‘Mini CO2 House’ fire test success: Visible wooden beams are back in multi-storey housing

Together with ONVMOE and Blumer Lehmann Group, we are working on a sustainable ‘Mini CO2’ five-storey wooden experimental building in Kanalbyen, Fredericia. The Realdania project investigates on a 1:1 scale how to minimize the CO2 footprint in a building with wood as the primary material.

The project just reached a milestone as our newly developed deck – a ribbed deck with visible wooden beams and bio-based insulation – just passed an extensive fire test at The Danish Institute of Fire and Security Technology. The successful test paves the way for using deck elements with partially visible wooden beams in combination with bio-based insulation in multi-storey house constructions!

The fire resistance requirement was 60 minutes but it took around 90 minutes before the fire had burned through the plasterboard.


About the project

The overall goal of the ‘Mini CO2’ demonstration projects is to support the construction industry’s reduction of CO2 emissions. The multi-storey housing building will be made as a “mono-material house” with wood used in as many of the parts of the building as possible.

Illuminating challenges and potentials through the process., the project challenges our use of wood as a material and comes up with new, innovative solutions for the use of wood in construction. 


Taking part in the ‘Wood:UpHigh’ initiative, the fire test was among a series of tests documenting how compound bio-based constructions can be used more widely and more easily in multi-storey constructions. 

Find more info about ‘Wood:UpHigh here