Category: Construction

  • Digitalization in the real estate industry: progress with headwinds

    Digitalization in the real estate industry: progress with headwinds

    The industry’s digital maturity level has fallen slightly in 2025. This is shown by the Digital Real Estate Index 2025: on a scale of 1 to 10, the level of digitalization in the real estate industry currently stands at 4.0 points, a decline compared to the previous year (2024: 4.6 points). There are many reasons for this. Increasing complexity, insufficient data quality, cost pressure. This development affects almost all company sizes and roles, but to varying degrees.

    The digital divide is deepening
    The digital divide is particularly evident when it comes to company size. Although the decline affects all categories, small companies in particular are struggling the most with the cost and financing of digitalization. Medium-sized and large companies are able to maintain their lead to some extent.

    Changing roles
    There are major differences between the various roles. Facility management service providers and property managers were even able to slightly increase their digital maturity. The situation is different for planners, construction companies, owners and investors: Here, disillusionment is spreading with regard to digital maturity. In particular, the consistent use of Building Information Modeling (BIM) across the entire life cycle remains a major challenge. In turn, users and tenants are more critical of their digital maturity than in the previous year.

    Perceived stagnation instead of a spirit of optimism
    The industry’s perception is increasingly in line with the measured values. An increase in critical assessments could already be observed in the previous year. This trend is even more pronounced this year. The majority of respondents speak of stagnation rather than major progress.

    Technologies: Benefits recognized, limited use
    Artificial intelligence has found its place in the industry’s consciousness. In the ranking of the most useful digital technologies, Artificial Intelligence & Machine Learning occupies third place. Given the rapid development and increasing presence of AI in the form of Large Language Models (LLM), this is hardly surprising. However, actual use is lagging behind: not even a fifth of respondents are already using the technology. The situation is similar for data analytics. The industry also sees great benefits in this area and is making efforts to increase its use, but the potential has still not been exhausted. Platforms and portals remain the frontrunners among the technologies.

    Conclusion: Maturity also means reflection
    The current decline in digital maturity does not mark a step backwards, but rather a phase of classification. This is because the real estate industry has recognized that digital maturity does not come from buying tools, but from their measurable benefits. An initial digitalization push is followed by disillusionment, triggered by high integration costs, a lack of standards and inadequate data strategies. At the same time, companies’ understanding of their own level of maturity has grown.

    As a result, the view has become more critical, but also clearer. There is a growing realization that many digital initiatives fail because they are implemented as pure IT projects and too little attention is paid to organizational and human factors. Without clear governance, appropriate competencies and the consistent involvement of employees, the added value remains limited.

    A more realistic attitude opens up the opportunity to make future steps more targeted, more effective and more successful in the long term. Real progress is made when digital transformation is no longer seen as a project with an end date, but is recognized as a permanent management task.

  • New white paper: ‘’Cooling buildings efficiently’

    New white paper: ‘’Cooling buildings efficiently’

    Although the impact of climatic changes differs depending on the location and use of the building, in future almost every residential and office building will require cooling. Anyone planning a new build is well advised to carry out an analysis of exterior and interior comfort levels, define summer heat insulation requirements and maximum acceptable interior temperatures, and request proof of thermal comfort. For existing buildings that don’t meet current or future requirements in summer, there are other viable measures that can be implemented.

    With comfortable indoor temperatures increasingly considered a criterion for rentability, it makes sense for property owners to invest in climate control for their properties. Buildings with a high level of climate comfort are future-proof, their market value increases and they usually attract higher rental income.

    The new white paper, ‘Cooling buildings efficiently’ (23 pages), shows how we can build or renovate properties today to ensure they continue to offer a high level of comfort in the climate of the future.

  • Transformation programme proves effective at access technology specialist

    Transformation programme proves effective at access technology specialist

    Dormakaba generated total sales of CHF 1.362 billion in the first half of the 2025/26 financial year, i.e. up to 31 December 2025, representing a decline of 4.1 per cent compared with the same period of the previous year. While volumes were down, “consistent price realisation” resulted in organic growth of 2.0 per cent, according to a statement. Adjusted earnings before interest, taxes, depreciation and amortisation (EBITDA) amounted to CHF 211.9 million, 1.9 per cent less than in the same period of the previous year. The EBITDA margin, on the other hand, increased from 15.2 to 15.6 per cent.

    “In the first half of 2025/26, we continued to consistently implement our transformation and increased our adjusted EBITDA margin. We are on track with the implementation of our strategy and have realised the planned cost savings from our transformation programme ahead of schedule,” CEO Till Reuter is quoted as saying in the press release.

    The company confirms its forecast for the full year 2025/26. Dormakaba expects organic net sales growth of between 3 and 5 per cent, an adjusted EBITDA margin of more than 16 per cent and an adjusted operating cash flow margin of between 11.5 per cent and 12.5 per cent. This margin was 4.5 per cent in the first half of the year, compared with 7.4 per cent in the same period last year.

  • Research develops climate-friendly alternative to cement

    Research develops climate-friendly alternative to cement

    The production of cement as a binding agent for concrete accounts for 8 per cent of global carbon dioxide emissions. Researchers from various European universities and institutes are working under the leadership of the Karlsruhe Institute of Technology (KIT) in Germany to develop alternatives to cement. According to a press release, the Zug-based building materials manufacturer Holcim is involved in this research work as part of the European C-SINK project.

    The research focuses on magnesium-containing silicates, which react with CO₂ to form magnesium carbonate in a targeted, accelerated mineralisation process. This additive could be the new binder for concrete, replacing Portland cement clinker. The material is currently being tested in the KIT laboratories with the participation of all parties involved. This involves close integration of simulation, experimental research and large-scale, realistic testing at the Materials Testing Institute in Karlsruhe. “We can use simulations and machine learning to predict which concrete formulations will work,” says Frank Dehn, head of the Institute for Solid Construction and Building Materials Technology and the Karlsruhe Materials Testing and Research Institute at KIT, quoted in the press release. “We then use experiments in a targeted manner to verify these predictions. In this way, we want to develop reliable parameters that show that concrete with the new binder is climate-friendly and meets the requirements for load-bearing capacity, durability and safety.”

    The project is funded by the European Innovation Council (EIC) as part of the Pathfinder programme “Towards cement and concrete as a carbon sink”. In addition to KIT and the coordinating PAEBBL AB (Sweden), the Technical University of Delft (Netherlands), the Catholic University of Leuven (Belgium), the Agencia Estatal Consejo Superior de Investigaciones Científicas and PREFABRICADOS TECNYCONTA S.L. (both Spain) are also involved, with support from Holcim Technology. The project is funded with 4 million euros over a period of four years.

  • New technology extends the service life of old bridges

    New technology extends the service life of old bridges

    The bridges, which were built in the 1980s, are showing increasing signs of fatigue and need to be repaired. Researchers and engineers from the Structural Engineering Department at the Swiss Federal Laboratories for Materials Science and Technology (Empa) in Dübendorf are working on new methods for renovating these bridges. For their experiments, they are using a bridge deck made of ultra-high-performance fibre-reinforced concrete (UHPFRC) reinforced with shape memory steel, according to a press release. This steel is an iron-based steel made from an alloy containing manganese, silicon and chromium, among other elements. The fibre-reinforced concrete is bonded to this steel. When heated, the steel contracts and closes any cracks that have appeared in the concrete.

