Health and Social Campus

  • Building Type : School, college, university
  • Construction Year : 2008
  • Delivery year : 2015
  • Address 1 - street : 272, Chemin de la Graine Sure 97100 SAINT-CLAUDE, France
  • Climate zone : [Aw] Tropical Wet & Dry with dry winter.

  • Net Floor Area : 3 650 m2
  • Construction/refurbishment cost : 5 150 000 €
  • Cost/m2 : 1410.96 €/m2
  • Primary energy need :
    kWhep/m2.an
    (Calculation method : )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building

The Health and Social Campus (HSC) is a university based on health and social professions. This new construction is composed of two buildings: the administrative building (air-conditioned) and the teaching building (with natural ventilation, except for the CDI and the amphitheater).

 

The HQE approach

The HQE approach is a global environmental approach which aims to lead to the realization of an architectural project :

  • whose impact on the local, regional and global environment is minimal ;
  • whose impact on the comfort and health of its occupants is optimal.

This approach is facilitated by the use of a certain number of tools that make it possible to qualify the environmental quality of the project, to set quantitative and qualitative objectives to be reached and to monitor the implementation of these objectives.

The HQE approach is therefore a methodological contribution to the realization of an architecture of sustainable development.

This approach is above all a "quality approach". It can be described as "win-win-win", that is to say, win-win for the owner or manager of a building, win-win for its users or occupants and, finally, win-win for the people living in its immediate or distant environment.

This building is intended to be a model in its approach to tropical environmental quality applied to ventilation, materials and optimized narrative light and vegetation (HQE type).

This building is a major component of the overall project of the city of knowledge, a link between the sites thanks to its openness, its transparency, the "green corridor", a vegetal and pedestrian link open to all, which crosses it and its environmentally friendly implementation.

The health and social campus is designed for comfort of use, in search of healthy atmospheres, suitable for concentration and study. 

A well thought-out control of consumption, optimized architectural options for orientation, ventilation and solar protection, the choice of eco-certified and sustainable materials, for an exemplary building in its tropical H.Q.E. approach.

 

Choices concerning the implantation of the Campus

The location and morphology of the buildings of the Health and Social Campus are the result of a critical analysis of the bioclimatic and environmental constraints and potentialities of the site. The north-south orientation of the buildings is the best compromise between natural air-conditioning and optimal solar protection, taking into account the site effect which influences the direction of the prevailing winds.

The complete separation of the two volumes makes it possible to economically satisfy the envelope requirements induced by each type of environment: natural air conditioning and artificial air conditioning.

The compactness of the administrative building, by minimizing the exchange surfaces, avoids thermal losses and thus favors the sobriety of the needs, while the slenderness of the teaching building offers the largest possible surface of openings to the trade winds, its implantation allowing it to free itself from any masking effect at the same time as it eliminates the noise nuisance caused by the classrooms.

 

Hygro-thermal comfort

An essential element of the general comfort insofar as it can compromise the quality of learning if it is not treated in a thorough manner (one works and concentrates less effectively in a building where it is hot), the thermal comfort of the teaching building, operating in natural ventilation, is obtained by the measures described below.

The measures directly concerning the thermal treatment of the building are the following:

Development of the ground and treatment of the periphery of the buildings :

  • treatment of the grounds, vegetated to more than 90% (with adapted and water-saving species) to reduce the albedo, and minimize the sunlight capturing asphalt surfaces around the buildings ;

These measures alone not only create comfort by lowering the ambient temperature by 1 to 3°C at the periphery of the buildings and therefore in the buildings themselves, but they also create comfortable outdoor spaces for relaxation and conviviality.
 

Optimization of the solar protection of buildings :

Without solar protection, there is no comfort in the buildings when they are not air-conditioned and no minimization of air-conditioning loads when they are.
The designers have carried out a refined optimization, building by building, facade by facade, by means of adapted and proven computerized dimensioning tools (Ecotect, EnergyPlus, ...) of the building's solar protection techniques and systems.

The general principles of solar protection are as follows :

  • Roofs (which can receive up to 7 kWh/m².day in very sunny weather): thermal insulation (polystyrene with a minimum thickness of 5 cm) and greening of the roof (administrative building and janitor's accommodation) to reduce the overall solar transmittance of the roof to less than 1%, this value going further than the levels of proven and known requirements such as those of the RTG 2020 ;
  • vertical glazed walls equipped with light colored shading devices sized according to orientation ;
  • for the teaching building, an over-roof has been placed for insulation and ventilation, as well as solar protection calculated according to the orientation (atrium, sunshade...).

