Resilience - The farm of possibilities

  • Building Type : Other building
  • Construction Year : 2019
  • Delivery year : 2020
  • Address 1 - street : 29 Rue d'Amiens 93240 STAINS, France
  • Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.

  • Net Floor Area : 1 883 m2
  • Construction/refurbishment cost : 3 072 000 €
  • Cost/m2 : 1631.44 €/m2
  • Primary energy need :
    100 kWhep/m2.an
    (Calculation method : RT 2012 )
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

Résilience is the head office of Novaedia, a work integration cooperative that develops a local, organic and solidarity food loop. It was built on La Ferme des Possibles in Stains (93).

In line with the cooperative's practices, inspired by permaculture and in symbiosis with its surrounding area, the building was conceived in a bioclimatic way with bio / geo-sourced materials and reused materials. It reconciles a low-tech and high-tech approach within a single building: waterspout walls and raw earth plasters rub are combined to a kitchen-laboratory and a heat-fridge-pump.

The building has a wooden structure, glued laminated porticoes and CLT floors, made with wood from French forests. The insulating facades, interior and exterior, are made up of prefabricated wooden boxes filled with compressed straw and plastered with raw earth on both sides.

The glazed facades are made with single-glazed wooden windows, retrieved from the thermal renovation of a social housing complex in Epinay-sur-Seine, less than 4 km from the site.

The soil from the spoil was used to make the finishing plasters, by mixing it with cellulose fiber from the packaging boxes on the site. This earth is also present in the cafeteria bar, mixed with crushed concrete to make adobe walls. These mixtures avoided adding sand to stabilize this very clayey soil.

Many reuse materials have been used in the construction and equipment of Resilience. Their origins are multiple: Bellastock, Urban Metabolism, Réavie, Bon Coin, the City of Paris or gleaned by the companies themselves on their renovation sites.

The solar gains are favoured by buffer spaces and a waterspout wall. Given the large presence of refrigerated premises, the heated spaces benefit from a thermofrigopump, thus recovering the energy used to produce cold to heat the premises.

 

Sustainable development approach of the project owner

The approach of the Novaedia cooperative is based on permaculture. It is not only a question of how to cultivate, but above all of associating the existing human resources and energies in the area, making them work together to bring about new practices, adapted to the world to come. Hence the name Resilience.

Novaedia's environmental approach is consistent with these principles and its commitment to integrating people excluded from the working world. The raison d'être of Novaedia is indeed to foster a social and solidarity economy in working-class neighborhoods to develop eco-activities, by allowing the support and training of disabled workers and young inhabitants towards promising professions.

Its know-how is to reconcile local development, sustainable development and professional integration, according to the idea that the resources of some meet the needs of others and that waste does not exist. La Ferme des Possibles aims to become an educational showcase to build awareness of permaculture and sustainable development.

Thanks to the construction of Resilience and the developments of La Ferme des Possibles, Novaedia aims to make it an experimental urban farm, which aims to be replicated in all urban areas. The objective is to demonstrate that a plot of approximately one hectare is sufficient to accommodate orchards and vegetable gardens, greenhouses, central kitchen, logistics and restaurant. But also by associating it with neighboring farms, local players in the social and solidarity economy, local communities and residents, a dynamic of citizen mobilization can be initiated around the issues of food, environment and biodiversity in working-class neighborhoods while creating jobs for the future.

Architectural description

Résilience houses logistics and production premises on the ground floor: storage, packaging, kitchen laboratory and a cafeteria. The first floor accommodates offices, training and meeting spaces.

The architectural aspect is a volume of great simplicity, inspired by a farmhouse, in reference to its agricultural vocation, totally transparent on its most exposed facades, making its materiality obvious: reuse, wood, earth and straw .

Distribution constraints within this complex culinary preparation laboratory program overlap perfectly with bioclimatic principles. Only a narrow strip of land was constructible, oriented north-south. This linearity is fairly consistent with the program, which results in a sequencing of functions. From the receipt of food to the delivery of meals, a series of operations induces this sequencing, following a forward march; from the reception of foodstuffs to the distribution of finished products, without crossing. The plan was therefore designed with a double peripheral circulation, making it possible to irrigate the premises in a simple and functional way, without crossing clean and dirty circuits. These unheated distribution spaces, on the outskirts of the building, form buffer spaces, lit by glazed facades in re-used joinery. The interior facades housing the heated premises are made of wooden boxes filled with compressed straw, covered with a mud plaster on both sides. The southern end of the chain houses the restaurant.