    The researchers led by Angela Sequeira Lemos and Christoph Czaderski carried out corresponding experiments in Empa’s construction hall. Five concrete slabs, each five metres long, simulate bridge elements. One of these remained unreinforced, while the others were reinforced with conventional reinforcing steel or shape memory steel. For the test, cracks were made in the slabs to simulate real-life wear conditions. The results showed that the combination of fibre-reinforced concrete and shape memory steel was more effective. It was able to close cracks and lift sagging bridge sections. “We were able to show that our system not only works, but can actually revive existing bridges,” Angela Sequeira Lemos is quoted as saying in the press release.

    The research project was funded by Innosuisse and supported by OST– University of Applied Sciences of Eastern Switzerland, re-fer, a spin-off of Empa in Seewen, and the Swiss Cement Industry Association cemsuisse. A practical test on a real bridge could spark interest from industry. “And with increasing demand, material costs are also likely to fall – then this technology could bring about lasting change in bridge renovation,” Sequeira Lemos is convinced.

  • New cooperation improves precision in surveying and construction

    New cooperation improves precision in surveying and construction

    Fixposition announced a collaboration with Topcon Positioning Systems at the Geo Week 2026 trade fair. The fair is taking place in Denver, Colorado, until 18 February 2026. According to a press release, the Schlieren-based specialist in real-time kinematic (RTK) and visually assisted positioning will provide its solutions to the Californian company. The technologies developed by the spin-off of the Swiss Federal Institute of Technology Zurich, founded in 2017, are to be integrated into the high-precision satellite-based positioning systems of the Californian company Topcon.

    Topcon offers high-precision GNSS (Global Navigation Satellite System) positioning technologies for geomatics, construction and agricultural applications worldwide, according to Ron Oberlander, head of Topcon’s Geomatics platform. The integration of Fixposition’s visual positioning technologies will help his company create added value for its customers.

    “Fixposition has developed technology that improves satellite positioning and benefits users even when working inside buildings and transitioning between indoor and outdoor areas, without disrupting the workflow, by combining RTK-GNSS with artificial intelligence to ensure positioning accuracy. We see this AI-powered technology as an innovative integration into our next-generation GNSS solutions.”

    Zhenzhong Su, CEO and co-founder of Fixposition, says he is “proud to deliver Fixposition’s xFusion, Vision and multimodal fusion positioning technology to support Topcon’s next-generation GNSS solutions. We look forward to bringing this new solution to market and helping surveying professionals in geomatics, construction and agriculture achieve faster results and do more without compromising on quality, even in environments where GNSS connections are difficult.”

  • Energy sales vary from region to region

    Energy sales vary from region to region

    Industrielle Betriebe Interlaken AG (IBI) sold around 96 million kilowatt hours of electricity in its distribution network in 2025. This represents a slight decrease of 0.9 per cent compared to the previous year. At 13.2 million kilowatt hours, own production was 12 per cent below the previous year’s figure. According to a statement by the energy and water supplier in the Interlaken area, this was due to warranty work on the hydroelectric power plant on the shipping canal.

    The decline was more pronounced in the case of gas. Sales fell to 35.9 million kilowatt hours, which corresponds to a decrease of 19.7 per cent. According to IBI, large customers in particular had optimised their systems or switched to alternative heating systems.

    Water sales in 2025, on the other hand, were 1.1 per cent above the previous year’s figure at around 1.8 million cubic metres. The proportion of spring water was 97 per cent, compared with 99.4 per cent in the previous year. The reason for the decline was cleaning and inspection work on the infrastructure facilities in the Saxettal valley.

    IBI reduced electricity prices by around 24 per cent in the reporting year. This was because the company was able to purchase energy for 2025 at a lower price following the price increases from mid-2022 onwards. In addition, the national grid company Swissgrid also reduced the costs for system services and electricity reserves.

    IBI switched from a dual tariff to a single tariff at the beginning of 2026. The dual tariff, which had been in place since the 1960s, shifted part of electricity consumption to night-time. The strong expansion of photovoltaics has now changed the logic of electricity production and consumption, with solar power being fed into the grid during the day.

  • Biogas plant to be converted to biomethane production

    Biogas plant to be converted to biomethane production

    Axpo Biomasse AG now operates a biogas processing plant in Aarberg instead of the previous combined heat and power plant. The fermentation plant in Aarberg processes around 20,000 tonnes of regional biomass into electricity and natural fertiliser every year. The biogas produced in this process is now processed into biomethane and fed directly into the existing gas network.

    Previously, the biogas was used to generate electricity and heat. The changeover is intended to make more efficient use of the energy content of the biomass used. “In this way, we are making another important contribution to the decarbonisation of the energy supply and to regional value creation,” says Daniel Gobbo, Head of Axpo’s Biomass Business Unit.

    The biomethane produced is purchased by Energie Wasser Bern (ewb), the energy supplier for the city of Bern. According to the announcement, ewb has signed a contract for the complete purchase of the production. Transport will be via the Seelandgas AG network. For possible surplus quantities, Gasverbund Mittelland (GVM) is also building a pressure boosting station so that the gas can be fed into the Gasverbund Mittelland high-pressure network.

    By purchasing the gas, Energie Wasser Bern is contributing to the promotion of biogas production in Switzerland. “By purchasing gas from the Aarberg plant, ewb is consistently pursuing its strategy for a CO2-neutral energy future and strengthening sustainable security of supply,” says Marcel Ottenkamp, Head of Energy Management at ewb.

  • Swiss speciality chemicals drive expansion in the sealant market

    Swiss speciality chemicals drive expansion in the sealant market

    Sika has announced the acquisition of Akkim, a Turkish company specialising in adhesives and sealants. The Zug-based specialty chemicals group aims to expand its customer reach and strengthen its market position in the global adhesives and sealants industry. According to a statement, the acquisition is expected to be completed in the third quarter of 2026.

    Akkim, based in Istanbul with two production facilities in Turkey and Romania, distributes adhesives and sealants for the construction sector via a wide-ranging customer network. Established distribution channels in Eastern Europe, Central Asia, the Middle East and North Africa enable it to serve a broadly diversified customer base. According to the announcement, net sales in 2025 amounted to the equivalent of CHF 220 million.

    Sika expects the greater geographical reach to provide significant growth opportunities. “The acquisition will enable Sika to establish a highly efficient production and export hub for sales-oriented adhesives and sealants, which will support long-term growth in this segment,” the statement said.

    Sika also intends to use Akkim’s additional expertise and broad network to expand its e-commerce business and offer complementary products such as repair mortars and sealing solutions through cross-selling.

  • New process brings decorative high-performance wood into series production

    New process brings decorative high-performance wood into series production

    The Koster AG Holzwelten joinery, a family business based in Gossau, has developed what is known as marble wood in collaboration with Empa. Marble wood is characterised by a pattern of fine black lines caused by a fungus. This unique wood, once a rare chance find, is now produced in an annexe of the carpentry workshop using stainless steel containers, laboratories and climate and vacuum chambers. According to a press release, the product is now being marketed under the name Myrai.

    As part of a joint Innosuisse project, the carpentry workshop and Empa developed a standardised, scalable process for the targeted production of marbled wood. In a vacuum chamber, boards made from native hardwoods such as maple, beech or ash are brought to the correct moisture content, sterilised and inoculated with the fungus. They then spend several weeks in a climate chamber to allow the fungus to grow and the resulting patterns to develop. Finally, the wood is dried in a technical process and the fungus dies.

    “The special thing about this fungus is that it does not break down the highly lignified areas of the cell wall, so the wood retains a high degree of bending stiffness,” says Empa researcher and fungus expert Francis Schwarze, who works for the Cellulose & Wood Materials Laboratory in St. Gallen, quoted in the press release.

