French

Provides the results of tests into tracer gas concentration decay carried out in 15 Belgian apartments (Concours CHT) in 1982 to determine the rates of air infiltration. The tests formed part of a research programme which included pressurisation

Discusses some problems of interpretation of the French regulations concerning domestic ventilation promulgated 24th March 1982. Notes in particular problems connected with natural ventilation.

Illustrates the building, comprising 24 flats in four storeys constructed in 1957 and heated by an oil fired boiler. Notes the intensive monitoring of the thermal characteristics of the building since 1980, with readings from 600 sensors.

Provides the first results of a comparison of computer predictions of building energy demands with measurements in actual buildings - the Maugwil single family house and the "La Chaumiere" block of flats. Describes the buildings and summarises the measurement results and predicted values in graphs. Concludes the results indicate that the DOE-2 program can predict the thermal behaviour of buildings with an accuracy to within 5-10% on condition that it uses precise hourly meteorological and air change rate data. Stresses the important influence of the program user.

Defines types of condensation occurring in houses and describes practical ways for the householder to control surface and concealed condensation. Gives instructions to builders for installing air/vapour barriers to meet the required standards, and shows ways in which ventilation can control condensation.

Measurements of dark smoke and SO2 concentration made inside and outside a school showed no significant difference in the case of smoke but SO2 concentrations indoors were only 71% of those outside. Holiday periods, when the buildings were unoccupied gave similar results to those periods when thepupils (non-smokers) were present.

The perfomance of single-family houses built to the new swedish building code was considered. In the code, the requirements for thermal insulation for different building sections were strengthened, and completely new requirements for a building`s airtightness were introduced. One site- built design acheived a estimated 1/3 reduction in energy consumption, but another less airtight factory-made house showed serious shortcomings in the indoor climate acheived.

Ventilation efficiency involves two aspects, to preserve thermal comfort, draughts should be avoided and yet one tries to obtain the best "sweeping out" which corresponds with a maximum exhaust of contaminants from the occupied zone for a given flow rate.< Reports study of 75 tests of ventilation efficiency made in a climatic roomrepresenting a heated living room. Thermal comfort was tested by measuring the air velocity both in the ventilation jet and in the occupied zone.

Discusses standards and testing procedures for window air and water tightness. Describes apparatus used at the Technical Centre for Wood. Gives brief results of airtightness tests on 70 windows of different types subjected to a pressure of 10mm of water and of water tightness tests on 40 windows. Describes a test wall, designed to enable "hurricane" tests to be made. Appendices giveinformation on precipitation in France and discuss water-proofing products.

Reports study of wind and rain over fifteen years and gives table of results. Reports measurements of wind pressure and driving rain on buildings. Discusses laboratory measurements of the tightness of facade elements under pressures of up to 50 Pa. and with temperature differences of -40 to +30 deg.C. across the facade. Describes pressurization of buildings and gives results of measurements in test dwellings. Discusses movement of joints in buildings and describes measurement of this movement.< Discusses permeability of both flat and sloping roofs.