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Sustainability 2016, 8(10), 990; doi:10.3390/su8100990

A Decision Making Tool for a Comprehensive Evaluation of Building Retrofitting Actions at the Regional Scale

1
Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy
2
Baldessari Ingegneri Srl, Strada del Dòs Grum 18, 38123 Trento, Italy
3
Istituto Trentino per l’Edilizia Abitativa SpA, Via Guardini 22, 38121 Trento, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Joanne Patterson and Derek Sinnott
Received: 10 May 2016 / Revised: 19 September 2016 / Accepted: 27 September 2016 / Published: 30 September 2016
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Abstract

Buildings in Europe account for 40% of total primary energy consumption and 36% of CO2 emissions. Nearly one-half of the building stock was built before modern energy efficiency standards and need urgent renovation. Urban retrofitting has emerged as a crucial factor for bringing about a radical change, the new construction rate being lower than 1%. Nevertheless, an accepted and consolidated methodology for refurbishing the existing housing stock is still lacking. The study presents an operating methodology for the optimization of the retrofitting process, based on energy efficiency and cost-effectiveness, as well as users’ comfort, in the building asset of ITEA SpA, the social housing institute for the Province of Trento (Italy), which manages more than 600 buildings. The research consists of the following stages: (1) definition of building classes, similar in age, dimension, typology, construction system and location; (2) analysis of plant systems and recognition of cases significant for classifying buildings in term of energy class; (3) identification of possible improvements and related cost-benefits; and (4) extension of the results to the whole building class. A tool is here proposed, intended for use by ITEA in order to set medium- and long-term plans. The tool does not consider only the effective sustainability of the controlling body intervention but also the final users’ full satisfaction. View Full-Text
Keywords: energy retrofitting; sustainable intervention; social housing; energy performance energy retrofitting; sustainable intervention; social housing; energy performance
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Albatici, R.; Gadotti, A.; Baldessari, C.; Chiogna, M. A Decision Making Tool for a Comprehensive Evaluation of Building Retrofitting Actions at the Regional Scale. Sustainability 2016, 8, 990.

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