Observing Mother Nature in action: moisture problems in buildings in the southeast.

Presents a selection of moisture problems encountered in the south eastern USA. Discusses moisture in attics, moisture in floor cavities, moisture inside the house, hardwood floors with moisture problems, and vented crawlspaces.

Multicriteria analysis of ventilation in summer period.

Describes a new multicriteria analysis of ventilation during summertime in Europe. These theories are used to determine the best ventilation strategy on a university building, aiming to ensure optimum indoor air quality, occupant thermal comfort, and lower energy consumption when using accelerated diurnal or nocturnal ventilation and/or air conditioning. The article defines the possible actions, then the quality criteria for thermal comfort, indoor air quality and energy consumption.

Air flow through louvered windows in small rooms.

In equatorial warm humid climates, ventilation has been largely adopted as a major strategy for natural passive cooling. In those climates the use porous elements are common to allow for permanent ventilation as temperature rarely drops below 20°C. Nevertheless, the performance of many building components has not been thoroughly determined, making it difficult to predict buildings performance as ventilation rates, estimated in most simulation codes are often based on apertures typologies from temperate and cold regions.