flammable materials that will not combust when stored in isolation end up being stored with materials that can easily ignite.

These are some of the many challenges that DBI (The Danish Institute of Fire and Security Technology) discovered when it conducted the CONTAIN project.

– Incidents are rare, but the extent of injuries is potentially enormous, with loss of both human lives and valuable assets worth many millions of Danish kroner. There is also very limited expertise in this area. The aim of the project was to give us insight into the nature of fires in container ship cargo holds. We also examined technical, human and organisational aspects, says Thomas Hulin, project manager at DBI.

Is the crew able to fight fires?
Container freight is a complex sector, which is precisely part of the problem. The sector involves numerous stakeholders: customers, forwarding companies, shipping companies, port authorities, international classification companies and insurance companies, who each consider their own contributions, while there is little knowledge about the issue as a whole.

The project identified various issues that were of interest. One thing that came to light was a degree of uncertainty as to whether crews were suitably equipped to fight fires on board their ships. Many container ship cargo hold fires would be challenging even for professional firefighting teams on shore.

– When a container ship caught fire in Hamburg in September 2016, it took 100 firefighters from local emergency services to bring the fire under control. This is impossible when a ship is at sea, which raises the question of what can be demanded and expected of increasingly smaller crews, who are not even professional firefighters. There is also the question of when a crew should give up attempts to fight a fire and evacuate the ship, as there are currently no regulations for such scenarios today, says Alexander Kleiman, a project manager at DBI.

Ships are increasing in size
Regulations in this sector have also not followed the development that ships continue to increase in size.

– Existing fire safety regulations and the use of fire safety systems are based on the needs of smaller ships and do not have the same effect on ships of the sizes we see today. Fire extinguishing systems, for example, are often intended to extinguish fires in a specific type of cargo and not suitable for other types of fires. We see that a lot of cargo is not correctly declared or is mixed with other types of cargo that the fire extinguishing system is not effective against, says Alexander Kleiman.

At the same time, fire extinguishing systems are often dimensioned to simply limit the spread of the fire, as the crew attempts to extinguish it. This gives rise to a consideration of whether the strategy for the future could be to isolate a fire from the rest of the ship and either let it burn out or wait for assistance rather than fighting it with possible loss of life as a result.

Fire spread after 17 minutes
In connection with the CONTAIN project, DBI has also tested how containers behave in the event of a fire and how fire spreads from container to container. Our tests show that a fire in a container can spread through the door after 17 minutes, that a burning container can ignite the floor of a container above after 20 minutes, and that radiated heat can ignite the contents of adjacent containers.

– We also saw that the rubber container door seals caused drippage of burning droplets when the fire broke through, which can also cause a fire to spread. We are still in the early phase of the collection of technical knowledge about this area, but the knowledge we gain will be highly valuable, particularly with regard to where fire detection and extinguishing systems should be located, says Thomas Hulin. Simulations have also been produced from the fire test data about how a fire spreads in a below-deck cargo hold full of stacked containers.

– We can use data to simulate and investigate the effect of various fire extinguishing systems which can, in the long term, also include factors such as construction statics and how they are affected by a fire. There is no tradition for this type of ‘fire safety engineering’ when building container ships, but it is a discipline that has the potential to offer great opportunities to improve fire safety, says Thomas Hulin.

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Facing this summer’s fire risks: “We have become much better at dealing with forest fires”

“We have become much better at dealing with forest fires,” says Leif Sandahl, fire engineer and expert on forest fires at the Swedish Civil Contingencies Agency, MSB. “After the devastating forest fires of 2014 and 2018, we have significantly increased our knowledge and the local rescue services collaborate more and share resources so that even the smallest town in the most depopulated sparsely populated areas in the north has the opportunity to get help.”

- We also have access to better data, maps, analyzes and models and better forecasts to be able to manage fire risks. We have also strengthened our air resources by now having several helicopters and smaller scooping aircraft on standby via MSB, which can support the firefighting work on the ground. And not least, we have learned and gained many valuable insights. However, I wonder how we would cope with such an exceptional summer as 2018 with the extreme drought and heat that lasted for a very long time, says Leif Sandahl.

