Media Library Wild South

  • Building Type : Library, documentation center
  • Construction Year : 2017
  • Delivery year : 2017
  • Address 1 - street : 97480 SAINT-JOSEPH, France
  • Climate zone : [Af] Tropical Wet. No dry season.

  • Net Floor Area : 2 494 m2
  • Construction/refurbishment cost : 6 200 000 €
  • Cost/m2 : 2485.97 €/m2
  • Primary energy need :
    58 kWhep/
    (Calculation method : Other )
Energy consumption
Economical buildingBuilding
< 50A
51 à 90B
91 à 150C
151 à 230D
231 à 330E
331 à 450F
> 450G
Energy-intensive building

The media library of Saint-Joseph (Reunion) questions the identity of the contemporary architecture of Reunion, that of the Sud Sauvage more precisely. It refers to images , block of basalt, fagot of vetyver, geko, kalbanon but especially for uses , taking again the progressiveness of the sequences of traditional entries, creating a progression between the public space and that of the intimate one.
The building incorporates a direct relationship to the outside, blurring its limits with the interior. Only way to succeed, the design of an open building, passive, so without air conditioning. He achieves this by insulating, protecting himself from direct sunlight, by ventilating naturally and by adding a low-pressure chimney.

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Data reliability



    Commune de Saint-Joseph

Construction Manager



    Thermal consultancy agency


    definition of sustainable strategy and thermal design (envelope, natural cooling)

    Environmental consultancy

    Adhoc - Paysagiste

    Other consultancy agency

    ABTEC - Econonomiste

    Structures calculist

    Gui Jourdan

    Other consultancy agency

    Héliotropic + EFITEC - BET Fluides

    Other consultancy agency

    Intégrale Ingénierie - BET VRD

Contracting method

Separate batches

Owner approach of sustainability

Total sustainable development approach

Energy consumption

  • 58,00 kWhep/
  • 500,00 kWhep/
  • Other

  • 29,00 kWhef/
  • Office 7.7
    Lighting: 7.4
    VMC (Sanitary / Changing rooms): 0.6
    Air brewers (5,0)
    Climatsation (Server, precious funds, guardian): 6.1
    ECS: 0.8
    Various: 3.0

    Project delivered in December 2017 so waiting to return.
    The PREBAT program of the ADEME will allow a precise measurement.

Envelope performance

    The indicators Ubat, compactness or airtightness are not applicable for a non-conditioned building in a tropical climate. Only count the sun protection of the porosity of the envelope to make natural refreshment
    Solar factor of bay windows: N 0,30 E 0,30 S 0,40 O 0,25
    Solar factor of opaque walls: 0.05
    solar factor of the roofs: 0,02
    porosity of facades: 30%

Real final energy consumption

    2 017


    • No heating system
    • Solar Thermal
    • Tape
    • No cooling system
    • Natural ventilation
    • Solar Thermal
  • 70,00 %
  • completely passive ventilation and cooling except for a local server and local old funds

     98 m2 de photovolataque en attente de mise en place

GHG emissions

  • 24,00 KgCO2/m2/an
  • 29 kWh / m² year of electricity with a Reunion mix at 0.820 kg CO2 / kWh

Life Cycle Analysis


    • wood structure on:

    - facades and roofs of the youth boxes (Mamothèque, story room, ...)

    - facades R + 1 of the administration building

    - façades R + 1 to R + 3 of the building Adults

    • Wooden cladding on facades R + 1 to R + 3 of the building Adults
    • Wooden shingles on roofs of youth boxes; wood cladding
    • Wood solar protection
    • Acoustic ceilings made of solid wood on the Vetiver building

Water management

    65% of the water requirements of the sanitary systems fed by the recovery tank system

Indoor Air quality

    In any case, the air exchange rates required by the natural cooling are between 120 and 300 vol / h and evacuate in a few minutes any internal pollution.

Health & Comfort

    inconfort selon la méthode de Givoni sur moins de 1 à 3% du temps selon les locaux

    The mismatch between natural ventilation and acoustics has been treated by multiplying the absorption devices in vertical and horizontal walls:

    • Acoustic wool between fishnet and floors
    • Perforated placo + absorbent
    • Wool of compressed wood in dressing
    • Acoustic baffles in ventilation shaft
    • Rubber floor for impact noise reduction




    Opere di finitura / Pavimentazione

    Natural rubber tiles in slabs 1mx1m

    MOA convinced by the product



    Opere strutturali / Tamponamento, Rivestimento, Tenuta

    Green roof on the base and above the youth area

    Participates in the landscape of the floors, totally accepted by MOA

Urban environment

The media library assumes its status as public equipment, it is now a signal in the heart of a city center, a meeting place especially for the youth of St. Joseph.
The square is thus treated like a public place, terminals to sit down, an amphitheater taking place in bottom of scene, to wait or to attend the shows outside the walls of the media library.

Land plot area

7 394,00 m2

Parking spaces

47 places

Passive building without air-conditioning functioning through ventilation through a low-pressure chimney. Protection of solar radiation and over-insulation. Light wooden facades to reduce the inertia of the walls. Water management by maximum permeability, establishment of green roofs and recovery of sanitary EP.
Contribution of the landscape as much in its relation to the interior / exterior space as for reducing the effect of overheating at the foot of the building.

Contest categories

Energie & Climats Chauds

Energie & Climats Chauds

Coup de Cœur des Internautes

Coup de Cœur des Internautes

Prix des Etudiants

Prix des Etudiants

Green Solutions Awards 2018 - Bâtiments

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    Green Solutions Awards 2018 - Bâtiments