    The resulting marbled wood is particularly suitable for decorative applications such as furniture, interior design and musical instruments. As part of the project, the carpentry workshop has developed expertise in controlling and refining the appearance of the wood. Jakob Koster, former CEO of Koster AG Holzwelten, will now focus on the sale and further innovation of marbled wood. According to Koster, demand is already high. The carpentry workshop and Empa also already have new ideas for further collaboration.

  • Positive employee reviews earn Top Company award

    Positive employee reviews earn Top Company award

    The ERNE Group has been named a Top Company three times by the German employer portal kununu. According to a press release, the awards went to ERNE AG Bauunternehmung and ERNE AG Holzbau from Laufenburg, as well as HUSNER AG Holzbau from Frick. The employer seal is awarded to companies that receive consistently positive ratings from their employees. According to the press release, this confirms the ERNE Group’s appreciative and development-oriented corporate culture.

    Kununu assesses employers in German-speaking countries based on independent employee reviews. Satisfaction, trust and continuity within the company are evaluated using clearly defined criteria. Overall, around 5 per cent of the companies assessed qualify for the kununu employer seal.

    “This award is only possible thanks to our employees. Their open feedback, daily commitment and active solidarity are what make ERNE the employer it is,” says the ERNE Group’s announcement. “Whether in everyday work or at joint events, team events and the ERNE Fäscht, our culture of togetherness is a central part of our identity.”

    The award also confirms the Group’s commitment to balancing tradition and innovation and working together to overcome challenges with creative solutions.

  • Renovating bridges with “smart” steel

    Renovating bridges with “smart” steel

    Many reinforced concrete bridges were designed for traffic loads and vehicle weights that are outdated from today’s perspective. At the same time, chlorides, water and frost have been causing problems for the structures for decades. Traditional refurbishments reach their limits where components are already severely cracked or permanently deformed.

    This is where the new Empa system comes in. It combines a proven method, the additional layer of ultra-high-strength, fibre-reinforced concrete, with an active reinforcing element that specifically builds up internal prestressing forces. The aim is not only to increase load-bearing capacity, but also to literally rebuild damaged bridge slabs.

    UHPFRC meets shape memory steel
    Bridges are already being retrofitted with a thin layer of ultra-high performance fibre-reinforced concrete, which is applied directly to the deck slab. The high-performance concrete is very dense, resists water and de-icing salts and can be easily reinforced. A robust “protective armour” with structural added value.

    The Empa team led by Angela Sequeira Lemos and Christoph Czaderski is now replacing the conventional steel reinforcement in this layer with bars made of iron-based shape memory steel. After installation, the bars are heated to around 200 degrees Celsius and attempt to contract, but are prevented from doing so by the concrete. The result is an internal prestress that closes cracks, reduces deformations and permanently puts the slab in a more favourable state of tension.

    Cracks close visibly
    In a first step, the team investigated the bonding effect between UHPFRC and shape memory steel. How well does the bond remain after heating? How reliably can forces be transferred? This was followed by large-scale tests with five concrete slabs, each five metres long, which simulated self-supporting bridge decks.

    One slab remained unreinforced, the others were given a UHPFRC layer, either with conventional reinforcement or with Fe-SMA bars. In order to simulate realistic conditions, the slabs were initially loaded until cracking occurred and only then reinforced. After heating the Fe-SMA bars, existing cracks visibly closed and sagging areas lifted up again. Significant improvements in deformation were already evident during this activation phase.

    Stiffer, stronger, longer-lasting
    The tests were accompanied by a dense measurement concept. Digital cameras observed the crack patterns, while fibre-optic sensors inside the panels recorded strains along the rods. Similar to fibre optic cables in telecommunications, except that here the backscattered light is used to measure deformation.

    Both the conventional reinforcement with UHPFRC and the new system with shape memory steel were able to at least double the load-bearing capacity compared to the unreinforced plate. However, under everyday loads, such as normal road traffic, the Fe-SMA variant proved to have a clear advantage. The panel became stiffer, permanent deformations occurred later or disappeared completely and existing cracks could be closed. The system thus acts like a “reactivation” of the existing load-bearing structure.

    Fields of application and next steps
    Both the ultra-high-strength fibre-reinforced concrete and the shape memory steel are still relatively expensive. The system is therefore most economically attractive where other reinforcement methods are no longer sufficient. For example, in heavily deformed, already damaged bridges or, in particular, sensitive structures with limited intervention space.

    The use of the system is not limited to bridges. Applications in building construction are also conceivable, for example in cantilevered balconies, flat roofs or sensitive components where compact reinforcement solutions and a very dense surface are required. The Innosuisse-funded project was developed in collaboration with OST, the Empa spin-off re-fer and cemsuisse. Following the successful trials, the team is now looking for a suitable bridge for the first pilot application. If this step is successful, the “smart” reinforced concrete could develop into an important tool for dealing with the ageing Swiss bridge infrastructure.

  • Gaudí’s hidden chalet in the Pyrenees

    Gaudí’s hidden chalet in the Pyrenees

    Neither original plans nor an official signature by Gaudí exist for the Catllaràs chalet. For decades, the attribution was based primarily on formal similarities to known works. The investigation commissioned in 2023 by the Gaudí Chair of the Polytechnic University of Catalonia therefore opted for a different strategy: geometric and constructive analyses instead of archival finds at the last moment.

    Under the direction of Galdric Santana, the building was measured in three dimensions, its supporting structure analysed in detail and compared with confirmed Gaudí buildings. The team also analysed historical photographs and the building history surrounding the projects for Eusebi Güell. The study concludes that the design was by Gaudí, but that the execution was the responsibility of third parties and deviated from the original concept.

    The logic of the vaults
    The core of the argument is the supporting structure. The chalet has a rectangular floor plan and a pointed vaulted roof that reaches almost to the ground. The roof and façade are structurally one unit; windows are located exclusively in the long walls and look like mansards cut into the vault. The end walls remain closed, statically consistent, formally radical.

    The decisive factor is the central longitudinal axis, which acts as a load-bearing backbone to support the storeys. Santana emphasises that this constructive logic is typical of Gaudí. The vault not only serves as a ceiling, it also supports the levels above it. This is based on working with a chain or cable model. The sagging line of a loaded chain provides the ideal pressure line of an arch. If this model is turned round, the result is a vault shape that is almost completely under pressure, a principle that Gaudí systematically utilised.

    Interventions during construction
    However, the study also shows that the load-bearing structure was altered during construction. Instead of consistently transferring the loads via the vault and the central axis, the builders inserted additional transverse walls. Longitudinal beams took over parts of the load transfer, which weakened the original radical clarity of the system.

    Santana sees this as a possible reason why Gaudí never openly claimed authorship. The “cable car”, working with the ideal chain line, was not consistently implemented in the chalet for the support of the floor slabs. The idea can be seen in the supporting structure, but its consistent application was only partially realised.

    Gaudí and Güell
    The chalet was commissioned by Eusebi Güell, Gaudí’s main patron. He ran a coal mine and the Asland cement factory in the region. The building served as accommodation for engineers and technical specialists and their families. As such, the house does not stand in the context of prestigious city palaces, but rather in the field of tension between industry, infrastructure and the harsh mountain landscape.

    The project coincided with a phase in which Gaudí was working on Park Güell and the Colònia Güell church at the same time. Against this background, it seems plausible that he did not take on the construction management of a remote chalet in the Pyrenees himself. After the mine and factory were shut down, the house was used as a country school for a time and many locals remember it from their childhood. Today it has been restored and is open to the public, and is an identity-forming building block for the municipality of La Pobla.

