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Methodology for the Study of the Envelope Airtightness of Residential Buildings in Spain

Title: Methodology for the Study of the Envelope Airtightness of Residential Buildings in Spain
Authors : Feijó Muñoz, Jesús
Poza-Casado, Irene
González Lezcano, Roberto Alonso.
Pardal March, Cristina
Echarri, Víctor
Assiego de Larriva, Rafael
Fernández-Agüera, J.
Dios-Viéitez, María Jesús
Del Campo-Díaz, Víctor José
Montesdeoca Calderín, Manuel
Padilla Marcos, Miguel Ángel
Meiss, Alberto
Keywords: Residential buildingsInfiltrations
Publisher: MDPI
Citation: Feijó-Muñoz, J.; Poza-Casado, I.; González-Lezcano, R.A.; Pardal, C.; Echarri, V.; Assiego De Larriva, R.; Fernández-Agüera, J.; Dios-Viéitez, M.J.; Del Campo-Díaz, V.J.; Montesdeoca Calderín, M.; et al. Methodology for the Study of the Envelope Airtightness of Residential Buildings in Spain: A Case Study. Energies 2018, 11, 704.
Abstract: Air leakage and its impact on the energy performance of dwellings has been broadly studied in countries with cold climates in Europe, US, and Canada. However, there is a lack of knowledge in this field in Mediterranean countries. Current Spanish building regulations establish ventilation rates based on ideal airtight envelopes, causing problems of over-ventilation and substantial energy losses. The aim of this paper is to develop a methodology that allows the characterization of the envelope of the housing stock in Spain in order to adjust ventilation rates taking into consideration air leakage. A methodology that is easily applicable to other countries that consider studying the airtightness of the envelope and its energetic behaviour improvement is proposed. A statistical sampling method has been established to determine the dwellings to be tested, considering relevant variables concerning airtightness: climate zone, year of construction, and typology. The air leakage rate is determined using a standardized building pressurization technique according to European Standard EN 13829. A representative case study has been presented as an example of the implementation of the designed methodology and results are compared to preliminary values obtained from the database.
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ISSN: 1996-1073
Issue Date: 21-Mar-2018
Center : Universidad San Pablo-CEU
Appears in Collections:Escuela de Politécnica Superior

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