The weather should therefore not be underestimated as the cause behind forest fires and the extreme fire processes that can occur with large burned areas. It has not been classified as a climate issue (yet) – but one thing is clear: the summer of 2018 was exceptional, according to experts. In addition to drought and heat for a long time, there are unusually many thunderstorms and thousands of lightning strikes that hit an impoverished, dry forest while there were unusually many ignitions caused by rail traffic – it is clear that it was not a coincidence that forest fires became so large in 2018. Leif Sandahl emphasizes, however, that the development of fire and the spread of fire in 2014 was even more extreme, partly because aviation fires arose and spread several kilometers over lakes.

Local resources are needed

Were we not sufficiently prepared for the great forest fires? The expertise is that the fire risks in the years before 2000 were worse and perhaps the preparations were better then. According to researchers at RISE, the indicators for fire have been lower over the past 20 years and one can speculate that one may have mentally relaxed and not been prepared for large fires to rage again.

Add to that the fact that there have been major structural changes in society that impair fire safety. The forests that are on fire are mainly in Norrland and in the depopulated sparsely populated areas there are few local fire stations left. Forest owners often live far away from their forest lands, which also does not facilitate monitoring and access to resources.

- We would probably need to engage more volunteers in the area, who are nearby and can quickly help, says Leif Sandahl.

When the Rescue Service has to drive a longer distance on rugged forest roads – and when resource reinforcements are needed, they can have 10 300 km to the accident site – the important first effort often comes (too) late if there are no local resources in place that can start the firefighting work. Even if the rescue services cooperate and thus have access to more resources, there are still long distances to reach the fire. Successful firefighting work is about quickly attacking the small fires and extinguishing them so that they do not have time to grow and guarding any hidden embers so that the fire does not flare up again. The major fires in 2018 were flaring fires that had been extinguished for 70% of the burned area. The landowner is responsible for guarding after a forest fire that has been extinguished, but the risk is that there remain hidden embers. How this important surveillance work is to be handled in order to avoid unnecessary re-ignitions is being worked on by a group within Skogforsk, the Swedish Forestry Research Institute.

There is another problem, says Leif Sandahl.

- We have about 2-3000 unnecessary fire incidents in forests and land per year. And it is not forestry that is careless. A small fire can develop into a large fire if it is not extinguished quickly, within 1-2 days, says Leif Sandahl.

We must also make the public better understand the risks and what causes fires and behave accordingly when staying in nature, Sandahl concludes.


Summer car welding causes unnecessary fires every spring

Every spring, summer car welding and other hot work causes unnecessary fires. A high risk of fire is caused, for example, by failure to protect the working environment. This spring, a few fires have already been caused by hot work related to car repair, and more are likely to be expected. Last year, a total of 25 car repair fires broke out. Experts from the Finnish National Rescue Association have some practical advice on how to avoid the last-minute burning of the car you wanted to repair.

There were 25 fires related to car tuning last year, and 21 the year before. The numbers are not that large, but the loss of a beloved car can be upsetting, and the fire could also cost lives or cause damage to other property. Finnish National Rescue Association offers safety information on how to avoid car repair fires this spring. Many car enthusiasts are already anxious to get behind the wheel of their summer cars, but there are a few things you could do to ensure that you eventually get on the road safely.

‘A large number of the fires are caused by failure to ensure the protection and tidiness of the working environment. If you’re using an angle grinder, the working area must be protected with a special spark protection fabric or, for example, a protective shield made of sheet metal, to prevent sparks from spreading and starting a fire,’ says Heli Hätönen, Head of Training at Finnish National Rescue Association.

It is also a good idea to inspect the environment before starting. Fires have been started, for example, when welding sparks or splatters have set fire to oil or debris on the floor. In addition to protection, the car tuner should also be aware of how heat behaves. When metal heats up, the heat is conducted in the metal. That is why, for example, the upholstery of the car should be removed and the petrol in the fuel tank replaced with water, if welding work is done near them.

Welding is not permitted in garages

Insurance companies’ terms and conditions usually forbid welding and other hot work in garages and carports. The warehouses and recreational facilities of apartment buildings are also not suitable for the purpose, as they are not designed to withstand fire hazardous or potentially explosive activities.

Where, then, can welding be done, if not near a residential building? Is a barn-connected warehouse or a hangar okay, if the tuning area is separated from other areas with a Gyproc plasterboard or a fire-resistant curtain? According to Ms Hätönen, this depends on the terms and conditions of the property insurance, which should always be reviewed before starting.