    Typical of the region and highly rational
    The chalet occupies a special place in Gaudí’s oeuvre. It is significantly smaller than icons such as the Sagrada Família, but it shows central motifs of his thinking. Santana speaks of a large-scale reinterpretation of the Gothic mountain huts of the Pyrenees. Gaudí takes up regional building traditions, but transforms them structurally and geometrically.

    The compact, self-contained form responds to the harsh climate and reduces construction costs. Materials are largely sourced from the surrounding area and the building blends topographically into the slope. The 45-degree distributors in the floor plan, which Gaudí also used in the Torre Bellesguard, are also characteristic. They create flowing spatial transitions and break up rigid orthogonal systems – another element of identification.

    How architectural science examines authorship
    The study of the Catllaràs chalet is not only a contribution to Gaudí research, but also a lesson in methods of architectural attribution. In contrast to painting, buildings rarely have a clear “signature”. Works are remodelled, extended or converted by employees, plans are lost or only exist in fragments. The researchers therefore combined geometric analyses, material investigations and digital 3D models with historical source work. Proportions, curvatures and structural logic were compared with verified Gaudí buildings, while photographs from the time of construction completed the picture. At the presentation, the Minister of Culture emphasised how indispensable such scientific certifications are in order to reliably determine authorship. Catllaràs’ chalet is thus transformed from a local special case into a clearly localised building block in the oeuvre of one of the most important architects of modernism.

  • Tandem modules shift solar boundaries

    Tandem modules shift solar boundaries

    Silicon modules established on the market today achieve an efficiency of around 20 to 24% and are therefore already close to the material-specific limit of 29.4%. This limit is a consequence of the so-called Shockley-Queisser limit, which describes a maximum efficiency of 33.2% under ideal conditions for solar cells with only one semiconductor layer.

    The reason for this lies in the band gap of the material: it determines which wavelengths of light can be converted into electricity. If the band gap is too large, long-wave photons are lost; if it is too small, some of the energy is lost as heat. Silicon does not exactly meet this theoretical optimum, which is why only limited increases in efficiency are possible with conventional silicon technology.

    Tandem principle
    Instead of just one semiconductor layer, several layers with different band gaps are combined. Each of these layers utilises a different part of the solar spectrum, from short to long wavelengths. This allows significantly more of the irradiated energy to be converted into electricity, effectively overcoming the classic single-layer limit.

    Theoretically, efficiency levels of over 60% are possible with tandem cells, depending on the material combination and structure. The technical challenge lies not only in the choice of materials, but also in transforming them into a stable module that works reliably under real conditions.

    In the “Vorfahrt” project, a tandem module was created which, according to Fraunhofer ISE, achieves an efficiency of 34.2%, currently the most efficient solar module in the world. It is based on a triple-stacked III-V semiconductor structure on a germanium substrate, an architecture that was originally developed for space solar cells.

    Project partner Azur Space has adapted its space cells to the terrestrial solar spectrum and scaled them up for module production. The company Temicon is contributing a nanostructure on the glass surface that minimises reflection losses and thus opens up additional efficiency percentage points.

    The second record module comes from the “Mod30plus” project. Here, the researchers combined a III-V semiconductor with the more cost-effective silicon instead of germanium, achieving a module efficiency of 31.3%. The basis is III-V/silicon tandem cells with a cell efficiency of 36.1%, which were manufactured and interconnected for the first time in a small series at the institute.

    III-V/silicon technology is moving away from pure laboratory status and towards industrially scalable processes. Both modules clearly exceed the physical limit of classic silicon modules of 29.4%. A value that was long considered almost impossible to achieve.

    Module values for practical use
    In photovoltaics, a distinction is made between cells and modules. Cells are measured under idealised laboratory conditions, while modules consist of many interconnected cells embedded in glass and frames. Inactive surfaces, conductor paths and reflections cause unavoidable losses.

    Accordingly, module efficiencies are always lower than the cell efficiencies, even in the case of Freiburg’s record-breaking technology. Module values are therefore crucial for real applications, as modules are always installed on roofs, façades or vehicles, never individual cells.

    When every square centimetre counts
    High-performance modules become exciting where space is scarce and expensive. For example, in building-integrated photovoltaics, where modules act as façade or roof elements, or on vehicles. The project partners include Audi, which emphasises the potential for vehicle applications.

    Efficiency for the mass market
    Fraunhofer ISE is also pursuing another tandem route. Perovskite silicon modules, developed jointly with Oxford PV, among others. A full-format module with a surface area of 1.68 m² already achieves 25% efficiency and has been produced on production lines that are also suitable for mass production. This technology is aimed less at absolute records than at broad market penetration with comparatively cheap materials and should be suitable for standard roofs in the future. Research groups, including in Hong Kong, are also reporting perovskite-based cells with efficiencies of up to 40%, which illustrates the dynamism in this segment.

  • AI monitoring brings new precision to infrastructure planning

    AI monitoring brings new precision to infrastructure planning

    Innovation Zurich has published the latest report from its AI Innovation Sandbox. Under the title “Sensor-based bridge monitoring – data collection and predictions for infrastructure maintenance”, Innovation Zurich, a joint initiative of the Canton of Zurich Economic Development Agency, Greater Zurich Area and Switzerland Innovation Park Zurich, investigated what data-based monitoring can achieve in terms of risk assessment and modernisation strategies for infrastructure structures. Data-based monitoring approaches are not yet an integral part of established standard-based condition assessment, which is usually extremely conservative, according to the report.

    In a pilot project, Swiss South-Eastern Railwayfrom St. Gallen and irmos technologies AG, based in Technopark Zurich, examined the Reidholz Bridge on the Wädenswil-Einsiedeln line as an example. It was built in 1910 and rebuilt in 1953. The railway company wanted to clarify whether extending its use from ten to 20 years would be technically possible and economically viable. It also examined whether the methodology could be transferred to comparable bridges in its portfolio.

    Using easy-to-install sensors from irmos technologies, which are specially tailored to the requirements of bridge monitoring, the research partners collected data from real-world operations during a test phase lasting several months. Cameras were also used to document train types, speeds and compositions and to validate the modelled traffic loads.

    The results show that even short measurement periods enable robust statements to be made about fatigue and stiffness, facilitating the trade-off between extending the service life and replacing the structure. This is because “based on sensor data, the system supports infrastructure operators in identifying risks at an early stage and planning maintenance measures in a targeted manner,” summarises irmos founder and CEO Dr Panagiotis Martakis.

    The report concludes that it is crucial that data collection is not an end in itself and that data-based methods solve a specific operational problem, such as the question: How long will the bridge actually last compared to standard-based estimates? The method delivers the greatest added value when it goes beyond individual cases: monitoring entire bridge portfolios enables comparisons, prioritisation and long-term investment strategies. To achieve this, infrastructure operators need to build up their expertise.

  • Defect rights and builders’ liens – important changes

    Defect rights and builders’ liens – important changes

    Kohler Law is a new boutique law firm specialising in construction and real estate law, constitutional and administrative law, and contract law. With over 15 years of experience in law firms in Zurich and Aargau, I advise and represent private individuals, companies and public institutions. As a sole practitioner, I guarantee a direct point of contact, high availability and advice tailored to your needs. My priority is to find efficient, practical and sustainable solutions.

    Sales contract law
    For movable items that are intended to be integrated into an immovable structure (e.g. building materials), there is now a complaint period of at least 60 days for obvious and hidden defects. The limitation period for defect rights remains five years, although a reduction in the period is still permissible.

    When purchasing land with new buildings that are yet to be constructed or are no more than two years old, buyers are now entitled to a mandatory right of rectification free of charge for the first time. In addition, obvious and hidden defects can now also be reported within at least 60 days of discovery. The rights relating to defects for all types of land purchases expire five years after transfer of ownership, and this period may not be shortened.

