Multivie
Reuse of metal structures for a sustainable future
The Multivie project focuses on studying the reuse potential of existing steel industrial halls located in the canton of Fribourg. It compare the reuse options with equivalent new-build solutions, from structural, economic, and environmental perspectives.
See the project here: https://frisource.ch/2025/09/01/recherche-et-developpement/
A life-cycle assessment focused on GWP complements the evaluation. The study perimeter covers the steel load-bearing structure. The three halls analysed are presented below through posters illustrating part of the results obtained.
The study also aimed to identify the main contributors to emissions and to evaluate the sensitivity of results to different key parameters, including transport distances.
Key insights:
The Villars hall stands out as the most favorable case thanks to:
its minimal need for new material,
limited surface treatment,
and very low refurbishment impact.
Polynorm’s refurbishment is more impactful due to extensive repainting needs. Pilettes shows the highest repainting impact because of full-surface treatment.
Across all halls, steel production remains the dominant source of emissions, and transport becomes decisive only for extremely long distances.
Key information
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