Revenue from products supporting net zero buildings:
Target and performance

The European Union Energy Performance of Buildings Directive (EPBD) sets out the energy performance requirements for buildings within the European Union. This regulation will drive a significant increase in energy-efficient buildings and reduce the share of buildings that currently contribute to 40% of the global CO₂ emissions.

In 2024, wienerberger reinforced its commitment to sustainability by supporting energy-efficient building solutions. We continue to extend the share of the products that contribute to net zero buildings, such as systems for roofs, outer walls including façades, heating, cooling, and solar power generation.

Our external wall systems, particularly monolithic masonry, and insulation-filled clay blocks, have been instrumental in supporting net-zero building ambitions.

Key advantages include:

• Durability & Energy Efficiency – Clay blocks provide outstanding thermal insulation, reducing energy consumption and ensuring long-lasting performance
• Climate Resilience & Thermal Mass – Their high thermal mass helps mitigate overheating in summer, enhancing climate resilience
• Scalability & Innovation – As the only monolithic wall solution suitable for load-bearing structures up to eight stories, our insulation-filled blocks enable new possibilities for sustainable urban development
• Affordability & Low Maintenance – Cost-effective and petroleum-free, clay blocks offer an accessible solution for energy-efficient construction with minimal upkeep

• France, Germany, Italy, Spain, and the US: Enhanced roof and PV systems portfolio
  In 2024, wienerberger took a historic step with its largest acquisition—Terreal—marking a significant step toward sustainable, high-quality, affordable housing. This strategic move strengthens efforts to renovate Europe’s aging building stock, where uninsulated roofs account for nearly 30% of heat loss. By integrating advanced roof solutions and solar energy production, wienerberger enhances energy efficiency and accelerates the shift to renewables.
  
  In addition to our recent acquisition, we remain committed to enhancing our products and developing new solutions to contribute to the energy efficiency of the building, particularly in the traditional wall segment.
  
  
• Project Wildgarten, Austria
  A flagship example of the successful application of monolithic masonry is the Wildgarten residential development in Vienna, where two eight-story buildings are being constructed using wienerberger clay blocks. This global first demonstrates that monolithic brick structures with integrated insulation can be used for high-rise residential buildings, eliminating the need for traditional external thermal insulation systems.
  
  Beyond Austria, wienerberger has increased the share of monolithic masonry in the Czech Republic, Italy, and Slovakia, demonstrating the growing market acceptance of this technology.

While wienerberger has achieved significant progress, challenges remain:

Market adoption – some regions are slow to transition from traditional methods to monolithic masonry

Economic conditions – uncertainty in some markets has slowed investment in energy-efficient solutions

Lack of skilled labor – The shortage of skilled masons remains a key challenge. wienerberger developed WLTR. This automated masonry robot accelerates construction and reduces the physical workload to address this ​challenge.

Despite these challenges, ongoing collaboration with architects, developers, and regulators has reinforced the viability of monolithic masonry for energy-efficient, multi-story buildings. In addition, low-temperature cooling and heating systems have become the standard in low-energy buildings.

With the growing demand for building-integrated solar panels, there is a strong need for solutions that combine efficiency, safety, and aesthetics. wienerberger’s approach provides a cost-effective and visually seamless way to integrate solar technology into roofs, meeting market demand while supporting the transition to sustainable energy.

wienerberger remains committed to:

• Extending the share of products supporting net zero buildings responding to the market and legislation demands
• Rolling out innovative products, further strengthening our sustainable construction portfolio

By leveraging innovation, research, and strategic partnerships, wienerberger is setting new benchmarks for climate-resilient, energy-efficient construction, making net zero buildings a reality in an affordable way.

^{*These are products that:}

• ^{Meet the substantial contribution to climate change mitigation criteria (U-value threshold), part of the technical screening criteria, under the EU Taxonomy Regulation 2020/852 economic activity 3.5. Manufacture of energy efficiency equipment for buildings; or}
• ^{Contribute to lower energy consumption within the buildings, even if not yet covered by the Taxonomy Regulation (low-temperature cooling and heating systems); or}
• ^{Contribute to energy consumption through renewable energy in the buildings (photovoltaic (PV)); or}
• ^{Contribute to a lower embodied energy footprint of the building (products with extremely low CO₂ emissions: products with almost zero emissions in the production phase (at least 80% lower CO₂ emissions in production compared to 2020).}