    Contract law
    In the future, a 60-day complaint period will apply to obvious and hidden defects in immovable works. This also includes defects in movable works that have been integrated into an immovable work, or defects in works by architects/engineers that form the basis for the creation of an immovable work. Another new feature is a mandatory right to free rectification; contractual exclusions or limitations, such as maximum amounts, are invalid. The five-year limitation period cannot be shortened at the expense of the customer; it begins with the acceptance of the work.

    Building contractor’s lien
    The lien secures payment of outstanding claims for remuneration for work performed by contractors. For owners, this can limit creditworthiness or mean a risk of double payment. The new rule is that security covering the principal claim and default interest for ten years prevents the registration of the lien. This introduces a clear, practical regulation that solves previous problems with unlimited interest guarantees.

    Entry into force and transitional law
    The changes will apply from 1 January 2026. Purchase and works contracts concluded before this date will continue to be subject to the old law; claims for rectification for new buildings completed before 2026 will only exist if contractually agreed. However, mandatory limitation periods and the new security rule in the building contractor’s lien apply regardless of the contract date.

    Recommendations
    It is definitely advisable to adapt all contract templates to the new law. When selling properties that are yet to be built, the purchase and works contracts should be aligned with each other in order to avoid contradictions between the liability under the purchase contract and the works contract. This applies in particular to works contracts concluded in 2025 if the property is not sold until 2026. Particular attention should be paid to SIA Standard 118, as this – unlike the statutory provisions – contains a prior right of rectification for the contractor.

  • Operational recovery shows effect in industrial environment

    Operational recovery shows effect in industrial environment

    According to a statement, the Schindler Group achieved sales of CHF 10.947 billion in the 2025 financial year, a decline of 2.6 per cent compared to the previous year. In local currencies, however, growth of 1.3 per cent was recorded. Order intake amounted to CHF 11.313 billion (-0.9 per cent, 3.1 per cent in local currencies). Adjusted operating profit in local currencies even rose by 12.3 per cent. Schindler generated a net profit of CHF 1.073 billion, an increase of 6.2 per cent.

    “2025 marks the final year of our operational recovery,” said Schindler CEO Paolo Compagna. “Four years after facing particular challenges in 2022, I am pleased to say that we have emerged from this phase as a stronger and more resilient company.”

    For the current year, Schindler expects “revenue growth in the low to mid-single-digit percentage range in local currencies.” The EBIT margin target is 13 per cent (2025: 12.6 per cent, adjusted EBIT margin 13.3 per cent). “Our priority for 2026 is to grow in a targeted manner and maintain our focus on further improving operating margins,” says Compagna.

  • Investor joins circular building materials developer

    Investor joins circular building materials developer

    Medley Ventures from Copenhagen is participating in a pre-Series A financing round for the building materials manufacturer Oxara, based in Dietikon. Medley Ventures is the venture capital fund of the founders ofTo Good To Go, an initiative against food waste. According to a press release, the investor is convinced by the combination of technological innovation, industrial scalability and real-world applicability.

    Oxara replaces CO2-intensive cement with circular binders generated from recyclable and previously unused construction waste. The company’s products can be easily integrated into conventional construction operations, according to the press release. Oxara intends to use the fresh capital to accelerate product development, certification pathways and industrial partnerships, enabling a broader market launch in Switzerland and international markets.

    “What convinced us was the vision behind Oxara: engineering excellence, real industrial impact and credible hope for a better future in construction. By making cement redundant and turning waste into a valuable resource, they are demonstrating that innovation can change the way we build,” Mathias Christensen, co-founder and CEO of Medley Ventures, is quoted as saying in the press release. Gnanli Landrou, CEO and co-founder of Oxara, sees the financing as strong endorsement from a company that is effectively committed to sustainability.

    As part of a Series A financing round, Oxara aims to raise CHF 20 million in fresh capital by March 2026.

  • Solar diesel to make construction machinery more climate-friendly

    Solar diesel to make construction machinery more climate-friendly

    The construction company Eberhard Bau from Kloten will in future operate its machinery with solar diesel from the Zurich-based cleantech company Synhelion. The long-term purchase agreement, which has now been announced in a press release, provides for the use of renewable diesel from 2027 onwards. According to Synhelion, this will reduce net CO2 emissions by up to 100 per cent compared to fossil fuels. The sustainable fuels can be used in all existing combustion engines.

    Eberhard Bau is Synhelion’s first customer in the construction industry, which has had little leverage to defossilise construction machinery and construction sites. Until now, solar diesel has been used by companies in the aviation, shipping and road transport sectors. Construction machinery, however, is heavy, is used in undeveloped terrain and is difficult to electrify due to its high power requirements. Solar diesel provides a sustainable solution for CO2 reduction “where there was previously no viable alternative,” says Silvan Eberhard, Head of Logistics at Eberhard Unternehmungen.

    According to its own information, Synhelion has been operating the world’s first industrial plant for the production of solar fuels since 2024 with DAWN, which manufactures in Germany. The construction of the first commercial plant is in the planning stage and is scheduled to go into operation in 2027.

    In addition to Eberhard Bau AG, Swiss International Air Lines, Pilatus Aircraft, Zurich Airport, AMAG Group and the Lake Lucerne Shipping Company have signed purchase agreements for renewable fuel with Synhelion.

  • Steel profiles expand digital planning software

    Steel profiles expand digital planning software

    The steel profiles from Pestalozzi AGwill be available in LogiKal from April, according to a statement from the Dietikon-based company. The software was developed by the German company Orgadata and is used for planning window construction. According to the statement from Pestalozzi, it is also used for planning projects involving doors and façades.

    A total of more than 400 suppliers have stored their components in the software. Open interfaces allow LogiKal to be connected to machine control systems, enterprise resource planning (ERP) and computer-aided design (CAD) software. An integrated automatic error check also reduces costly calculation errors, according to Pestalozzi.

    The Dietikon-based company describes the integration of steel profiles into LogiKal as a “digital milestone”.

  • Without materials research, there would be no progress

    Without materials research, there would be no progress

    For Tanja Zimmermann, materials research is the backbone of technological progress. Around two thirds of all innovations are based directly on new or improved materials, from batteries and medical sensors to building materials. Empa’s approach, which develops materials for construction, energy and health as a national competence centre, is correspondingly broad. This ranges from basic projects in the laboratory to feasibility studies with industrial partners. These include more efficient energy storage systems, new photovoltaic technologies and two-dimensional nanomaterials such as MXene, which could make electronics and sensor technology more compact and powerful in the future.

    applications for energy, health and construction
    In the health sector, Empa is working on textile sensors that enable long-term ECGs without traditional gel electrodes and thus avoid skin irritation. Other projects focus on intelligent materials in operating theatres, such as adhesives that seal leaks in the abdominal cavity and provide early warning of leaks thanks to integrated sensors.

    In construction, the focus is on the circular economy and resource efficiency. New concretes and composite materials should achieve the same load-bearing capacity with significantly less cement and steel, thus noticeably reducing the carbon footprint of buildings. At the same time, Empa is developing highly temperature-resistant materials for drones that can fly directly into sources of fire, as well as carbon fibre-reinforced plastics, which are increasingly making bridges and large structures lighter and more durable.

    CO₂ as a raw material
    Empa is going one step further with its “Mining the Atmosphere” initiative. The aim is not only to save CO₂, but to specifically extract it from the atmosphere and utilise it as a raw material. Researchers are investigating how carbon from CO₂ can be incorporated into ceramic materials such as silicon carbide or building materials such as concrete so that buildings themselves become carbon sinks. In the long term, such approaches should help to offset some of the historical emissions and make the transition from a CO₂-emitting to a CO₂-binding society. A “project of the century” that requires enormous amounts of renewable energy and close collaboration between research and industry.

