English

An overview of the availability, performance and application of inlets for natural supply of ventilation air and the consequences on indoor air quality and comfort

The objective of the study described in this report is to identify barriers restricting the implementation of natural or simple fan assisted ventilation systems in the design of new office type buildings and in the refurbishment of existing such buildings. The perceived barriers are identified in an in-depth study with structured interviews based on questionnaires among leading designers and decision makers.

The rainscreen principle is not new. lt was proposed as early as the mid sixties by researchers of the Division of Building Research of the National Research Council of Canada and the basic principles were developed. lt has been applied to certain exterior wall types but the performance of rainscreen walls remains largely unknown because of the absence of engineering data.