It also makes it possible to optimize construction practices, supply strategies and logistical challenges – as well as encourage refurbishment and the reuse of materials. The good news is that, beyond environmental optimization, digitizing the building sector could save up to 20% on the total cost of a project, according to Boston Consulting Group. Austria and Norway are setting an example, since these two countries now require the use of BIM for all public projects. France is following suit with its ambitious “Plan BIM 2022,” which aims to make the use of digital modeling widespread among craftsmen and small businesses. In Singapore, BIM has been required for all projects of more than 5000m2 since 2015. > The Aniche factory (Saint-Gobain) achieves zero-carbon production of flat glass, a global first. ©ChristelSasso_CAPA This empowering approach must involve all stakeholders, starting well before construction, with architects and urban planners committed to imagining the post-carbon city and infrastructure of tomorrow. Buildings, in particular residential buildings, have an average lifespan of 70 to 100 years. For the professionals involved, this means imagining the city of the future a century in advance, considering the adaptability of uses and the modularity of places. It also includes looking at how buildings might be adapted and transformed over time – into offices, housing or business spaces – while anticipating their environmental impact Digital technology serves sustainable construction The use of digital technology – including one of its more powerful tools, building information modeling (BIM) – makes it possible to test different hypotheses. 23 CONSTRUCTING A SUSTAINABLE FUTURE
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