    High-tech from nature
    Zimmermann also relies on a combination of natural principles and high-tech in wood research. She sees wood as Switzerland’s only large, indigenous, renewable resource that is light, stable and can be modified in many ways. The spectrum ranges from fire-retardant mineralised wood to antimicrobial surfaces and the use of fibrillated cellulose, whose nanofibres can form transparent gels, highly porous sponges or barrier films for food packaging. Such cellulose sponges can selectively absorb oil from water or bind CO₂ from the air. As a spray coating, they extend the shelf life of fruit and vegetables without the need for plastic film. More recent projects are creating “living materials”, such as printed structures made of nanocellulose and diatoms, which are intended to monitor water quality as biological sensors.

    Long-term projects such as “CarboQuant
    With “CarboQuant”, the Werner Siemens Foundation is supporting another long-term project at Empa. A laboratory that investigates carbon nanostructures for quantum technologies. The aim is to design graphene nanoribbons and nano-graphenes so precisely that their quantum effects can be utilised for electronic components at room temperature. For example, for sensors, communication or future quantum computers. Such projects show why foundations and public sponsors are central to Empa. Many material innovations take years or even decades before they can be scaled up and utilised commercially. For Zimmermann, however, it remains clear that without this staying power and without materials research, neither the technologies that make the energy transition possible nor many of the solutions that already make our everyday lives seem more natural than they are today would exist.

  • New role for H₂ heat

    New role for H₂ heat

    In a production hall, an inconspicuous device is making heating technology history. The first catalytic hydrogen air heating system has been put into operation at a customer. The 10 kW system provides peak load heat for a production area of around 1,000 cubic metres for the pump manufacturer Flusys, using hydrogen from regional supplies. For the young company from Wiesbaden, this is more than just a field test. It is a practical test for a technology that is intended to replace fossil fuels in the heating sector in the future.

    Commercial and industrial buildings
    The company is deliberately targeting commercial and industrial buildings rather than single-family homes. This is where high heat demand, limited electrical connected load and increasing pressure to decarbonise come together directly. A purely electrical solution using large heat pumps often fails due to expensive grid connections or simply a lack of capacity. The hydrogen heating system covers the peak load, while a heat pump or another heat source takes over the base load.

    In Offenbach, the 10 kW unit works in a hybrid network with a heat pump. The heat pump supplies the production area during normal operation, while the H₂ heating system kicks in on particularly cold days or when capacity utilisation is high. This division of tasks allows the heat pump to be dimensioned smaller and reduces the required electrical connected load, a noticeable lever for investment and output prices. For locations with an existing or planned hydrogen infrastructure, the system thus becomes an economical component of the energy supply.

    The flameless hydrogen heating system
    Technologically, the company differs significantly from conventional condensing boilers or H₂ burners. The system works with a flameless, catalytic process. Hydrogen is mixed with ambient air, remains below the lower explosion limit and only reacts with the oxygen in the catalyser. Heat is generated, but no visible flame, as the process is based on controlled oxidation rather than combustion.

    The lower process temperatures mean that neither CO₂, NOx nor particulate matter are produced; the only by-product is water in the form of humidity. At the same time, flammable hydrogen concentrations are never used in the appliance, making the technology inherently safe. HYTING sees this as a kind of “plug-and-play heating” with hydrogen that utilises existing air ducts or ventilation systems and can be scaled in a modular design.

    Practical test, endurance test and approval
    The system is not the first endurance test for the young technology. A leading engineering service provider had previously accompanied a 2,500-hour endurance test that simulated around ten years of real operation. During the test, there were neither failures nor measurable wear and tear on safety-critical components. Continuous emission measurements confirmed the absence of CO₂, NOx and particulate matter emissions.

    The first customer system now marks the transition from the laboratory to industrial reality. Further systems are to follow in the course of the first quarter of 2026, also in commercial applications with existing hydrogen expertise.

    Where does the technology make sense
    Despite the attention, catalytic hydrogen heating is no substitute for gas heating or heat pumps in the broad market. Hydrogen is currently expensive, the infrastructure is limited and a comprehensive H₂ network for residential neighbourhoods is not in sight. For the foreseeable future, there is therefore no basis for economical use in single-family homes.

    The situation is different in industrial clusters, harbour regions or chemical parks, where hydrogen is already being produced or the hydrogen core network is being set up. This is where it can play to its strengths. As peak load heating in combination with heat pumps, as a supplement to industrial waste heat or as a flexible option in logistics properties with their own hydrogen production from PV surpluses. The role is thus clearly defined, not as a competitor to heat pumps, but as a building block in hybrid systems for companies that can utilise H₂ without major additional expense.

    Whether the niche becomes more will ultimately be decided outside the technology room. The price of hydrogen, the pace of grid expansion and political decisions will determine whether flameless H₂ heaters will be used more frequently in commercial buildings in the future or remain a specialised tool that is primarily used in places where hydrogen is already part of the energy mix.

  • Innovative materials in construction

    Innovative materials in construction

    Lightweight concrete in a single pour
    ICSC Beton AG presented prefabricated parts made from its own lightweight concrete based on expanded glass, which are significantly lighter than normal concrete. At the same time, they have good insulation values, frost resistance and fire protection. This material is used to produce prefabricated elements that speed up construction processes and increase quality on the construction site. One focus is on lightweight concrete elements that combine static function, integrated ballasting and simple installation of solar modules, thus enabling roof renovation and solar installation in a single step. For experts in the audience, it became clear how prefabrication, lightweight concrete and photovoltaics can be combined to create sophisticated system solutions. With less weight, fewer interventions in the roof and more energy yield per square metre.

    Climate-neutral concrete on the construction site
    KLARK demonstrated how CO₂-saving concrete is already being used in building construction today. Without additional work for the construction site and with an externally tested climate impact. The concrete is based on the addition of biochar from waste wood, which permanently binds the carbon and stores hundreds of kilograms of CO₂ per cubic metre in the structure of the concrete. Technically, it largely behaves like conventional concrete. It can be pumped or processed by crane and remains fully recyclable. The stored CO₂ is not released again during demolition. In the Speakers Corner, it became clear that this opens up the opportunity for clients and planners to make measurable contributions to net zero strategies using familiar construction methods without having to reinvent processes and roles on the construction site.

    Climate additives for plaster and co.
    KohlenKraft presented a climate-positive building material that permanently binds CO₂ in the building and at the same time offers advantages in terms of building physics. The centrepiece is a climate additive based on biochar, which can be mixed into mineral building materials such as plasters and coatings, turning building components into long-term carbon stores. In addition to CO₂ storage, the systems aim to improve the indoor climate and regulate humidity. This is an argument that has met with great interest, particularly in refurbishments and high-quality interior fittings. The message to manufacturers, planners and construction companies is that climate effects can be integrated directly into existing products without having to fundamentally change processing and detailed planning.thinking in concrete, building with wood
    In the Speakers Corner, the TS3 technology used real projects to demonstrate how familiar design logic and a new timber construction technique come together. An important step in turning large-volume timber buildings from a pioneering project into an established option. Today, large-scale, biaxial load-bearing timber ceilings with column grids of up to 8 x 8 metres can be realised with a special end-face bonding of cross-laminated timber. Load-bearing structures that were long reserved for reinforced concrete. The panels are rigidly joined on site by grouting the joints with cast resin, resulting in beam-free, point-supported flat timber ceilings that can be treated like flat concrete ceilings in the design. For architects and engineers, this opens up great freedom in terms of floor plans and subsequent conversions, as non-load-bearing walls can be moved flexibly, while weight, construction time and carbon footprint are significantly reduced compared to concrete ceilings.

