Facade elements of the Risenga School, Asker Norway
Risenga School Project – Hybrid Timber Façade, CO₂-Free Construction
Building Type: Hybrid structure with a timber-frame façade system
Gross Floor Area: 6,700 m²
Construction Period: Q1 2019 – Q4 2020
Client: Askeri Municipality
Main Contractor: NCC
Architect: NSW Arhitektuur
Contract Value: NOK 163 million (excl. VAT)
Energy Label: A
Sales Manager: Tõnis Vaiksaar
Design: Alar Oinus, Tarmo Oks
Project Manager: Lauri Susi
Construction Manager: Marko Purret
Timbeco’s Contribution
Timbeco was responsible for the design, production, and installation of the prefabricated timber façade elements for the new Risenga School. These multi-storey façade modules were delivered with integrated openings, insulation, wind barriers, and exterior cladding, enabling faster and higher-quality construction on-site.
This project is an excellent example of combining steel and concrete load-bearing structures with factory-produced timber elements, demonstrating the potential of hybrid construction for sustainable and efficient building projects.
CO₂-Free Construction
Risenga High School is the first project in NCC’s history to be built on a fully CO₂-free construction site — a milestone in sustainable building.
Key environmental initiatives included:
- Concrete Recycling: Up to 100% of concrete waste from the demolished school was recycled.
- Sustainable Façade: Timber façade elements were made using FSC- or PEFC-certified wood, significantly reducing the carbon footprint.
- Emission-Free Energy: Only CO₂-free energy sources were used on-site.
- Green Equipment: All construction machinery ran on electricity or biodiesel, including heating and dehumidification systems powered by renewable energy.
- Efficient Building Design: The school’s heating system uses geothermal energy, ensuring it meets stringent Energy Class A requirements.
