Final report on the performance of 177 low-energy houses at Pennyland, Milton Keynes, UK. Pressurization tests showed an air change rate of 0.3 ach for the Pennyland houses, compared to 0.7 ach for the control Neath Hill houses. Three quarters of the houses had some condensation and over a half had some mould growth.

The purpose of this investigation was to determine the amount of carbon monoxide that may be expected to be produced during normal cooking. The experiment measured carbon monoxide levels, using multiple burners with and without cooking vessels, and the rate of dissipation of the accumulated gasunder various conditions of ventilation.

Incidence of building occupant health and comfort complaints (tight building syndrome) have been linked to energy efficient, mechanically environmentally controlled sealed building technology and systems now characteristic to most office, commercial and publica buildings.

Pollutants in a substantial number of buildings have now been investigated by public and private agencies. The archive of data on indoor pollutant levels observed in office buildings under conditions of normal operation and occupancy are reviewed using a computer based Building Performance Database. Representative values of 153 pollutants as well as detailed frequency distributions of commonly measured pollutants and of temperature and humidity are presented.

Describes qualitative experimental investigation of the air flow in a scale model representing a typical, average hall. Smoke was used to display the air flows. A mathematical model was also developed. Determination of the turbulent air flow in the model confirms the suitability of the mathematical model foruse in quantitative experiments, in particular for measuring the heat flux density.

Discusses the installation of mechanical ventilation with heat recovery in residential buildings. The various ventilation strategies are summarized for both blocks of flats and single houses. Building components and guidelines are described.

This is a review paper addressing the current state-of-the-art. Concerns that motivate studies of the indoor environment are reviewed in the introduction. The source and typical diurnal variations of the concentration of several air contaminants are discussed in the section on characterization. A dynamic model is described in the section on indoor air quality modelling. Indoor air pollution control techniques are addressed in the last section.

A design is proposed to improve the performance of wind towers (or Baud-Geers) for natural ventilation and passive cooling. Under similar climatological and design conditions, the new design is capable of delivering air to the building at higher flow rates. It can also cool the air evaporatively to lower temperatures. Higher airflow rates and the evaporative cooling capability of the new Baud-Geer design can be fully utilized at night in summer to cool the building mass to lower temperatures. Momentum, mass and energy analyses are carried out for the proposed design.

Includes papers on pitched roofs, flat roofs, wall construction, window and door joints, and weathertightness and water penetration of buildings. The focus is mainly on water penetration but air infiltration and ventilation are also discussed.

This report analyses the data obtained from windows tested for the British manufacturing industry over the past ten years. The tests were conducted according to BS 4315: Part 1: 1968 and the results compared with the stated performance levels given in BS Draft for Development 4:1971. Possible trends in design and performance are indicated.