  • New plants strengthen supply chains in growth markets

    New plants strengthen supply chains in growth markets

    Sika is manufacturing its products for the construction industry at five additional plants. According to its announcement, the specialty chemicals company, headquartered in Baar, sees this as an important step towards increasing production capacity and further strengthening its global supply chain in key growth markets.

    Sika has opened a new plant for concrete admixtures in Haines City, Florida. According to the information provided, the factory has the highest level of automation of all Sika admixture sites in the United States.

    In Puerto Tirol in the Argentine region of Chaco, Sika has inaugurated its eighth production facility in the South American country. After “several challenging years,” the local construction market has returned to a growth path, opening up new opportunities for Sika.

    In the Colombian city of Cali, a new factory produces mortar, tile adhesive, interior wall and acrylic coatings, and concrete admixtures. Production there will also be exported. Sika will also gain a foothold in the construction market in Bangladesh with a site in Narayanganj, benefiting from an estimated annual growth rate of over 7 per cent until 2029.

    In the Tanzanian city of Mwanza, Sika is banking on its location in an important and densely populated mining area. Accordingly, Sika produces special mortars for mining and construction, mortars, concrete admixtures and grinding aids for cement plants there. Sika serves local demand with the plant and exports to Burundi, Rwanda and the Congo.

  • Growth strategy in the building technology market continues

    Growth strategy in the building technology market continues

    The Burkhalter Group, a full-service provider of cross-trade building technology, is acquiring Enplan AG, which specialises in the planning of heating and ventilation systems and efficient energy concepts. The company has been operating in the regional market since 1984, employs five people and generates annual sales of around CHF 0.6 million.

    Enplan AG will be merged with Längle & Staub GmbH in St. Gallen, which belongs to the Burkhalter Group, and will continue to operate at its current location as Enplan, a branch of Längle & Staub GmbH. All employees will be retained.

    Secondly, the Burkhalter Group is acquiring Elektro Gasser AG, which has been active in the electrical and telecommunications (ICT) sectors since 1991. The company employs seven people and generates annual sales of around CHF 2 million. Elektro Gasser AG will be gradually integrated into TZ Stromag, which belongs to the Group. At the same time, a branch of TZ Stromag will be established at the Lalden site under the name Gasser Elektro ICT, while Elektro Gasser AG will continue to operate as an independent company until further notice.

    With these acquisitions, the Burkhalter Group is continuing its growth strategy. It provides services in the fields of heating, cooling, ventilation, air conditioning, sanitation and electrical engineering and is headquartered in Zurich.

  • Digital marketplace promotes circular economy in construction

    Digital marketplace promotes circular economy in construction

    Zirkular GmbH, based in Basel, has launched its new platform , rematerial. According to a press release, the new online DIY store will offer high-quality, reusable building components. For example, it will offer LED lights that have been reconditioned by specialist companies and now come with a guarantee. Components can also be reserved for a month or stored temporarily for up to 24 months for just-in-time deliveries. The building components collected from demolition sites are stored in a systematic manner.

    The rematerial platform can be used in conjunction with thePlanularplanning tool, which was also developed by Zirkular. In this module, architects, planners and builders can select the components required for their respective projects from a database. The path of the building material can be traced through the steps of source object, component, warehouse and target object.

    With both modules, Zirkular GmbH supports sustainable construction through circular economy, as demonstrated, for example, in construction projects such as the Lysbüchel Süd neighbourhood in Basel.

  • Swiss companies start the year on a more optimistic note

    Swiss companies start the year on a more optimistic note

    The KOF Business Situation Indicator rose for the second month in a row in January, signalling a much more favourable starting position than a year ago. The business situation in the manufacturing industry in particular has brightened considerably, indicating a revival in demand and capacity utilisation.

    financial and insurance services, wholesale, catering and construction are also reporting rising business situation indicators, while the retail trade is at least slightly improving. The situation in other services remains largely stable, with only the project planning sector reporting a slight slowdown. Overall, this shows a broad-based improvement across the Swiss economy.

    industry as an anchor of sentiment
    Looking ahead to the next six months, optimism prevails in many sectors. The manufacturing industry in particular is anticipating a further improvement in business activity, confirming its role as an anchor of sentiment at the start of the year.

    expectations have also brightened in the retail trade, construction, financial and insurance services and project planning sectors. By contrast, the hospitality, wholesale and other services sectors are somewhat more cautious about the coming months, although the majority of them remain moderately positive.

    more recruitment
    Many companies are planning to take on additional staff. This is particularly evident in the hospitality industry, which is looking to expand its workforce but is finding it increasingly difficult to find suitable employees.

    the construction industry and the project planning sector are the most likely to report a shortage of skilled labour, which brings existing capacity bottlenecks into sharper focus. For managers and HR managers, this means that competition for qualified labour is continuing to increase in several key sectors.

    moderate momentum without new signs of inflation
    Despite the economic upturn, wage expectations remain stable. As in the October survey, companies expect gross wages to rise by 1.3% on average over the next twelve months, with above-average increases in the hospitality industry, the project planning sector and the construction industry.

    companies are also not expecting a turnaround in consumer prices. The expected inflation rate now stands at 0.9%, practically the same level as in the October survey (1.0%). The picture for monetary and wage policy is therefore one of moderate, well-anchored price and wage developments.

    broad base in the real economy
    The survey is based on around 4,500 companies from the manufacturing, construction and central services sectors, which corresponds to a response rate of around 56%.

    the KOF Business Situation Indicator thus provides a robust picture of the mood among managers. The Swiss private sector is starting 2026 with a broad base, cautious confidence and no discernible inflationary momentum, while at the same time increasing pressure on the labour market in key construction and service sectors.

  • Group of 15: Joint plea for a united real estate industry

    Group of 15: Joint plea for a united real estate industry

    The Swiss real estate sector is viewed with suspicion in some places – especially when it comes to the housing market. Is there enough living space in central locations? Why are rents in metropolitan regions rising sharply and constantly? What influence do municipalities, cantons and the federal government have on the activities of the institutional real estate industry? And what voice does the sector speak with throughout the country?

    The professional, institutional and commercial real estate industry is undoubtedly under observation. It is undoubtedly caught between growing regulation, social change and, in many places, calls for innovation, renewal and fairness. The minds and planners of the 25th symposium of the Group of 15, the think tank of the Swiss real estate industry founded in 2001, posed the questions to be answered in the run-up to the event: What does sustainability mean in a market that is becoming increasingly controversial? How can economic incentives be combined with social responsibility and sustainable urban development? And: How much state intervention is necessary – or too much?

    “Curbing regulatory madness”
    For Basel-born Prof. Dr. Christoph A. Schaltegger, one thing is clear: the state’s influence on the construction and real estate industry is enormous – and needs to be curbed. The professor of political economy, director and founder of the Institute for Swiss Economic Policy (IWP) at the University of Lucerne and former member of the executive board of economiesuisse criticized Bern and its authorities. He said that subsidyitis and patronage politics were rampant there in their purest form. “The federal government is twice as big as the state quota implies,” he told the 300 or so guests at the symposium in Zurich’s Kunsthaus.

    The Swiss state is growing more than twice as fast as the productivity of the economy and is now accumulating “implicit debts of over 300 percent of economic output”, Schaltegger continued. His call: the “Sturzenegger approach”, a thorough cleaning of public finances à la Argentina. At the same time, he argued for a significant reduction in federal regulation. He referred to the sharp increase in the number of ordinances and decrees since the 1970s. Of course, many of these federal decisions also affect the local construction and real estate sector.

