Mini CO2 Multi-Storey House in Wood

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

Located in Kanalbyen, Fredericia, the experimental wooden building will be built along other Realdania By & Byg experimental houses to showcase new ways of making constructions more sustainable and efficient.

Program: Housing, Experimental building
Size: +600 m2
Location: Kanalbyen, Fredericia, DK
Client: Realdania By & Byg
Year: 2021 -
Collaborators: ONV, Artelia, Bluhmer Lehmann Group, Egil Rasmussen
Role: Architectural advisor
Status: Ongoing
Team JAJA: Kathrin Gimmel, Jakob Christensen, Jan Tanaka, Kasper Dige Larsen, Martin Østrup-Møller, Christian Bøggild Schuster, Birk Christiansen

Experimental building

The project brings knowledge on how to build a multi-storey house in wood for residential purposes with as little CO2 footprint as possible. At the same time, the project shows how the CO2 footprint can be reduced by developing new solutions that optimize wood’s various properties.

Experimental building

The project brings knowledge on how to build a multi-storey house in wood for residential purposes with as little CO2 footprint as possible. At the same time, the project shows how the CO2 footprint can be reduced by developing new solutions that optimize wood’s various properties.

Prefabrication

Combining the benefits of using a column/beam system with the use of prefabrication, our column wall elements make it possible to place a whole column row with one lift instead of four (and without adjusting various plasterboard walls afterwards). The ribbed decks developed for the project ensure, the beams are raised together with a thin CLT board and acoustic ceiling insulation with a finished plasterboard ceiling underneath. This way, it is ready for the upper floor construction and painting of the ceilings.

Prefabrication

Combining the benefits of using a column/beam system with the use of prefabrication, our column wall elements make it possible to place a whole column row with one lift instead of four (and without adjusting various plasterboard walls afterwards). The ribbed decks developed for the project ensure, the beams are raised together with a thin CLT board and acoustic ceiling insulation with a finished plasterboard ceiling underneath. This way, it is ready for the upper floor construction and painting of the ceilings.

Constructive Protection of Facade

The roof overhang and sloping facade divisions effectively divert water away from the wooden-clad facade. Not only do they provide essential protection, but they also define the floor levels and contribute to a harmonious facade layout. Additionally, within the sloping facade division, there’s an integrated horizontal fire stop for added safety measures.

Constructive Protection of Facade

The roof overhang and sloping facade divisions effectively divert water away from the wooden-clad facade. Not only do they provide essential protection, but they also define the floor levels and contribute to a harmonious facade layout. Additionally, within the sloping facade division, there’s an integrated horizontal fire stop for added safety measures.

Biobased decks provide great CO2 savings

Our ribbed deck with visible wooden beams and bio-based insulation paves the way for using deck elements with partially visible wooden beams in combination with bio-based insulation in multi-storey house constructions. 23 different combinations of biobased floor and ceiling build-ups have been tested to find the right solution for the project. This has led to a report (led by Artelia) showing that in the majority of the CLT- and ribbed deck solutions it is possible to reduce CO2 emissions up to 55-70 % in comparison to typical hollow-core slab solutions while complying with sound and fire requirements of the building regulations.

Biobased decks provide great CO2 savings

Our ribbed deck with visible wooden beams and bio-based insulation paves the way for using deck elements with partially visible wooden beams in combination with bio-based insulation in multi-storey house constructions. 23 different combinations of biobased floor and ceiling build-ups have been tested to find the right solution for the project. This has led to a report (led by Artelia) showing that in the majority of the CLT- and ribbed deck solutions it is possible to reduce CO2 emissions up to 55-70 % in comparison to typical hollow-core slab solutions while complying with sound and fire requirements of the building regulations.

Program: Housing, Experimental building
Size: +600 m2
Location: Kanalbyen, Fredericia, DK
Client: Realdania By & Byg
Year: 2021 –
Collaborators: ONV, MOE, Bluhmer Lehmann Group
Role: Architectural advisor
Status: Ongoing
Team JAJA: Kathrin Gimmel, Jakob Christensen, Jan Tanaka, Kasper Dige Larsen, Martin Østrup-Møller, Christian Bøggild Schuster

 

Site images: Helene Høyer Mikkelsen & Claus Fisker/Realdania By & Byg. More info via Realdania’s website