This report outlines research conducted by the University of Otago which looks at the heating and cooling potential of moving roof space air into a home's living areas, as the most common type of home ventilation system does.
The report recommends that this type of ventilation system - known as a "positive pressure" or "roof cavity" system - is not promoted or installed based on potential heating or cooling benefits.
EECA was a part-funder of this Otago University research report.