Outdoor spaces are often easier but pose a risk of grass or forest fires. No hot work should be done in windy weather or during grass and forest fire warnings. A bigger sand or asphalt area would be ideal, provided that there are no buildings nearby. A distance of 15–20 meters to buildings and other cars is not exaggeration, as sparks can fly for up to tens of meters. However, it is important to stop sparks from spreading from the hot work area.

What if you just can’t wait to get on the open road with your fabulous summer car? Can’t safety be compromised just a little bit, if you’re in a hurry and have a spring in your step?

‘As a car enthusiast, you’ve probably already put a lot of time and effort into renovating the car, so for goodness’ sake, don’t burn it now!’, Ilpo Leino, Senior Specialist at Finnish National Rescue Association, cries out. ‘People eager to ride the car and even your buddy’s car may also be at risk, if you tune them together and sparks start to spread,’ Mr Leino says.

Speaking of sparks spreading, the Rescue Association’s experts have some practical advice to offer on that, too. The angle grinder can be directed so that the sparks cannot fly far, and the interior of the car can be protected with a fire-resistant fabric. A fire blanket won’t work, however, as the sparks will burn through it.

Reserve enough time for post-control

Even if you have adhered to all of these welding safety measures, you cannot leave the area immediately after you’ve finished your work. The experts from Finnish National Rescue Association recommend monitoring the area for smoldering for at least an hour after you’ve finished.

‘You may not notice a smoldering fire until it bursts into flames’, reminds Ms Hätönen.

‘It is also advisable to keep first-aid fire extinguishing equipment nearby and practice using them in advance, so that you won’t put yourself in danger,’ she continues.

  • hings car enthusiasts should know about safe tuning:
  • Check the insurance company’s terms and conditions about the safety regulations.
  • Hot work, such as welding, cannot be done in a garage or inside or near a residential building.
  • When welding, other vehicles must be far enough away, the upholstery of the car should be removed as much as needed, the petrol tank should be removed or filled with water, and the tyres should be protected or removed.
  • Remove all combustible materials and liquids as well as gas cylinders from the working area.
  • When tuning the car outdoors, consider the risk of forest or grass fires and check the warnings issued by the Finnish Meteorological Institute: fi/varoitukset.
  • Sparks can fly for tens of meters.
  • Direct the angle grinder so that the sparks cannot fly far.
  • A fire-resistant fabric can be used as a protective cover to prevent sparks from flying to the surrounding environment. A fire blanket won’t do, as the sparks will burn through it.
  • Have some water and first-aid fire extinguishing equipment nearby and learn how to put out a starting fire.
  • Do not weld just before you’re about to leave, but watch the car and the surrounding area for at least an hour, even longer if necessary.

VdS: New Guidelines for reliable sprinkler pipe connections

Compact Guidelines VdS 2100 for dependable pipe connection elements and fittings renewed; comprehensively supplemented with findings for reliable production with regard to leak tightness and stress crack resistance, as well as other aspects.

Cologne/Germany, June 2, 2021. The decisive instant protection in case of fire (more often than every 5 minutes in a company in Germany): automatic sprinkler systems. An important part of these systems are of course the pipes that bring the extinguishing water exactly into target. To ensure a stable water supply, VdS supports manufacturers all over the world with precise specifications for e.g. reliable connections.

The Guidelines “VdS 2100-06, Pipe Connections, Requirements and Test Methods” have now been renewed by Europe’s largest institute for fire protection with technical innovations as well as additional risk minimisation. “Design specifics, details on documentation, torsion and flame resistance, etc. – we have summarised all the important new findings in compact 19 pages, including informative graphics and tables”, emphasises Frank Bzdega, head of the VdS laboratories for water extinguishing systems. “All with the aim of making it easier for developers to produce safe quality and to offer installers, operators, insurers and authorities the highest level of reliability in use.”

VdS offers the revised Guidelines free of charge. You can find “VdS 2100-06, Pipe Connections, Requirements and Test Methods” at Also updated and available there are the Guidelines VdS 2100-30 for pipe fittings.


