During winter periods in four types of newly built terraced dwellings and in apartments of a flatbuilding,the daily behaviour and motivations of the inhabitants with respect to airing and ventilation have been studied. In total the information was obtained from 279 households. A combination of verbal interviews, diaries and technical measurements are used as methods of investigation. On basis of the findings,calculations can be made about air flows in occupied dwellings.
The paper describes the main results from a research project performed by "The Mobile Laboratory of Indoor Climate Measurements" one of the five mobile laboratories of the Institute. The aim of the project was to investigate if undesirable consequences occurred in the indoor climate when using an energy saving method consisting of reducing the mechanical exhaust from the "wet rooms" to app. 40 per cent of the normal performance during 12 hours of day and night.
Within the framework of the International Energy flgency (IEA) Annex VIII , "Inhabitants Behaviour with Regard to Ventilation" an investigation has been carried out on the use of windows in an apartment building in Schiedam. The measurements have been done by the TNO Division of Technology for Society. They started in November 1984 and stopped in May 1986, Three inquiries and diaries have been set up in the tno heating seasons and the summer period to get additional information from the dwellers, In the 6th AIC conference [1] paper 20 dealt with the first heating season of this project.
This research attempts to offer partial answers as to how and why inhabitants of a rented apartment building behave as they do in aeration. The authors adopted a two-fold approach : first, by using computerised data recording of outdoor and indoor temperatures per room, the number of hours of sunshine, the surface temperature of radiators and the opening of the windows in each room;second, through interviews with the tenants, sometimes filmed, in order to ascertain their behaviour patterns and underlying motivations in ventilation.
In this paper we approach the subject of ventilation and occupant behavior in multifamily buildings by asking three questions: 1) why and how do occupants interact with ventilation in an apartment building, 2) how does the physical environment (i.e., building characteristics and climate) affect the ventilation in an apartment, and 3) what methods can be used to answer the first two questions. To investigate these and other questions, two apartment buildings in Chicago were monitored during the 1985 - 1986 heating season.
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