The south gable is treated as a waterspout wall, made of reused BTC bricks (from the Ville des Terres of BELLASTOCK). Surrounded by the gardens of the neighboring pavilions, it heats, cools and illuminates the restaurant while preserving the privacy of the place.


Building users opinion

Resilience occupants are proud of their building. However, they sometimes regret the temperature in the buffer spaces in winter when there is no sun! We have perhaps not communicated enough on the conditions of use of such a space, which is to be considered as an outdoor space, sheltered from rain and wind, which can participate in the heating of the building, but only on sunny days ...

If you had to do it again?

If it had to be done again today, it would be zero concrete! Since we have found a way to not use concrete foundations, thanks to screw piles supporting a wooden floor.

Then, the glazed facades of the buffer spaces would be double glazed and not single glazed.

See more details about this project

 https://topophile.net/faire/la-ferme-des-possibles-ou-de-la-serendipite/
 http://materiauxreemploi.com/visite-de-chantier-resilience-la-ferme-des-possibles-a-stains/
 https://www.bellastock.com/projets/resilience/?fbclid=IwAR35d8sy4CZpBAIg_0JgnOCIyFiO4h58VdCd2Y_MMwdxdmPRJwg8jogcLNk

Photo credit

Photo credit: Archipel Zéro

Contractor

    Novaedia

    Mohamed Gnabaly

Construction Manager

    Archipel Zéro

    Frédéric Denise

Stakeholders

    Other consultancy agency

    BELLASTOCK

    Clara Bergia

    Assistant MO Reuse


    Company

    Depuis 1920

    Nathan Levinson

    Mainly the realization of curtain facades in reused windows


    Company

    DALKIA FROID SOLUTION

    Christian Rabin

    HVAC company, thermo-fridge-pump


    Environmental consultancy

    Réavie

    Mohamed Hamaoui

    Supply of reuse plumbing equipment


    Company

    Bois 2 Bout

    Benoït de Bellefonds

    Timber frame, CLT floors, Installation of prefabricated wooden boxes with straw insulation (Ekobloks)


    Company

    AF Rénovation

    Hakim Fernane

    Carpentry-placo, supply and installation of re-use materials: interior double-glazed windows and cast iron radiators

    A Coeur de Chaux

    Georges Bodnar

    Lime-plaster renderings on exterior earth renderings


    Company

    Terraterre

    Franck Lamy

    Implementation of BTC bricks


    Manufacturer

    Rainbow Ecosystem

    Raphael Petit

    Realization of Ekobloks, prefabricated wooden boxes filled with compressed straw and coated on both sides with a raw earth plaster

Contracting method

Separate batches

Energy consumption

  • 100,00 kWhep/m2.an
  • 157,00 kWhep/m2.an
  • RT 2012

    Heating 45.40 / Lighting 52.50 / Auxiliary 2.60

    Unknown to date. As the building has a large part of its premises refrigerated, and unheated buffer spaces, the RT 2012 calculation is unsuitable.

Systems

    • Heat pump
    • Water radiator
    • No heating system
    • Heat pump
    • Reversible heat pump
    • Others
    • Free-cooling
    • Single flow
    • Double flow heat exchanger
    • Heat pump

    Buffer spaces, waterspout walls

Construction and exploitation costs

  • 1 800,00
  • 499 000,00
  • 210 000
  • 3 285 000
  • The total cost includes a heat pump and the production of cold for laboratories (kitchens and production space), which considerably increases the ratio per m2. Without this equipment, the price of the building is around 2,600,000 € / m²

Urban environment

The Ferme des Possibles site is surrounded by large urban areas: facilities, business area and residential area. By its size, its shape and its materiality, the building fits into this peri-urban context at the articulation of these 3 zones.

The footprint of the building, approximately 1000 m², and its length of 70 m are consistent with the dimensions of the Bois Moussay business area and the large surrounding facilities (high school, clinic, etc.) while its shape, its orientation and materiality, with its eastern facade in white plaster and its terracotta-tiled roof bring it closer to the nearby pavilions.

The implementation of the project was very constrained, because the land as an agricultural zone was not constructible, except on a narrow north-south oriented strip, in continuity with the residential area, on which the program was just fitting. This long configuration was exploited to integrate a sequencing of the premises, materializing a step forward in the processing of foodstuffs.

