This report covers results from a recent study by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) investigating the air infiltration rates achieved by newly constructed houses and apartments in five Australian capital cities. The study compared some of these results to the assumed air infiltration rates calculated in the NatHERS software. It also identified air leakage points in each dwelling and tested the specific flow rates for some of these leakage points. The report provides recommendations for some of the common performance problems found in Australian homes. 

The study was supported and funded by the Department of Climate Change, Energy, the Environment and Water (DCCEEW).

Air Infiltration of New Dwellings in Australia Report (PDF)