Center for Light and Environmentally-Friendly Structures ZELUBA®


In the ”Center for Light and Environmentally-Friendly Structures ZELUBA®”, we develop solutions for the construction industry. We support industrial partners from the wood-based materials and prefabricated housing industry as well as companies from the manual trade sector in the development of new systems. One of our great competences is the linking of simulation procedures with physical and mechanicalconstructive methods of investigation. The spectrum ranges thereby from the development of innovative materials through the complex questions of individual details up to complete wall systems. Another research focus is the development of reactive fire protection systems to improve the behavior of building materials and the fire resistance of components, installations and structures.

Further tasks within the center include examinations concerning the issuing of general building authority approvals for timber constructions as well as the monitoring of manufacturers of wooden houses.


Research Focuses


Hybrid material systems

We develop hybrid material systems for building construction. These offer numerous advantages from both an ecological and an economic point of view. 

Load-bearing behaviour

We investigate the static-constructive properties of wood-based structures and materials through trials and simulations. Furthermore, we specialize in the consideration of the complex and holistic relationships. 


Building physics

Building physics is of essential importance in wooden construction, as only buildings which have been structurally correctly constructed can remain durable and hold their value over centuries. 


Fire protection

We develop new solutions for improving the fire protection of wood and wood-based materials focussing on intumescent fire-protection coatings, glowing combustion-resistant wood-fiber insulation materials, flame-retardant wood-plastic composite materials.


Numerical simulation

With numerical simulation we can visualize invisible effects, explain test results, create prognoses, validate hypotheses. We have our own measurement technology for verification of simulations as well as for examination of construction parts.

Cooperation with the TU Braunschweig


Innovative building for joint research

The Fraunhofer WKI's ”Center for Light and Environmentally-Friendly Structures ZELUBA®” is located on the campus of the Technische Universität Braunschweig and is closely connected to the “Institute of Building Materials, Concrete Construction and Fire Safety“ of the university. In line with the research at the ZELUBA®, the building consists of a hybrid construction with a high proportion of renewable raw materials.


Junior research group

Young scientists from the Fraunhofer WKI and the TU Braunschweig are working together to develop solutions for sustainable buildings.



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