Browsing by Keyword "Building renovation"
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Item Challenges for Digitalisation in Building Renovation to Enhance the Efficiency of the Process: A Spanish Case Study: A spanish case study(2021-11-03) Lasarte, Natalia; Elguezabal, Peru; Sagarna, Maialen; Leon, Iñigo; Otaduy, Juan Pedro; E&I SEGURAS Y RESILIENTES; ECOEFICIENCIA DE PRODUCTOS DE CONSTRUCCIÓNAlthough construction is one of the largest industries in the world, it is one of the least digitised and its productivity is still very low. Excesses of time and cost are common and are even more accentuated for building renovation. Recently, the building information modeling (BIM) methodology has strongly entered in the construction sector and appears to be an effective paradigm shift. Considering all of the previously mentioned aspects, this article addresses the identification and analysis of the critical barriers of renovation and the potential for digitalisation to overcome them using BIM. The methodology that was used is based on an open innovation approach called Living Labs, where consultations with the key stakeholders of the construction process aims for a higher digitalisation to focus on real needs and fitted to the user’s requirements. Starting from a worldwide survey, the analysis of the Spanish casuistry is deepened. From the analysis of barriers and opportunities, the necessary requirements for an optimal BIM application in renovation are highlighted. After identifying the key aspects that each stakeholder’ typology has considered as relevant, a set of key performance indicators have been selected, to monitor the improvements in the renovation process when BIM is adopted.Item Demand Aggregation as a Strategy for Untapping Buildings’ Energy Renovation Potential: Diagnosis and Prioritization Methodology and Case Study from the Basque Country: Diagnosis and prioritization methodology and case study from the basque country(2021-12-15) Nicolas, Olatz; Molina-Costa, Patricia; Tecnalia Research & Innovation; LABORATORIO DE TRANSFORMACIÓN URBANA; GENERALEnergy renovation of post-World War II private multifamily residential buildings has been identified to have a great deal of energy-saving potential but faces a great challenge across Europe, and especially in South Europe, due to fragmented property structures and longer return periods in energy efficiency investments. However, there is great deal of potential in activating demand aggregation in areas with homogeneous typologies. Local authorities play a key role in leading district-scale renovation but lack adequate methods for analysing and prioritizing areas from an integrated perspective, including social aspects. The methodology presented in this paper aims to support local authorities by providing a tool for the diagnosis and prioritization of homogeneous groups of residential buildings to address their renovation based on an analysis of their needs and opportunity factors. First, the methodology sets the universe of analysis; second, based on indicators, it provides comparative information within the municipality, which leads to a prioritization of areas for building renovations according to the state of the building and to the socio-economic profile of the residents; lastly, a detailed diagnosis of selected groups is performed, providing information to design the Renovation Action Plans accordingly. The application of the methodology in Basauri is presented in this paper.Item A Methodology for the Digitalization of the Residential Building Renovation Process through OpenBIM-Based Workflows(2021-11-05) Armijo, Alberto; Elguezabal, Peru; Lasarte, Natalia; Weise, Matthias; DIGITALIZACIÓN Y AUTOMATIZACIÓN DE LA CONSTRUCCIÓN; ECOEFICIENCIA DE PRODUCTOS DE CONSTRUCCIÓN; E&I SEGURAS Y RESILIENTESThe European building industry is facing a strong increase in renovation processes, which are still non-cost-effective, involve unproperly coordinated stakeholders, are disturbing for the occupants, and cause important inefficiencies in the overall renovation process. In this context, digitalization and Building Information Modelling (BIM), as an enabler, is the key solution that may drive renovation interventions to ensure a more successful and leaner process, aiding the whole value chain of actors to achieve its full potential. This research describes the OpenBIM methodology applied in order to transform the implicit knowledge from the stakeholders involved in the building renovation process, not structured enough for automation, into an OpenBIM digital process based on the BIM standards. The outcomes of this research are the OpenBIM ready workflows that represent the renovation process and information requirements according to the involvement of different stakeholders rooted in the analysis of barriers, requirements, and needs. Those workflows are the basis for the future development of specific products and tools for boosting digitalization and interoperability in the renovation process.Item Políticas e instrumentos de fomento de la rehabilitación energética en francia y alemania(2021) García-Madruga, Carolina; Molina-Costa, Patricia; LABORATORIO DE TRANSFORMACIÓN URBANA; GENERALEl objetivo del artículo es analizar las políticas de apoyo a la rehabilitación energética de viviendas en Francia y Alemania, dos de los países europeos con mayores tasas de renovación. Para ello se analizan los documentos oficiales de la administración central de ambos países, acudiendo a los boletines oficiales y a fuentes primarias de los distintos ministerios o de otros agentes involucra-dos en el desarrollo y ejecución de las diferentes estrategias sectoriales (energía, vivienda, cambio climático, bienestar social, etc.) que afectan a la política de rehabilitación. Para ambos casos de estu-dio se incluyen los siguientes ámbitos de análisis: visión global de las políticas de rehabilitación en cada país, instrumentos de financiación, mecanismos para la movilización de agentes y para la activa-ción de la demanda, e identificación de elementos replicables en el contexto español