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Methodology for the study of the envelope airtightness of residential buildings in Spain: A case study

AuthorsFeijó-Muñoz, Jesús; Poza-Casado, Irene; Alonso González-Lezcano, Roberto; Pardal, Cristina; Echarri, Víctor; Assiego De Larriva, Rafael; Fernández-Agüera, Jesica; Dios-Viéitez, María Jesús; Campo-Díaz, Víctor José del; Montesdeoca Calderín, Manuel; Padilla-Marcos, Miguel Ángel; Meiss, Alberto
Airtightness of the envelope
Blower door test
Residential buildings
Issue Date2018
PublisherMultidisciplinary Digital Publishing Institute
CitationEnergies 11(4): 704 (2018)
AbstractAir 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.
DescriptionThis article belongs to the Section Sustainable Energy.
Publisher version (URL)https://doi.org/10.3390/en11040704
Identifiersdoi: 10.3390/en11040704
e-issn: 1996-1073
Appears in Collections:(IETCC) Artículos
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