Accreditation of Technical Inspection Services of VdS in Poland

From 17th of December 2020, the Technical Inspection Services of VdS Schadenverhütung Sp.z o.o. in Poland was accredited according to EN ISO / IEC 17020 as inspection body type A. It took about 6 months from the application to the receipt of the certificate. We were able to convince the PCA (Polish Centre for Accreditation) of our know-how and thus the Technical Inspection Services of VdS Schadenverhütung Sp. Z o.o. is the first accredited inspection body in Poland for testing fixed fire protection systems in accordance with: PN-EN, VdS, NFPA, FM, ISO and CEA. The scope of accreditation includes: sprinkler systems, water spray extinguishing systems, water mist extinguishing systems, foam systems, gas extinguishing systems, oxygen reduction systems, spark extinguishing systems, hydrant systems, kitchen protection systems and fire alarm & detection systems. The full scope of the accreditation of the inspection body type A – No. AK 036 from December 17, 2020 is available at | to find


VdS-FireSafety Cologne 2021 – no-risk booking for exhibitors

With expert conferences, a trade fair and free-of-charge themed forums again this year: VdS-FireSafety Cologne will provide an attractive setting for exhibitors at Koelnmesse on 8th and 9th December 2021. Exhibit spaces can now be booked.

Cologne/Germany, April 08th, 2021. The VdS Training Centre is looking to December with optimism and expects to be able to stage VdS-FireSafety Cologne 2021 once more complete with a trade fair, themed forums and high-calibre expert conferences. After the trade fair had to be cancelled last December, VdS-FireSafety Cologne is again providing exhibitors and visitors with a versatile setting for expert discussions.

Zero-risk option for exhibitors

VdS-FireSafety Cologne is one of the foremost annual events in the industry for fire prevention and protection; it is renowned for its high-calibre trade visitors. This trade fair thus offers providers from the field of fire prevention and protection the ideal setting for presenting their products and services to interested expert visitors. The venue is the familiar Koelnmesse fair site. Booths can now be booked with immediate effect for 8th and 9th December 2021.

Since the Corona situation is still rather unpredictable in 2021, the VdS Training Centre is providing a zero-risk option: exhibitors can cancel their participation in the trade fair free of charge up until 31st August 2021.


Tours of the trade fair arouse interest in the solutions from exhibitors in the fields of fire protection systems, and structural and organizational fire protection.

Much attention, favourable terms

An exhibition area with a complete trade fair booth can be booked for as little as €232.50/m² for the entire duration of the event.

In addition, all exhibitors are invited to stage live demonstrations, and particularly striking displays can be included as stations in the guided tours of the fair. The Exhibitor Forum in the exhibition hall also offers an attractive platform for presenting new products, technical features and services.

Further advantages are the free admission vouchers for customers, and the perfect opportunities for networking with domestic and international participants.

For further information:


New event 29 April 2021 for the first time: the VdS-BrandSchutzTalk (VdS-Fire Safety Talk)

During the evento the xperts share knowledge, experiences and perspectives on current industry topics. For interested spectators, participation is free of charge, registration at  is sufficient.

These are the topics on April 29:

Talk 1 – 09:30 a.m. – 11:00 a.m.
Verifications for fire alarm project planning in normative border areas
Moderator: Carsten Meißner, Siemens AG
Experts: Torsten Pfeiffer, VdS Schadenverhütung GmbH; Prof. Dr. Jörg Reintsema, Dr. Reintsema Ingenieur GmbH; Dr. Simon Trippler, GTE; Dieter Hennig, Siemens AG

Talk 2 – 11:15 a.m. – 12:45 p.m.
Protection concepts for flammable liquids
Moderator: Carsten Tormöhlen, Allianz Technical Experts
Experts: Frank Bieber, VdS Schadenverhütung GmbH; Stefan Falk, CALANBAU Brandschutzanlagen GmbH; Thorsten Gieseke, Minimax Europe/FSG; Torsten Wagner, Wagner Group GmbH

Talk 3 – 2:00 p.m. – 3:30 p.m.
Partitioning systems in practice
Moderator: Hardy Rusch, VdS Schadenverhütung GmbH
Experts: Thomas Krause-Czeranka, MPA NRW; Marc Zimmermann, Zapp-Zimmermann GmbH; Dipl.-Ing. Ingo Heinsch, Löschmann + Partner; Knut Czepuck, Supreme Building Inspectorate NRW

If you feel like it, register for free to follow the talks live on your own computer!