The life cycle assessment of temporary reusable membrane structures: Case study analysis

Membrane structures represent lightweight spatial structures composed of a primary framework combined with tensioned membranes. Their popularity has increased due to their lightweight, flexible, and durable characteristics. However, as all constructions, their production and use come with an environmental impact. This study aims to assess the life cycle assessment of membrane structures with temporary use, specially focusing on the Global Warming Potential, a wellrecognised indicator of greenhouse gas emissions. Using Life Cycle Assessment methodology, this research evaluates the environmental impact of membrane structures from raw material extraction to disposal. The investigation concentrates on temporary membrane structures installed multiple times across different locations within a 25year lifespan. Two case studies, Nomad ADD-ON rental sails and Wolke Marienfeld, are analysed. The LCA of a temporary structure involves three distinct LCAs: one for the initial installation, one for each intermediate installation, and a final assessment for the end installation. Results indicate that temporary reusable membrane structures demonstrate a significant environmental impact, primarily due to the high energy consumption during manufacturing and transportation. It is essential to consider the effects of the 'End -of -Life ' stages and the 'benefits and loads beyond the system boundaries ' stage, particularly for temporary structures. This research aims to raise awareness about the environmental impact of temporary membrane structures and offers a framework for sustainable design and construction methods. Additionally, it explores potential strategies to reduce the environmental impact including thoughtful material choices, innovative construction practices and effective End -of -Life management.