CSTB
The Centre Scientifique et Technique du Bâtiment, CSTB, is an industrial and commercial public enterprise (EPIC), serving its customers and the public interest.
Its ambition is to imagine the buildings and cities of tomorrow by supporting and securing sustainable construction and renovation projects, to improve the quality of life of their users, and to anticipate the effects of climate change.
Its field of expertise covers construction products, buildings and their integration into neighborhoods and cities.
The CSTB is the operator of the Observatoire de la Qualité de l’Air Intérieur (OQAI).
The CSTB brings together multidisciplinary skills and carries out 5 key activities:
- Research and expertise: creating and mobilizing knowledge
- Evaluation: supporting innovation
- Certification: enhancing the quality of an offering on the market
- Testing and: optimizing a product, process or project
- Disseminating knowledge: sharing knowledge with stakeholders
In the field of Indoor Air Quality (IAQ), CSTB contributes to :
- Characterizing sources of chemical emissions into indoor air
- Improving the microbiological quality of building air
- Qualifying the impact of products and systems on indoor air quality in scale 1 spaces
- Assessing the impact of gaseous soil pollutants
Headquartered in Marne-la-Vallée, the CSTB employs 636 people and operates over 30 test platforms on a 48,000 m² site. Its teams of engineers and researchers provide construction and urban planning professionals with a wide range of services in the fields of energy and the environment, health and comfort, risk management, economics and human sciences.
Located in the 16th arrondissement, the Paris site regularly hosts CSTB meetings with its stakeholders: institutional presentations, specialized group meetings, or events. As a showroom for the CSTB's activities, it is a privileged meeting place for those involved in the construction industry.
This site is also home to the CSTB's professional training activities, and its subsidiaries.
CSTB's indoor pollution research laboratories are located in Marne-la-Vallée and Grenoble, on a site of over 2,000 m². ARIA comprises laboratories dedicated to pollution characterization, platforms reproducing real-life conditions (homes, classrooms, etc.), and mobile laboratories for in situ measurement.
The Automated House for Innovative Air Research (MARIA) is a full-scale pavilion equipped with various heating systems (convectors, underfloor heating, wood-burning stove) and ventilation systems (natural draft ducts, single-flow ventilation, double-flow ventilation). Calibrated holes are made in the façade to simulate variable airtightness defects. MARIA is instrumented to simulate human presence and behavior, and to measure a number of environmental parameters.
In its Grenoble air chemistry laboratory, the CSTB measures chemical pollutants in indoor air. In particular, it studies volatile organic compounds (VOCs) and aldehydes, including formaldehyde, emitted mainly by construction and maintenance products. CSTB's environmental chambers recreate realistic conditions of use for materials and products, in terms of temperature, humidity and air renewal.
Also in Grenoble, CSTB has a laboratory specialized in studying the impact of gaseous soil pollutants on indoor environments. These include chemical gaseous pollutants such as hydrocarbons, volatile organic compounds (VOCs) and radiological pollutants (radon).
An autonomous CSTB mobile unit can be deployed on site (e.g. industrial facilities, crèches, schools) to search for and qualify sources of contamination, and to assess human exposure to microbiological aerosols.
To complement the experimental approach, CSTB develops and adapts indoor air quality modeling tools. It also boasts unique know-how in data processing, for diagnosing and identifying sources of pollution.
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