A database on the airtightness performance of houses built according to current construction practices (1980 to 82) was established, province by province, across Canada. Airtightness tests were conducted using the fan-depressurisation method and the results were compared by province, builder, house style, and house size. The survey shows considerable variation in the leakiness of the houses when the results are compared by province. Less variation in airtightness exists when the houses are compared by builder, house style, and house size on a provincial basis.
States that current building regulations on ventilation are very inadequate. Describes the Scottish Development Department document The future of building control in Scotland. This proposes a local authority liaison committee with reps from building control and fire services to co-ordinate work on operating building control in Scotland. It also recommends approval of standard house types of different conditions between authorities. Suggests this could usefully be introduced to England and Wales.
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