Energy retrofits: factors affecting a just transition to better indoor air quality

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dc.contributor.authorCoggins, Ann Marieen
dc.contributor.authorHogan, Victoriaen
dc.contributor.authorMishra, Asit Kumaren
dc.contributor.authorNorton, Danielen
dc.contributor.authorFoster, Declanen
dc.contributor.authorWemken, Ninaen
dc.contributor.authorCowie, Hilaryen
dc.contributor.authorDoherty, Edelen
dc.date.accessioned2024-11-04T12:33:54Z
dc.date.available2024-11-04T12:33:54Z
dc.date.issued2024en
dc.description.abstractIn comparison with other European countries, Ireland has a disproportionately high number of poorly performing energy-inefficient buildings. Consequently, Ireland has one of the most ambitious energy retrofit programmes in Europe. The aim of this study was to evaluate the impact of deep energy renovation measures i.e. (replacement of heating system and upgrade to building envelope) on indoor air quality, thermal comfort and ventilation in a sample of primarily social housing in Ireland. A mixed methods approach including measurement of indoor air quality and a thermal comfort questionnaire survey was employed. Indoor concentration measurements of PM 2.5 , carbon dioxide, formaldehyde, and radon along with measurements of air temperature and relative humidity were made (N=14). Occupants (n=56) completed a thermal comfort questionnaire survey pre- and post-retrofit. Data collection ran from autumn 2020 until autumn 2023. Thermal comfort improved post-retrofit along with occupant satisfaction with the indoor thermal environment and heating-systems. Post-retrofit, higher bedroom CO 2 , and higher PM 2.5 concentrations were recorded in both living areas and bedrooms. Occupant behaviours e.g. blocking wall vents were significant predictors of poorer ventilation while smoking indoors was related to higher concentrations of PM 2.5 . In general, homes that had mechanical ventilation systems installed were better ventilated. Underventilation, as indicated by visible condensation or mould was observed in half of the social homes surveyed and reported by questionnaire respondents (26 %). Tailored communications to occupants regarding the important role of ventilation and indoor air quality is required as part of retrofit to optimise impacts on IEQ.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid100058en
dc.identifier.citationCoggins, A.M., Hogan, V., Mishra, A.K., Norton, D., Foster, D., Wemken, N., Cowie, H. and Doherty, E. (2024) ‘Energy retrofits: Factors affecting a just transition to better indoor air quality’, Indoor Environments, 1(4), 100058 (13pp). https://doi.org/10.1016/j.indenv.2024.100058en
dc.identifier.doihttps://doi.org/10.1016/j.indenv.2024.100058en
dc.identifier.endpage13en
dc.identifier.issued4en
dc.identifier.journaltitleIndoor Environmentsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/16611
dc.identifier.volume1en
dc.language.isoenen
dc.publisherElsevieren
dc.rights© The Authors. Published by Elsevier Inc. on behalf of International Society of Indoor Air Quality and Climate. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectSocial housingen
dc.subjectDeep energy retrofiten
dc.subjectIndoor air qualityen
dc.subjectThermal comforten
dc.subjectVentilationen
dc.subjectOccupant behaviouren
dc.titleEnergy retrofits: factors affecting a just transition to better indoor air qualityen
dc.typeArticle (peer-reviewed)en
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