Annex VIII is a two year task sharing project, started offically in 1984. Although some research had already been done on the problem of inhabitant's behaviour with regard to ventilation, none had gone so far as to access whether and how the ventilation behaviour can be modified in order to save energy and by taking into account the conflicting requirements, energy conservation and adequate indoor air quality.
By means of interviews this document describes occupants' window opening behaviour and draws from this certain sometimes surprising information about their motivations.
An abridged version of the study carried out under the auspices of the Federal Office of Energy by the Institute for Building Research of the Swiss Federal Institute of Technology, Zurich.
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