    Artificial intelligence as a remedy?
    Prof. Dr. Christian Kraft, Head of the Real Estate Competence Centre at Lucerne University of Applied Sciences and Arts, then turned his attention to the topic of structural (dis)order and the question of whether artificial intelligence could possibly promote investment security in the “chaos of Swiss-German building laws”. His answer: a clear yes and no. The current uncertainty, which is partly location-specific, is primarily due to longer approval periods for real estate projects at BZO level. Between 2011 and 2024, for example, the average approval period increased from less than 100 days to almost 200 days on average. In addition, there has recently (since 2020) been a sharp increase of 20 to 30 percent in the planning and construction costs of apartment buildings, according to Kraft.

    Successful neighborhood mix and fatal objections
    Dr. Sibylle Wälty, lecturer at ETH Zurich and founder of Resilientsy, then showed what added value the concept of “10-minute neighborhoods” can create in land use planning. Her research and consulting focus is on a balanced mix of residential and working populations as well as other important factors for liveable urban districts. Dr. Wolfgang Müller, Partner & Head Real Estate at MLL Legal Ltd, then shed light on the “room for contradiction”. He explained where current case law offers opponents and “project obstructors” a hand and what conclusions politicians and the real estate industry could and should draw from this.

    Decency and consideration in residential construction
    After the coffee break, Paolo Di Stefano’s symposium presentation entitled “More freedom and personal responsibility” dealt impressively with how real estate investors can move “from problems to prospects” and make residential real estate “fit for the future”. The experienced Head of Real Estate Switzerland at Swiss Life Asset Managers (with around 37,000 residential units in its portfolio throughout Switzerland) showed, among other things, a successful example of portfolio renovation without vacancy notices at the Schmiede in Zurich-Wiedikon. He also presented the Au-Park in Wädenswil, an almost completed major new construction project in which, in addition to around 200 rental apartments, many condominium units are being built by Swiss Life Asset Managers.

    At the symposium, he made a plea and at the same time urgently appealed to the representatives of the real estate industry to speak with one voice to both politicians and the general public. He also pointed out self-critically that the current representation of the farming community in the Swiss National Council and Council of States, for example, is far more important and influential than that of the construction and real estate industry. Di Stefano warned that speculative building investors and long-term institutional investors were sometimes lumped together in the “political power play”. It is important to work together to counter this with arguments and show that “decent building also means consideration”.

    “Simply make good and convincing projects”
    The major Group of 15 event at the Zurich Kunsthaus concluded with a slightly peppery future talk by conference host Rainer Maria Salzgeber with National Councillor Beat Walti (FDP) and Green Liberal Councillor Esther Keller (Canton of Basel-Stadt). They agreed that regulations in the construction sector should not continue to grow wildly and that, above all, discretionary leeway should be made possible for real estate projects. Both warned against an “unholy political alliance between left and right”, which could have counterproductive consequences for the real estate industry.

    Beat Walti, who has been President of the VIS Swiss Real Estate Association since 2023, which represents the interests of institutional investors such as pension funds, insurers and private real estate companies in federal Berne, called on the real estate industry, which he warned at the beginning with a “yellow card”: “Show what you are building and doing in order to create trust – among politicians and the general public”. Esther Keller, Head of Basel’s Department of Construction and Transport, agreed and summed up her demand succinctly in her closing statement: “Just do good and convincing projects”.

  • Building a house from plastic waste

    Building a house from plastic waste

    Today’s PET bottle could be part of a floor beam tomorrow, as a load-bearing element. A research team at the Massachusetts Institute of Technology is investigating how recycled plastic can be shaped into load-bearing components using large-format 3D printing. The focus is on a beam system that has been specially developed and tested for use in residential construction.

    Plastic trusses instead of wood
    The new beams look familiar at first glance, as they are based on the geometry of classic wooden trusses. A frame with diagonal struts absorbs and distributes forces, a construction method that has been tried and tested for decades. What is new is the material and production. A composite of recycled PET and glass fibres is used for printing, which provides rigidity and stabilizes the pressure behaviour. Each beam measures around 2.4 m long, around 30 cm high and a good 2.5 cm wide, weighing only around 6 kg and therefore significantly less than a comparable wooden beam. The production time is short, less than 13 minutes per component is sufficient for printing.

    Load test under practical conditions
    In order to test its suitability for everyday use, the team assembled four beams in parallel and screwed them together with a wood-based panel to form a floor frame measuring approximately 1.2 by 2.4 m, a common grid dimension in the USA. The surface was then gradually loaded with sandbags and concrete weights, while the deflection was continuously measured. Up to a load of around 140 kg, the deformation remained well below the limits permitted by US building regulations. Only when the total load exceeded 1,800 kg did the construction fail, the beams buckled and broke. This indicates that the rigidity is generally sufficient to meet the relevant requirements in residential construction.

    Lightweight, modular, quick to assemble
    In addition to the load-bearing capacity, the low weight is a key advantage of the system. The plastic beams can be transported using a pickup truck, which simplifies logistics and handling on the construction site. Assembly follows the principle of classic timber frames. The elements are screwed together on site and joined to form a load-bearing skeleton. In the long term, the concept is aimed at modular house frames in which the floor, walls and roof consist of standardized, printed components. This approach is particularly interesting for regions where wood is scarce or expensive.

    Plastic waste as a raw material for a billion houses
    The project was triggered by the enormous global demand for housing. AJ Perez from the MIT School of Engineering points out that around one billion new houses will be needed by 2050. A demand that can hardly be met with wood alone without clearing gigantic areas of forest. Instead, existing waste streams should be used. Disposable plastics such as bottles or food packaging will be given a second life as a construction product. The aim is to create components that are lighter, more durable and more sustainable than conventional alternatives.

    Costs, standards, long-term behavior
    Despite the promising results, the technology is still in its infancy. The actual costs on an industrial scale, the adaptation of standards and approval processes and the long-term behavior of the components under weathering, UV radiation and changing loads are still unclear. Nevertheless, the project opens up exciting prospects for planning, development and the construction industry. 3D-printed supporting structures made from recycled plastic could change the material mix in building construction. Provided that cost-effectiveness and durability can be convincingly demonstrated.

  • Long-standing industrial partnership to continue

    Long-standing industrial partnership to continue

    Jansen, a steel system supplier based in the St. Gallen Lake Constance area, has agreed to extend its partnership with Schüco International KG, based in Bielefeld, Germany, which has been in place since 1978. According to a press release, Jansen will continue to be the exclusive distributor of Schüco aluminium systems in Switzerland and Liechtenstein. The German company will continue to be the exclusive distributor of Jansen steel systems in Germany, Luxembourg, the United Kingdom, Ireland, Scandinavia, Finland, Greece and the Baltic States.

    Since 1 January 2026, Schüco International S.C.S, based in Le Perray-en-Yvelines, has been distributing the steel systems of RP Technik Profilsysteme GmbH, which was taken over by Jansen, in France and the French overseas territories. The steel systems are used for windows, doors, fire protection and façade constructions, according to the press release.

    “We have shared these values with Jansen, a family-owned company like Schüco, for over 45 years. I am delighted that we will continue and further expand our trusting partnership in the future,” said Andreas Engelhardt, personally liable partner at Schüco International KG, in the press release. Christoph Jansen, Managing Director and Member of the Board of Directors of Jansen AG, considers the long-standing stable partnership to be extremely important, especially in “times of great change and uncertainty”: “Our partnership is based on shared goals and values, always with a focus on our mutual customers.”