About us

This website (hereinafter referred to as the “Website”) is the property of the Centre Scientifique et Technique du Bâtiment (CSTB)

A public institution of industrial and commercial nature (EPIC)
84, avenue Jean-Jaurès, 77420 Champs-sur-Marne, France
Telephone: +33 (0)1 64 68 82 82

Registered on the register of companies of Meaux under reference number 775 688 229.

President: Étienne CRÉPON
Legal representative and publication manager: Étienne CRÉPON
Managing editor: Florence FERRY

Design and hosting of the Website:

BP 209
06904 Sophia Antipolis cedex, France
Telephone: +33 (0)4 93 95 67 00

Declaration formalities

Pursuant to Act No. 78-17 of 6 January 1978 on data processing, data files and individual liberties, we inform you that the automatic processing of the personal data contained on the Website has been declared to the French Data Protection Authority (CNIL) under reference number 1633109.

All users are entitled to access and modify their personal data. Users may send a request by letter to

84, avenue Jean-Jaurès
77447 Marne-la-Vallée cedex 2

or by email to for their data to be amended, completed or deleted.

The personal data obtained from users via a form cannot on any account be passed on, either free of charge or against payment, to physical persons or legal entities that do not belong to the company.


The user alone is liable for his or her use of the information and/or documents available on the Website, and accepts all of the possible consequences of such use, for which the CSTB cannot be held liable, without recourse against the CSTB.

The information and/or documents available on the Website can be modified at any time, and may have been updated. In particular, they may have been updated between the time when they were downloaded and the time that the user reads them.

It should be noted that the CSTB may at any time terminate its services or change their characteristics, without notice and without any entitlement to compensation.

Intellectual property rights

The general structure, texts, statistical and cartographic documents, databases, animated and non-animated images and films comprising the Website are the property of the CSTB and are protected as such. No licences or any rights other than the right to consult the Website are granted to anyone with regard to intellectual property rights.

Any reproduction or use of the Website documents is subject to the prior written agreement of the CSTB.

The trademarks of the CSTB and its subsidiaries included on the Website are registered trademarks. Any total or partial reproduction of the trademarks included on the Website, without their express prior authorisation, is therefore prohibited.


Access to certain sections and services of the Website is limited and requires the use of a password. This password which enables users to log in to these sections and services is strictly private and confidential. The users alone are liable for use of their password. The users undertake to keep their password secret and not to disclose it in any form whatsoever.

Warning about links to third party websites

The Website contains hyperlinks to websites managed by third parties. The CSTB cannot exercise any permanent control over these websites, or accept any liability for their content.

The inclusion of these links does not mean that the CSTB approves of the elements contained on these websites.

The CSTB cannot be held liable for the content of these websites, or for the fact that these websites are listed on the Website.

The creation of hyperlinks to the Website is authorised, provided that:

  • internet users are clearly informed that they will be directed to the Website, in particular by indicating the URL visibly and in full,
  • the link opens a new window in the browser and the page opened by the link is not embedded in other pages, in particular by means of frames belonging to the website that contains the link.

In any case, the CSTB reserves the right to request the removal of a link if it considers that it does not comply with its editorial policy or may damage its interests.

Applicable law

The content of the Website is subject to French law. All users acknowledge the jurisdiction of the French courts for all matters relating to the content and use of the Website or the resulting rights of recourse.

Photo credits

© Alain Szczuczynski
© Association HQE
© Fotolia
© GFC Construction
© Laurent Blossier
© Patrice Morel
© Shutterstock