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How Systemair Supported an Award-Winning Sustainable Timber Building in Latvia
Systemair solutions helped create a healthy indoor microclimate for the Zemgales Tehnoloģiskais Centrs (ZTC) office building in Jelgava, Latvia, which was recognised through multiple prestigious sustainability awards.
Zemgales Tehnoloģiskais Centrs (ZTC) Office, Latvia
Strong Support for Unique Project Needs
Systemair worked closely with the project team to deliver solutions tailored to the building’s specific architectural, sustainability, and indoor climate requirements.
A Holistic and Adaptable Product Portfolio
From air handling units and diffusers to VAV controls and air distribution components, Systemair’s broad portfolio enabled a fully integrated indoor climate solution for the project.
Trusted Expertise Built on Long-Term Relationships
Long-standing collaboration, proven product reliability, and confidence in Systemair’s technical expertise played a key role in the selection process.
Balancing Performance with Architectural Integration
The selected solutions delivered the technical precision required for a healthy indoor microclimate while integrating seamlessly into the building’s visionary timber design.
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The new Zemgales Tehnoloģiskais centrs (ZTC) office building was conceived as a reflection of the company’s expertise in modern timber construction, balancing functionality, sustainability, and architectural character within a single project. Located adjacent to ZTC’s existing factory in Jelgava Municipality, Latvia, the building was developed to support the company’s continued growth while serving as a practical showcase of its capabilities in designing, manufacturing, and constructing industrially produced timber-frame panel buildings for projects across Latvia and international markets.
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Sustainable Timber Construction with Architectural Character
Designed with a strong emphasis on material efficiency and environmental performance, the project creatively incorporated leftover timber materials from ZTC’s long-standing factory operations, including maple, pine, ash, oak, and reclaimed parquet boards originally produced for the restoration of the Latvian National Opera. Wooden boards of varying dimensions were treated in a uniform tone to create a harmonious façade with a rich interplay of textures, wrapping around the building’s front and sides while complementing its distinctive curved architectural form.
The office building was also developed with a focus on achieving low overall energy consumption and a healthy indoor microclimate. Wood fibre wool and cellulose wool insulation were integrated directly into the wall panels at the factory using computer-controlled equipment, while membrane-free construction technology and carefully sealed joints ensured high levels of airtightness and building performance.
The project has received national recognition for its contribution to sustainable timber construction and architectural excellence, securing 1st Place in the Sustainability in Architecture, Construction & Design Baltics 2025 awards within the Timber Building category, and 3rd Place in the Latvian Construction Annual Award 2025 for Office Buildings
Built on Long-Term Collaboration and Trust
Systemair solutions were selected based on long-term relationships, proven performance, and trust developed over many years of collaboration. The ZTC owner had previously installed the same unit in his private residence and was highly satisfied with its performance. The company’s experience working across Scandinavian markets, where Systemair residential units are widely used, further reinforced the decision.
The project consultant, Raitis Straumanis, also worked closely with the Systemair team and visited the company’s factory in Kalinkovo to observe the manufacturing and testing processes behind the air distribution solutions used in the project. In addition, the installation company had been a long-standing Systemair partner for many years.
For the ZTC office project, the primary goal was to harmonize high-performance engineering with the unique aesthetics of a sustainable wooden structure. I chose Systemair air diffusers and VAV valves because they offered the technical precision required for a healthy indoor microclimate while integrating seamlessly into the building's architectural design.
The selection process was straightforward; Systemair’s comprehensive product range made it easy to find components that met our specific airflow requirements without compromising the interior visual quality. The reliability of these products was key in achieving the efficiency levels expected for this award-winning project
HVAC Designer
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Delivering a Healthy Indoor Microclimate
Alongside the Topvex air handling and DX units, CAP diffusers were also installed throughout the project to support a healthy indoor microclimate while complementing the building’s architectural vision. The ventilation concept was designed not only to ensure occupant comfort and indoor air quality, but also to align with the project’s broader sustainability and energy-efficiency ambitions.
The solution additionally incorporated VAV air volume control systems, THOR and NOVA air distribution components, TFF and EFF ventilation terminals, OPTIMA valves, iris dampers, duct cooling systems, and integrated CO₂ and temperature controls to ensure efficient airflow management and balanced air distribution throughout the office environment. Together, the systems help maintain stable indoor conditions, optimise energy performance, and support the building’s overall airtight and low-energy construction approach.
Beyond technical performance, the selected air distribution solutions also played an important architectural role. The products were integrated carefully into the interior concept to preserve the visual quality of the timber structure while delivering the precision and reliability required for an award-winning sustainable building project.
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A Building that Reflects ZTC’s Vision
Beyond its technical and sustainability achievements, the new office building was designed to embody ZTC’s philosophy of craftsmanship, innovation, and long-term thinking in timber construction. It serves as a practical demonstration of the company’s capabilities, showcasing how sustainable construction, architectural ambition, and healthy indoor environments can successfully coexist within a modern timber structure.
ZTC has been engaged in the construction of wooden buildings for several decades, and now we have taken a significant step forward for ourselves – we have built a new office building right next to our factory. This project was special for us. It is important – it not only proves our experience and competence, but also allows us to demonstrate the quality of our products and the possibilities of wooden construction in practice. During the project, we used innovative technologies and worked closely with reliable suppliers, to whom we are grateful for their contribution. The building provides a good microclimate, sufficient natural lighting and plenty of space for all planned functions. The location of the office next to the factory allows the factory to more effectively address various issues related to production and design. Once again, I would like to express my gratitude to all the named and unnamed partners for making ZTC feel good about the construction of the office building!
Owner, Zemgales Tehnoloģiskais Centrs
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NOVA-R
Rectangular non-transparent aluminium grille suitable for hotels, offices and restaurants
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OPTIMA-R-LPC_BM
Air pressure controller for rooms
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THOR
Plenum Box
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TFF
Circular supply diffuser for easy ceiling installation
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CAP-F
T-bar ceiling diffuser with multiple individually adjustable nozzles.