While controlling the GHG emissions, the issue of the student's health and comfort was especially taken care of:
- Beyond winter comfort, summer comfort already is and will be increasingly an essential concern in buildings. Designing a school capable of keeping a maximum temperature of 26°C without any active cooling system after 3 heatwave days adn with 30 students per class, was the challenge the team had to take on.
- By cross-integrating environmental vectors: bioclimatic orientation, heavy inertia and over-insulation of the envelope, exhaustive solar protection, assisted natural over-ventilation, high albedo of the outside floors and preservation of enclaved green spaces, the school adapts to strong climatic variations, with nearly no use of energy.
Other factors strongly contribute to the comfort and health of the users :
- Air quality helps calm and concentration of the students: in this school, set up on a former industrial site, there was a double challenge, on CO2 levels and on specific pollutants.
- Here the adopted air renewal system anticipates on the regulations for schoold and other places of children care, with a rate of 25m3/h.person. Materials were carefully selected with labels certiying minimal VOC emissions. VOC measurements when delivering the building confirm the success of this approach.
- In addition, the double flow assisted natural ventilation (by turrets) is innovative and requires almost no maintenance when it comes to mechanical systems.
- Acoustic quality of the rooms, which is critical to the quality of attention of the students, has been validated by post-construction tests.
- Positive influence of daylight is valued by the generous sizes of the bays, the mastered dosage through mobile solar protections and the secondary daylinght income.
- Views and access to the outside, the priviledged relation of the courtyards to the public space encourages social bonding and participates to peace in the community.
Design & execution : CIRIDD © 2011-2019 construction21
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