English

Describes air leakage tests performed in 2 similar houses (one with added insulation and increased airtightness) using the fan pressurization method. Air infiltration measurements were also conducted using the tracer gas decay method and CO2

Reports on a study conducted to determine the impact of different ventilation rates on office building energy use, first cost, and peak electrical demand. Uses the DOE-2.1 computer program to simulate an energy-efficient office building in 5 cit

Reports the results of over 100 tests of 6 different warm air schemes. The temperatures and the removal of a tracer gas were monitored at several points and the data used to determine the temperature efficiency and ventilation efficiency. For ea

Describes method and equipment for measuring air leakage from windows.

Makes an inventory of different outside wall structures and details their construction with respect to heat losses. Notes that in some countries, little consideration is made of energy losses and that Building Regulations in Sweden are strictest.

Reports on the problem of increased carbon monoxide poisoning in houses resulting from new energy conservation construction techniques, which improve the airtightness of houses.

Gives some conclusions from a detailed computer analysis of the energy consumption of 600 branch bank buildings of The Bank of Novia Scotia, spread across Canada. Divides energy management into 3 categories:

States that the calculation of building energy flow is very complex, and so validation is a vital element in the development of any model. Describes an IEA R and D project to compare 23 computer programs (from 8 different countries) both in terms of consistency between programs, and in thei relative accuracy in modelling the behaviour of a real building (the Avonbank office block in Bristol). Summarizes the major conclusions developing out of the project and discusses the most important aspects which need to be considered in the development of a reliable computer program.

Reports on a project carried out in the Caswell Hill and Riversdale areas of Saskatoon to investigate the effectiveness of sealing with caulking and weatherstripping to reduce air leakage. This involved sealing 10 homes, and also insulating the attics and basements of five of these houses after thesealing work. A control group of 10 homes which had been insulated without particular attention being given to sealing procedures were also monitored. The homes were pressure tested by the National Research Council before and after sealing to measure the reduction in air leakage.

Reports on a study carried out by HUDAC and DBR on four identical detached houses built in Ontario in 1977. House 1 was built according to the insulation requirements of the 1975 Ontario Building Code, the others were constructed with increased levels of insulation and air tightness. Some of the aims are: