House Charlie. Photo: Michael Dorn

Project: House Charlie

House Charlie is an office building in Växjö, made from timber. A monitoring system has been included during construction and running since summer 2018. Dynamic and moisture properties are continuously measured since then.

Project information

Project manager
Thomas K Bader
Other project members
Anders Olsson, Reza Hosseinpourpia, Michael Schweigler, Michael Dorn, Jimmy Johansson, Ambrose Dodoo, Björn Johannesson, Johan Bergh, Wit Derkowski, Carmen Amaddeo, Bishnu Chandra Poudel, Tobias Schauerte, Osama Abdeljaber, Min Hu, Eva Binder, Whokko Schirén and Anders Alrutz
Participating organizations
Linnaeus University, SAAB, VÖFAB, JSB
Växjö municipality, Linnaeus University, The Knowledge Foundation, SBUF
2016 – ongoing 
Building technology (Department of Building Technology, Faculty of Technology)
Research groups
Structural Condition Monitoring
Linnaeus Knowledge Environment
Green Sustainable Development

More about the project

House Charlie is a four-story Office building in Växjö. The building’s load-bearing structure consists of columns and beams made from glulam and floor slabs made from 7-layer CLT with a concrete topping. Horizontal stability comes from the two staircase and elevator shafts in concrete as well as steel grazings in the façade. House Charlie is hence considered a timber-concrete hybrid building.

During construction, an SHM system was included, running continuously since the summer of 2018. The system covers multiple parts: performance of the outer walls regarding humidity and temperature, moisture in the timber CLT structure, and overall structural dynamic performance. The measurement system was developed together with Saab, and House Charlie was the prototype building.

The building and the results from the measurements have been published in scientific articles, conference contributions, and thesis works. The collaboration with Vöfab, the owner and property manager, was very successful over the years. The openness towards research and the need for complementary tests or side projects is greatly appreciated. Växjö municipality has been supportive by funding parts of the research.

The project is part of the research in the Structural Health Monitorering research group within the field of building technology and is included in the Linnaeus University Knowledge Environment: Green Sustainable Development