Description of ASHRAE's proposed air tightness standard.

ASHRAE is preparing a standard which addresses the maximum air leakage associated with good construction. This standard, 119P, links Standard 90, which addresses energy conservation in new residential construction, and Standard 62, which specifies the minimum acceptable ventilation to achieve adequate indoor air quality. Within Standard 119P there is currently a classification scheme that groups building tightness into categories depending on envelope leakage, floor area and building height.

Building regulations. Bauvorschriften.

Energy-saving measures vary according to canton in Switzerland. Mentions the building regulations on air infiltration.

Planning recommendations in the work of the SIA on Standards. Plannungshilfmittel im Normenwerk des SIA.

Describes some of the planning recommendations of the Swiss SIA that touch on the subject of air infiltration.

Indoor air pollution by building materials

Due to better insulation and improved airtightness of doors and windows, the supply of fresh air entering a room has been greatly reduced. This in turn causes an increase in the amount of pollutants emitted by different insulation and building materials. Measurements of the formaldehyde concentration in newbuildings have shown that the admissible limits are still exceeded even after a year. Stricter regulations limiting the emissions of pollutants are therefore urgently necessary.

Minimum ventilation requirements and health criteria for products used indoors

A minimum ventilation rate of 25 m3 per person per hour or 1.5 air changes per hour for homes in the Netherlands is discussed. Difficulties in stimulating awareness of adequate ventilation amongst residents in homes with low ventilation rates of 0.5 to 1 ach is covered.

Domestic ventilation - an international comparison Beluftung von Wohneinheiten im internationalen Vergleich

Compares in tables international requirements for housing regarding ventilation requirements of the entire dwelling, plus kitchen, bathrooms and W.C.s, living rooms and bedrooms. Discusses them. Examines the efficiency of ventilation openings and the requirements made on them. Discusses air flow through a house and the effect of wind forces. Notes how effective pressure difference is affected by the distribution of joints and air leaks.

Analysis of low particulate size concentration levels in office environments

Simulation methods and test results are presented here to confirm projections of actual total suspended particulate (TSP) concentration levels for representative office buildings, with particular emphasis on the 0.3 to 5 micron particulate si

Indoor air pollution - Some Canadian experiences

It is only recently that indoor air pollution has begun to attract the attention it deserves in Canadian Governmental and Building code circles. Two main events have been catalytic towards this increased emphasis. First, the ban on the use of ur

Formaldehyde release from building products

During the last fifteen years Urea-Formaldehyde (UF) bonded particle board, medium density fiberboard and plywood have replaced whole wood as a construction material for flooring, wall panelling cabinet work and furniture. At the same time,

Indoor air quality in Canada

The use of urea formaldehyde resins in Canadian houses, the mechanism of formaldehyde releases, health effects, toxicity, carginogenicity, allergic reactions and standards for ventilation are discussed.