Window-opening and indoor climate in new multifamily-dwellings: A questionnaire survey

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


The apartment-block of Flagghusen in Malmö in the south of Sweden was built and designed with the intention to achieve a lower energy use compare to the regulations and a good indoor environment. The outcome of this ambition was evaluated in a first report in 2010 that showed that the overall notion of the perceived indoor climate in the apartments were good but that the measured energy use exceeded the estimated values. It was revealed that the residents air their apartments frequently and for extended periods of time, which was in congruence with the previously made nationwide questionnaire survey BETSI. This observation in combination with the exceeded energy use resulted in the wish for a more comprehensive questionnaire study with in-depth questions concerning the window-opening behavior. A second questionnaire study took place in the heating season of 2012. This study aims at showing the magnitude and frequency of the window opening and to delve in the reasons why residents air their apartments with this second study as basis.


Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Building Technologies


  • Window-opening, airing, comfort, questionnaire survey, indoor climate
Original languageEnglish
Title of host publicationNSB 2014
Subtitle of host publication10th Nordic Symposium on Building Physics,15-19 June 2014 Lund, Sweden : Full Papers
Place of PublicationLund
PublisherLunds universitet, Lunds tekniska högskola, Avdelningen för byggnadsfysik
Number of pages8
ISBN (Print)978-91-88722-53-9
Publication statusPublished - 2014 Jun 15
Publication categoryResearch
Event10th Nordic Symposium in Building Physics - Lund University, Lund, Sweden
Duration: 2014 Jun 152014 Jun 19

Publication series

NameRapport TVBH
PublisherLund university
ISSN (Print)0349-4950


Conference10th Nordic Symposium in Building Physics
Abbreviated titleNSB2014
Internet address