Describes intiatives made in North America to reduce energy consumption in buildings. Most energy utilities finance energy efficiency improvements on their customers premises. Reports on super-insulated housing and how this type of construction is being implemented in Canada.

Describes tests made in a single-family house to examine the overall effects of the kerosene heater in situ. Results indicate that in a tight house, maximum NOx concentrations can be higher than the ASHRAE and EPA air quality standards for continuous NO2 exposure and can approach the ASHRAE standard for24 hr exposure of NO. In some cases the NOx concentrations could be reduced to below the standard NO2 values by opening a window. Results show that average 24-hr NOx concentrations approach the standard NO2 value in a tight house when the heater is operated for 6.2 hrs.

Discusses the advantages of reducing air infiltration in industrial buildings in terms of energy conservation. States that heat loss due to infiltration is often underestimated or ignored as it is difficult to measure. Concentrates ondoorways as a major source of infiltration, and shows that the type of door used needs to match the requirements of the entrance, such as type and size of vehicle passing etc. Decribes a range of doors suitable for different conditions.

Briefly describes weatherstripping in an industrial building, and discusses different types of seal available for a range of applications.

Measures the pressure on the outlet of a flue on a free-standing scale model in the wind tunnel at IG-TNO, as a function of the height of the flue outlet above the roof, of its position on the sloping roof and the pitch of the roof.

One of a series of investigations of the improper functioning of ventilation and smoke stacks. The problem is essentially one of town planning in which the layout of low and high rise buildings can cause unknown influences at the outlet of vertical stacks on low rise buildings. The study concerns thepressure distribution on and above the roof of a low rise building upwind or downwind of a high rise building as a function of the separation between them for various heights of the high rise buildings.

Reports the results of measurement of ventilation efficiency in a full scale model of a small office with a diffuse air supply, which can be used to improve ventilation efficiency and therefore reduce air supply rates. Steady state and transient definitions of ventilation efficiency are given. Finds that ventilation efficiency depends on air flow rate and heat gain in the office. Higher air flow rates give lower pollutant concentration in the ocupied zone but also more mixing between the occupied and under-ceiling zones.

Treats pilot study where the ventilation was controlled by the carbon dioxide content in the indoor air.

Summarises the sources and the effects on health of tobacco smoke and formaldehyde, and includes general information on air pollution.

Despite having balanced mechanical ventilation, a large number of modern buildings in Sweden have unsatisfactory indoor climate. Problems include mould, irritation of the eyes, nose and throat, skin rashes, feelings of dryness, hoarseness andheadaches. To control ventilation according to requirements the right indicator variable must be selected and the system must permit the proper control in the occupied zones. Measurements of air pollutants were carried out outside and inside a mechanically ventilated office building.