La Mondiale Headquarters
- Building Type : Office building < 28m
- Construction Year : 2011
- Delivery year : 2012
- Address 1 - street : 59370 MONS-EN-BARœUL, France
- Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
- Net Floor Area : 4 000 m2
- Construction/refurbishment cost : 6 900 000 €
- Number of Work station : 250 Work station
- Cost/m2 : 1725 €/m2
Primary energy need
(Calculation method : RT 2005 )
Built as part of the extension of the head office of the insurance group La Mondiale, this Passive® building can accommodate up to 250 employees.The building is 5 storeys high with a basement, for a total of 5400 m² of built area. The building has a pole / beam structure and the facades are made of timber. On this building site, wooden life bases were also set up. The building is certified passivhaus, HQE and BBC.
Sustainable development approach of the project ownerThe construction of a Passive® Building is part of the overall approach to sustainable development of the La Mondiale Group (signatory of the UN World Pact since 2003), at the occasion of the reunion of the variouscompetence centers in one site. This is a great experiment that is fully integrated in the Corporate Social Responsibility approach the Group AG2R La Mondiale, especially for the scale of the Mons-en-Baroeul site, the first establishment of the group and headquarters of the group.
We wanted to go beyond mere compliance with thermal regulations, by experimenting more efficient and environmentally friendly buildings. And a challenge: to associate employees and neighbors to the project, from design to delivery, so that the installation goes smoothly.
Architectural descriptionTimber and masonry construction, facade with large weatherboarding, wood wool insulation, high vegetated roof holding rainwater, concrete slab, reinforced air tightness in the entrance hall.
Building users opinion
"The building is beautiful, it immediately found its place among the other buildings on the site. However, the technical teams needed a little time to tame it, especially its heating control system which requires a fine setting. The first months have therefore not always been easy. People were sometimes too hot or too cold, depending on the floors and the seasons.
In addition, we made the finding of a slight difference between technical expertise and experienced users. In these cases, dialogue is necessary and everyone must do part of the way: put blinds if employees express that they do not see well their screens, for example .
Once the settings done, the building presented a good level of comfort. We are proud and wish to build on this experience to further develop our environmental policy at the site, making sure to articulate with quality of life at work and the necessary economic performance that characterize AG2R La Mondiale."
Brigitte Villette, Director of Site
If you had to do it again?
Passivhaus demands extreme care during the designing stage but also during construction. The skills of engineers, technicians and companions from Rabot Dutilleul Construction find all their meaning. We would be happy to work on similar other projects of such energy and environmental performance.
See more details about this projecthttp://passivhausprojekte.de/index.php?lang=en#d_2768
Rabot Dutilleul Construction
03 20 89 03 11
AG2R La Mondiale
Other consultancy agency
03 28 55 28 40http://www.etringenierie.fr
Assistance to the Contracting Authority
Type of market
Design and implementation
- 34,00 kWhep/m2.an
- 96,00 kWhep/m2.an
Real final energy consumption
- 0,40 W.m-2.K-1
Important work done in partnership with the occupants on reducing electricity consumption: light clients, low consumption lighting, printers, photocopiers, coffee machines in small number and shared. This allows to pass below the threshold of 120 kWh/m².year) of final energy consumption
- Condensing gas boiler
- Water radiator
- Individual electric boiler
- No cooling system
- Double flow heat exchanger
- No renewable energy systems
- 3 000,00 m2
- 40,00 %
- 2 400,00
+33 (0)3 27 32 44 12http://www.salola.eu/
Structural work / Carpentry, cover, titghtness
Vapor barrier compatible with timber construction. Health label A +
Nathan Nyong - +33 (0)6 14 90 82 68http://www.bluekit.fr/a-propos/bk-factory/
HVAC, électricité / ventilation, cooling
The installation of BlueKit® ensures hygienic ventilation and significant energy savings while respecting the obligation of ventilation and fire detection in elevator shafts and service ducts. Simultaneously, the ventilation of the elevator shaft is ensured in case of failure and during maintenance work to garantee the safety of passengers and maintenance personnel.
Steico Universal rain barrier
+33 3 88 11 25 70http://www.steico.fr/
Structural work / Structure - Masonry - Facade
Insulating panels rainscreen and windproof for roofs and walls. Wood fiber insulation panels compliant with NF EN 13171, EN 13986 and EN 622-4.
Wood fiber insulation panel WF-EN 13171-T3-TR1-MU2-AF5 compliant with EN 13171.
Construction and exploitation costs
- 8 000 000 €
- 4,00 KgCO2/m2/an
Life Cycle Analysis
Reasons for participating in the competition(s)Biosourcé : façade bois, isolation en fibre de bois et ouate de celluloseEnergie : certification passivhausSanté : certification passiv haus et cibles HQE TP
Chantier vert particulier avec une base vie éco conçue.
Troisième Révolution Industrielle :- Efficacité énergétique- Economie Circulaire