All these measures lead to an overall reduction of the percentage of solar energy incident on the building and transmitted to the interior of the building of less than 1.5%, i.e., in extreme sunshine conditions, less than 0.15 kWh/m2-day, i.e., an average transmitted power of less than 6 W/m2 of surface. This level places the buildings at a level of global solar protection more than twice as effective as the level of requirements of the RTG 2020.


Optimization of natural ventilation in the teaching building and the janitor's apartment :

After the solar protection limiting the thermal contributions, the thermal comfort in the teaching building and the janitor's accommodation will be created by the ventilation of the premises which allows on the one hand to evacuate the internal loads and, on the other hand, to create a speed of air on the occupant lowering up to 4°C the temperature felt by him.

An excellent capacity of natural ventilation of the buildings is allowed :

  • in terms of quality and design : classrooms of the teaching building crossing, respective position of the inlets-outlets of ventilation, modulability of the openings (ventilation by frames) leading to the control of the directional flows and the speeds ;
  • in terms of sizing : the porosity (hole rate) under the least efficient aeraulic wind (daytime thermal break) will be increased to values higher than the specifications of the RTG 2020 and allowing a homogeneous air circulation and a venturi effect.

For periods without wind or when the wind speed is insufficient to ensure comfort in non-air-conditioned areas, it can be obtained by means of ceiling fans.

 

Energy balance

The use of renewable energies, and in particular photovoltaic solar energy, is a key point of the project. 
Having obtained, thanks to the quality of the envelope, the equipment and the surroundings, a low energy consuming campus, we can achieve our Negawatt approach (sobriety, efficiency, renewable) by installing on the roof of the teaching building, ideally facing south at 16°, a photovoltaic field that can go up to 90kWp for a maximum of about 760 m² in self-consumption calculated to meet more than 100% of the energy needs of the buildings.

This installation will make it possible to exploit the sunshine 365 days a year, the electricity being produced and consumed directly by the building or injected into the network on a permanent basis (more details in the "Energy" section).

Photo credit

ATELIER 13

Contractor

    Conseil régional de Guadeloupe

Construction Manager

    ATELIER 13

    Périne Huguet

Stakeholders

    Designer

    ATELIER 13

    Périne Huguet, Eric Ramlall, Laurent Laval

    Project management and architectural design of the project


    Designer

    ACAPA

    Frédéric Pujol

    Architectural design


    Structures calculist

    BIEB

    David Malaval

    Structure and VRD


    Other consultancy agency

    Robert Célaire Consultant

    Robert Célaire

    Thermal and HQE


    Other consultancy agency

    A2E

    Jean-Louis Hernandez

    fluids

Energy consumption

    The simulations, carried out using the specialized Retscreen software, show that this installation will be able to provide on average, annually, a net production of up to 143,000 kWh (covering more than 100% of the building's needs).

    At this time, no DPE has been made and the photovoltaic panels have not been installed. For the moment, the building correctly controls its consumption but is not passive.
    Using the simulations, we could ideally have arrived at a passive building with a consumption of approximately -14 kWhep/m².year.

Systems

    • No heating system
    • Solar Thermal
    • VRV Syst. (Variable refrigerant Volume)
    • Natural ventilation
    • Solar photovoltaic
  • 100,00 %
  • The photovoltaic panels have not yet been installed but aim to meet more than 100% of the building's energy needs. This is due to the analysis of the placement of the Campus and its strong sunshine throughout the year.

Resiliency

    • Inondation/Ruissellement
    • Séisme
    • Vent / Cyclone

    For wind/cyclone hazards :

    The main frames of the buildings are oriented perpendicular to the average axis of the trade winds, favoring effective and inexpensive solar protection. In addition to the well-thought-out orientation, sun visors are present in order to stop projections and thus protect the facades
    The joinery of air-conditioned rooms will have a very high air, water and wind tightness (A4A4V4) while the blinds of rooms with natural ventilation will be at least A2E2V3 classification.

     

    Regarding earthquakes:

    For several years, all new building constructions have been calculated for very high seismic risks. Guadeloupe being classified as a maximum seismicity zone of 5, it therefore makes sense for buildings to be resilient in the face of this hazard.

