There are several ways to protect a building to diminish indoor exposure of occupants. However, each building has its own characteristics and environment and it is recommended to adapt the principles of protection to a specific situation to be efficient. The video, realized by CSTB http://www.cstb.fr/en/ and supported by French Health Ministry and the European Radon Association (ERA), presents the principles of building protection against radon from the ground, and how a technical diagnosis of the building will enable the adaptation of effective corrective actions to a given building.

 Link to the video: https://vimeo.com/505643178/befad42526