A new ventilation strategy for humidity control in dwellings.

This report presents the results from the registration throughout a month of relative humidity, temperature and outdoor air exchange as well as the concentration of carbon dioxide in each room of an inhabited single family house, in which all rooms are ventilated by a mechanical balanced ventilation system with variable air volume. The outdoor air rate is controlled by the relative humidity, which is kept on a value adequate to reduce the living conditions for house dust mites and prevent condensation on the indoor surfaces of the building.

Strategies for improving IAQ.


6th AIC Conference: Ventilation strategies and measurement techniques (Book of Proceedings)

Contains twenty seven papers from the sixth AIC Conference as follows: Ventilation, the balance between energy and well-being; The infiltration component of ventilation in New Zealand houses; Ventilation research and characterization in three types of residences; A passive ventilation system under trial in UK homes; Indoor air quality and air exchange in bedrooms; Effect of unvented combustion appliances on air exchange among indoor spaces; Air exchange rates based upon individual room and single cell measurements; Multiple cell air movement measurements; Continuous air renewal measurements

6th AIC Conference: Ventilation Strategies and measurement techniques: Supplement to Proceedings.

Five supplementary papers from the sixth AIVC Conference as follows: The performance of ventilation in an untight house; Influence of open windows on the interzone air movement within a semi-detached dwelling; Interpretation and error analysis of multi-tracer gas measurements to determine air movement in a house; Inhabitant's behaviour with regard to ventilation. A report of the work of Annex VIII; A multi-tracer system for measuring ventilation rates and ventilation efficiencies in large mechanically-ventilated buildings.

Investigation of crawl space ventilation and moisture control strategies for B.C. houses.

This report outlines a research project _funded by the Canadian Mortgage & Housing Corporation (CMHC) Research Division for the purpose of investigating problems related to crawl space construction in -British Columbia. Research was carried out ·between June/1990 and February /1991. A number of groups, including the Technical Advisory Committee of the B.C. Canadian Home Builders Association (CHBA), the CMHC Regional Office, and the New Home Warranty Program (NHWP), had identified problems with crawl space moisture control and ventilation strategies.

Watch out for faulty cathedral ceiling construction!


Theoretical and experimental analysis of different ventilation strategies in a test room.

The paper presents an original computer code for the analysis of contaminant diffusion in rooms developed at the Politecnico di Torino and its experimental validation by means of a test facility located at the University of Basilicata (Potenza). Thevelocity fields in isothermal conditions, together with localages of the air, have been analysed and compared, with different ventilation strategies and number of air changes.