Second WiCO workshop

Key takeaways

Example cases:

  • Circular construction principles should be taken into account directly in the initial design stadium. By taking into account multiple destinations for the building in the early design phase, the lifetime of the building and the facade can be prolonged.
  • Taking into account the circular principles in a building requires a joint effort of architect, building contractor and fabricator. The ‘bouwteam’- approach is very suitable to gather knowledge in the initial design phase of the building.
  • In refurbishments, the floor height is often a limiting factor because modern technical installations require more space. Therefore, new buildings should be designed with sufficient floor height.


  • A case study about the refurbishment of an existing stick facade was shown. Circular refurbishment solutions are technically possible and result in a significant decrease of the environmental and financial impact. The study was done in the assumption that the thermal and acoustical performances do not require a significant improvement.
  • The residual value of an installed curtain wall is strongly influenced by the ease of disassembling the structure. In time, there is a point where the residual value of the re-use scenario equals the residual value recycling scenario. From that point on, it’s more interesting to recycle the facade.
  • The demands for a modern window building connection became much more demanding in the past 20 years (insulation/depth/acoustics/fire resistance…). The lifetime of a building skin is also dependent of the weight of the outer skin. Heavy outer skins will not be replaced so easily.
  • An easily dismountable building connection is needed to allow for the re-use of window and door elements. Such a connection was presented.