Ventilation in Sweden - state of the art

The National Board of Housing, Building and Planning (Boverket) has initialized a compilation of knowledge about the current situation in Swedish ventilation. The purpose being to summarize an as broad and correct understanding as possible of who the industry is, what rules that applies, where there are knowledge centres and what development needs are required to be supported for the industry. Ventilation systems has developed from simple to high-tech sensor-controlled with the main task of removing unwanted airborne substances (e.g. odours) and excess heat, in an energy efficient way. Data was collected from stakeholders dealing with ventilation and indoor climate. A group of knowledgably consultants and scientists have collected information, analysed different aspects of ventilation, and presents the results in a report available in Swedish. Ventilation situation in residential buildings varies from other types of buildings that house widely differing businesses. Different types of activities place different demands on the buildings' air quality, thermal comfort, etc. For the operation of a building, it is important to clarify the conditions and requirements that determine needed airflow. Quite small, oversights and mistakes can ruin the possibilities for the ventilation system's to function properly. The main outcome of the project is the presentation of the state-of-the-art position of ventilation in Sweden. Ventilation is a vital part of the building's system and the prerequisites for correct ventilation function. Seemingly, banal user behaviours can have a major impact on the control of the indoor climate. Regulations and rules that govern and apply for ventilation and indoor climate comes from a number of international, national organisations. More than ten Swedish authorities define regulations influencing ventilation. This affects how measurement and verification of indoor climate and ventilation can take place with different methods and instruments depending on which properties are studied. The survey contributes to the dissemination of knowledge about the industry, stakeholders, technology, systems, construction, controls, operation and maintenance as well as research and development. God inomhusmil