     

    Rain and runoff

    The greening of the building and the exterior spaces of its plot also makes it possible to limit the waterproofing that promotes runoff :

    • the ground for the car parks and pedestrian walkways has been stabilized and planted for the car parks and pedestrian walkways ;
    • part of the rainwater is recovered (photovoltaic roofs) and stored in cisterns to be redistributed for watering and flushing toilets.

     

    Sunshine and thermal comfort :

    Peripheral solar protection of buildings is ensured by high-stem vegetation (with species adapted to the climate) and a reduction in albedo.
    A reduction of more than 95% of the direct sunlight transmitted by the openings and windows was allowed by a combination of the choices of orientation of sunshades and caps. More than 750m² of green roof on the administrative building and on the caretaker's accommodation.

    This configuration associated with a great modularity of the ventilation grids (three distinct grids in the direction of the height) and the auxiliary air blowers allow an optimal thermal comfort.

Health & Comfort

    Regarding the optimization of natural lighting, the goals are to :

    • favor the capture of diffuse radiation (use of shading to block direct solar radiation) by vertical openings, capturing the light as high as possible in the vertical walls ;
    • limit the impact of direct rays by appropriate solar protection and treatment of the albedo by revegetation of the feet of the facades ;
    • distribute openings in walls of different orientations and limit partitioning inside buildings, thus promoting multi-directional lighting and avoiding, ipso facto, under-lit areas ;
    • use various techniques to control and distribute the luminous flux, in particular:
      • creation of shelves of lights (administrative building) ;
      • significant use of second days in interior partitions (in all office areas) as particularly effective vernacular techniques for lighting circulations ;
      • use of light colors for the ceilings and walls, and medium for the floor.
    • to obtain, by iterative calculations, satisfactory daylight factors (FLJ) leading to a quasi-autonomy of lighting during the normal hours of occupation of the campus.

Product

    Bioclimatic orientation of the building

    Gros œuvre / Structure, maçonnerie, façade

    The layout and morphology of the HSC buildings stem from a critical analysis of the site's bioclimatic and environmental constraints and potential. Thus the north-south orientation of the buildings constitutes the best compromise between natural air conditioning and optimal solar protection, taking into account the site effect which influences the direction of the prevailing winds.


    Modularity of ventilation frames

    Second œuvre / Menuiseries extérieures

    Main frames of the buildings oriented perpendicular to the average axis of the trade winds favoring effective and inexpensive solar protection.


    Revegetation

    Sun protection and reduction of albedo by high-stem vegetation and reduction of runoff by 90% of vegetated outdoor spaces.


    Recovery of rainwater (photovoltaic roofs)

    Aménagement extérieurs / Gestion des eaux pluviales

    Recovery of part of the rainwater (photovoltaic roofs) and storage in cisterns for redistribution for watering and toilet flushing supply.

Construction and exploitation costs

  • 5 150 000

Urban environment

The Health and Social Campus is located in the town of Saint-Claude near the capital of Guadeloupe, Basse-Terre. This building is in a complete university campus composed of itself, the school "second chance and trades" as well as a university residence. This campus is in the immediate vicinity of several major administrations, such as the DIREN (Regional Directorate for the Environment), the Regional Council or the prefecture.
This signal building is a major component of the overall project of the city of knowledge, it makes the link between the different sites thanks to its openness, its transparency and the "green flow" (plant and pedestrian link open to all) which crosses it. . It fits into its environment thanks to 90% vegetated exteriors. All the species used are adapted to the tropical climate to respect the environment.

Building Environmental Quality

  • Building flexibility
  • indoor air quality and health
  • acoustics
  • comfort (visual, olfactive, thermal)
  • water management
  • energy efficiency
  • renewable energies
  • integration in the land

Reasons for participating in the competition(s)

During its design, a critical analysis of the site's bioclimatic and environmental constraints and potentialities was carried out in order to implement relevant solutions for adapting the building.

Hazards such as wind, rain and sunshine as well as the tropical context were therefore taken into account. Solutions such as vegetation, the orientation of the building and the choice of equipment improve the adaptation of the building to the hazards identified.

In addition, the project to install photovoltaic panels contributes to the regional policy of controlling electricity demand, through this exemplary project that is the Health and Social Campus.

Building candidate in the category

Prix Tertiaire & Industriel

Prix Tertiaire & Industriel

Trophées Bâtiments Résilients 2022

 building
 tertiary building
 revegetation
 health and comfort
 energies
 renewable energies
 photovoltaic
 materials and solutions
 eco-materials
 Resilience
 Resilient Buildings Awards 2022

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