Industrialised, Integrated, Intelligent sustainable Construction - I3con

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SUSTAINABLE CONSTRUCTION HANDBOOK 2 208 Results A new business model for construction is described, based on a combination of products and services, in which – ideally – the provider owns the material building and is paid for the performance that the building provides to its users. The building is constructed from reusable components and materials that may have a lifetime which is considerably longer than the functional lifetime. The building can be adapted continuously to changing needs. Several pilot projects are planned in the Netherlands. Of these, the project for a ‘living school’ in Veenendaal is currently (November 2009) in construction phase. In 2010 the realization of a ‘living hospital’ in Den Helder and a ‘living canal and sluice complex’ are expected to start. The project in Veenendaal started as a unique experiment. But the company that built the school has now plans to form a joint venture with two consultancy firms and its main supplier that offers the integrated Product Service combination to the market. The ambition is to build a series of schools – which may all look different and unique from architectural perspective – all according to the same concept. It is expected that lifecycle costs can be reduced, while the risks for the local governments will diminish. This is contrary to the common belief that sustainable buildings cost more than traditional buildings. The concept is in particular interesting for regions that are faced with a shrinking population. Conclusions The Living Building concept seems to be a feasible and powerful business concept for the realization of sustainable buildings. An important advantage, as compared with other business models, is the extended lifetime of material components, resulting in considerable savings on embodied energy and CO2 emissions. In addition, ‘living buildings’ can always be adapted to changing user needs and changing social and environmental insights and requirements. Hence, the lifecycle value will increase. As the continuous modification of buildings will require human effort, it can be stated that, from an economical point of view, the concept shifts the application of capital investments from energy and material resources to labour. The higher labour intensity should not be seen as a factor that increases costs, because building vitalization is always done to keep the building ‘fit-for-use’. Decisions about change will always be backed up by a cost/value analysis. The pilot in Veenendaal shows that the concept is technically feasible, although certain improvements remain always possible. Thanks to the use of prefabricated, standardized components, construction time is very short. If in the future remanufactured components will be used, construction time can be even shorter. However, clients and investors, as well as their advisors, need to get used to the idea. They tend to stick to old thinking patterns, which restrain the effectiveness of the concept. More work is needed to examine the financial implications, as well as the contractual and legal implications. Important risks such as bankruptcy of a provider and changing standards for reusable components need to be addressed. Acknowledgements We thank Harry Vedder (M3V consultants) and Michiel Wijnen (Matrix Bouw) for their valuable contributions to this paper.
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Industrialised, Integrated, Intelligent sustainable Construction - I3con

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