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Wallner, T.S. (author), Magnier, L.B.M. (author), Mugge, R. (author)Refurbishment is a strategy to extend products’ lifetimes. However, refurbished products that are used intimately, such as personal care products, feel uncomfortable to use for consumers because they are perceived to be contaminated. In fifteen in-depth interviews, we explored why consumers have contamination concerns regarding a refurbished...conference paper 2022
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Konstantinou, T. (author), Dimitrijević, Branka (author)The reconsideration of the existing building stock is motivated by society’s efforts towards sustainability and resilience. The building sector has a considerable role to play in doing so. The process of refurbishment is complex, since aspects such as design decisions, existing construction, energy efficiency, and user behaviour need to be...book chapter 2018
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Sumter, Deborah (author), Bakker, C.A. (author), Balkenende, R. (author)In the transition to a circular economy companies are exploring new business models, implying a shift from selling products to offering products in circular business models, such as leasing.<br/>Product design is thought to play a crucial role in enabling this. Having a robust overview of relevant design roles and competencies is of foundational...journal article 2018
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Konstantinou, T. (author), Guerra Santin, O. (author), Azcarate Aguerre, J.F. (author), Klein, T. (author), Silvester, S. (author)The ambition to renovate the post-war building stock to an energy-neutral quality is getting a lot of attention in social housing association and other institutional owners, financial institutions and users. The Energy Agreement for Sustainable Growth indicates that 300.000 dwellings have to be renovated in the Netherlands annually. An effective...conference paper 2017
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van Bueren, Ellen (author), Bekebrede, G. (author), Wenzler, I. (author)This paper presents the serious multi-player tabletop game GO2Zero and explores how such games may contribute to overcoming barriers to local energy retrofitting. The game lets actors involved in local energy retrofitting, experience the multi-actor decision-making context. In half a day, about twenty participants play a role. Roles defined are:...conference paper 2017
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Greco, A. (author), Konstantinou, T. (author), Schipper, H.R. (author), Binnekamp, R. (author), Gerritsen, E. (author), de Graaf, R.P. (author), van den Dobbelsteen, A.A.J.F. (author)Net zero energy is already an ambitious target for several buildings, especially since the DIRECTIVE 2010/31/EU that requires increasing the number of nearly zero energy buildings. The existing commercial building stock needs to be included in order to achieve the 2020 EU environmental targets. The main barriers of zero energy refurbishment of...conference paper 2016
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Xexakis, G. (author), Van den Dobbelsteen, A.A.J.F. (author)Prêt-à-Loger, TU Delft’s entry to the Solar Decathlon Europe 2014 (SDE2014), demonstrated the conversion of a common terraced house to energy neutrality, whilst adding value to its living quality. The house was retrofitted according to principles of smart & bioclimatic design, using local circumstances intelligently in the sustainable redesign....conference paper 2015
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Konstantinou, T. (author), Klein, T. (author), Guerra Santin, O. (author), Boess, S.U. (author), Silvester, S. (author)Although refurbishment is a necessary step to reach the ambitious energy and decarbonisation targets for 2020 and 2050, which require an eventual reduction up to 90% in CO2 emissions, the rate of renovation is still relatively low. There is an increasing demand to upgrade both the physical condition and the performance of the building, with the...conference paper 2015
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Konstantinou, T. (author)Over the next decade investment in building energy savings needs to increase, together with the rate and depth of renovations, to achieve the required reduction in buildingrelated CO2 emissions. Although the need to improve residential buildings has been identified, guidelines come as general suggestions that fail to address the diversity of...journal article 2015
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Loussos, P. (author), Konstantinou, T. (author), Van den Dobbelsteen, A.A.J.F. (author), Bokel, R. (author)The existing building stock has been in the focus of European Union policies for energy savings. Nevertheless, energy certification schemes refer mostly to operational energy and usually do not consider aspects related to the life cycle of the building. To look at the overall energy cost during the lifespan of a building, the energy used to...journal article 2015
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Konstantinou, T. (author)Over the next decade investments in buildings energy saving need to increase, together with the rate and depth of renovations, to achieve the required reduction in buildings related CO2 emissions. Although the need to improve residential buildings has been identified, guidelines come as general suggestion that fail to address the diversity of...conference paper 2015
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Konstantinou, T. (author)The starting point of the research is the need to refurbish existing residential building stock, in order to reduce its energy demand, which is a necessary step to reach the ambitious energy and decarbonisation targets for 2020 and 2050 that require an eventual reduction up to 90% in CO2 emissions. In this context, the rate and depth of...doctoral thesis 2014
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Konstantinou, T. (author), Knaack, U. (author)Given the very low renewal rate of the building stock, the efforts to reduce energy demand must focus on the existing residential buildings. Even though awareness has been raised, the effect on energy efficiency is often neglected during the design phase of refurbishment projects. This paper discusses an integrated approach to energy-efficiency...conference paper 2013
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Wilkinson, S. (author)Given the relationship between energy consumption, greenhouse gas emissions and climate change, the built environment has significant potential to lessen overall emissions. With around half of all greenhouse gas emissions attributed to the built environment; it has a significant role to play in mitigating global warming. With large percentages...conference paper 2011
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Gruis, V.H. (author), Roders, M.J. (author), Straub, A. (author)Supply chain partnerships within housing refurbishment have not been given much specific attention which may be found surprising because the refurbishment market is becoming of increasing importance compared to new construction and has specific characteristics that require adapted approaches to supply chain integration. In this paper approaches,...conference paper 2011
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Wilkinson, S.J. (author), Remøy, H.T. (author)Local Authorities worldwide are encouraging adaptation as a means of reducing building related urban energy consumption and greenhouse gas emissions. The City of Melbourne is promoting the retrofit of 1,200 CBD properties before 2020 with sustainability measures as part of their policy to become a carbon neutral city. Australian cities date from...conference paper 2011
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Ebbert, T. (author)Two thirds of all office real estate in Europe is older than 30 years. While the load bearing structure of a building can last for a century, the interior design is renovated at relatively short intervals. Practice has shown, however, that at the age of twenty to thirty years the facades and climate installations of a building do no longer...doctoral thesis 2010
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Zijlstra, H. (author)The work of architect Gerrit Th. Rietveld (1888 – 1964) is appreciated throughout the world. Many of the well-known buildings he designed have survived to the present. Some have been restored or refurbished, depending on the condition of the building, current needs of the building users, etc. Rietveld himself had a very clear vision about...conference paper 2009
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Garvin, S. (author), Reid, J. (author), Scott, M. (author)Flooding is a major problem for many people in the United Kingdom, posing a risk to health, safety and wellbeing, and resulting in widespread damage to property. The scale of the problem can be gauged from the following quotation (OST, 2004): Nearly 2 million properties in floodplains along rivers, estuaries and coasts in the UK are potentially...report 2005
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Konstantinou, T. (author), Knaack, U. (author)Refurbishing the existing building stock is an acknowledged issue in the building industry. Even though awareness has been raised, the design phase of refurbishment projects is often problematic. The decisions taken in the early stages of the design determine the final result; however, the assessment of the environmental performance only happens...journal article