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TitleEvaluating the efficiency of membrane's refurbishment solutions to perform vertical extensions in old buildings using a multicriteria decision-support model
Author(s)Macieira, Mónica Raquel Fernandes
Mendonça, Paulo
Guedes, Joao Miranda
Tereso, Anabela Pereira
KeywordsMulticriteria decision-support model
vertical extensions
architectural membrane materials
Issue date2019
PublisherTaylor & Francis Ltd
JournalArchitectural Engineering and Design Management
CitationMónica Macieira, Paulo Mendonça, João Miranda Guedes & Anabela Tereso(2019): Evaluating the efficiency of membrane’s refurbishment solutions to perform verticalextensions in old buildings using a multicriteria decision-support model, Architectural Engineeringand Design Management. DOI:
Abstract(s)The initial premise of this research is that the relative efficiency of refurbishment solutions with architectural membranes needs to be measured in order to allow its comparison with conventional solutions, helping decision makers to select the most efficient solutions. The evaluation of this efficiency depends on economic features, but also on functional, technological and environmental ones. This study presents a model to solve this problem, using decision trees, multicriteria decision-making methods (SAW and AHP) and a sensitivity analysis. The selection of the criteria and the assignment of the corresponding weights was attained through an expert group survey for a baseline scenario, aiming maximizing functional performance (such as energy savings) and minimizing employed resources (materials, costs, etc.). The most efficient refurbishment solution among the set of alternatives was reached using the developed model. The methodology was applied to a case study - an old building from the nineteenth century, located in Portugal, which was refurbished with a vertical extension. The result reveals that the proposed model is successful and illustrates the potential of this evaluation methodology to compare and quantify the efficiency of a series of different lightweight constructive solutions. It also underlines the advantages of using lightweight building technologies, especially with architectural membrane materials, in building refurbishments.
Publisher version
AccessOpen access
Appears in Collections:CAlg - Artigos em revistas internacionais/Papers in international journals
Lab2PT - Artigos

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