Land plot area

13 000,00 m2

Built-up area

7,00 %

Green space

10 500,00

Parking spaces

10 places for light vehicles
10 spaces for bicycles

Building Environmental Quality

  • indoor air quality and health
  • biodiversity
  • works (including waste management)
  • consultation - cooperation
  • comfort (visual, olfactive, thermal)
  • energy efficiency
  • building end of life management
  • integration in the land
  • building process
  • products and materials

Reuse : same function or different function

    • Structural works
    • Structural framework
    • Indoor joineries
    • Outdoor joineries
    • Partitions
    • Electricity
    • Heating ventilation air conditioning
    • Plumbing
    • Landscaping
    • others...

    Big work:

    - BTC mud bricks

    - Excavated earth reused as plaster, fiberized with the site's cardboard packaging, and adobe bar mixed with crushed concrete

    Framing: Joist offcuts reused as stair treads

    Exterior wood furnishings :

    - Single-glazed windows reused as a glazed facade

    - Double glazed windows reused as interior windows between buffer space and heated rooms

    Partitions: reusable mobile partition

    Interior joinery: re-used glass doors

    Electricity: reuse of lights, and reuse of the cooperative's baskets as lampshades

    Plumbing: WC and reuse hand basin

    HVAC: Reuse cast iron radiators

    Others: Acoustic baffles, plant furniture ...

    Outdoor Facilities :

    - reused granite pavers for outdoor terraces

    - site pallets reused as benches and outdoor tables

    The mass of the building, excluding the foundations and low concrete floor, is 570.1 tonnes .

    The mass of re-used materials forms a total of 72.24 tonnes, or 12.67%

    - re-used single-glazed wooden windows: 450 m²

    - wooden double glazed windows: 60 m²

    - mobile partition: 11m²

    - glass re-use doors: 14 units

    - cast iron radiators: 42 units - 100%

    - plumbing equipment: 14 - 100%

    - suspended luminaires: 60 - 100%

    - BTC bricks: 6000 units, 125 m²

    - joist offcuts 5x15 cm for stair treads: 140 ml

    - granite paving stones: 140 m²

    - BTC mud bricks reused to make a waterspout wall, sold by Bellastock, from the Ville des Terres

    - Excavated land reused in situ as plaster and rammed earth

    - Cardboard packaging from the site reused in situ to fiberize the earth plasters

    - All-terrain in crushed concrete, resulting from demolition, bought at Point P in Saint-Denis for the realization of the adobe wall of the bar

    - Joist offcuts reused in situ for stair treads

    - Single glazed windows sourced by Bellastock, resulting from a thermal renovation in Epinay-sur-Seine, reused as a glazed facade

    - Double-glazed windows reused as interior windows between buffer space and heated premises, supplied by the company, from various cleanings and the Bon Coin

    - Reusable mobile partition, from the ENGIE site in Saint Denis, via Métabolisme Urbain

    - Reused glass doors, from the ENGIE site in Saint Denis, via Métabolisme Urbain

    - Lighting from the ENGIE site in Saint Denis, via Urban Metabolism

    - Fruit baskets from the cooperative reused in-situ as lampshades

    - WC and hand basin provided by the Réavie association

    - Cast iron radiators gleaned from the Bon Coin

    - Acoustic baffles and cafet furniture from the ENGIE site, via Métaboilisme Urbain

    - Granite pavers reused for the outdoor terraces, supplied by the City of Paris

    - Worksite pallets reused in-situ for benches and outdoor tables

Sustainable design

  • 13 %
  • Reuse windows:

    This is the first reuse resource that appeared in the project, from the sketches. It was obvious, to create the large glass facades of a building that we wanted to be bioclimatic. Bellastock quickly identified the opportunity, several months before their deposit. The windows come from the thermal renovation of a social housing complex in Epinay-sur-Seine, 4 km from the Ferme des Possibles.

    The studies integrated this deposit as soon as the building permit was filed. Logistics could be anticipated.

    Bellastock also participated in the design of the glass facades and drafted the CCTP.

    Since 1920, the company has been responsible for transportation from the place of storage, transformation, realization of the framework and the installation of joinery. The transformation consisted of sanding and resizing the frames, with the production of sealing parts and water drops.

    There was some friction during the process, in particular due to logistics, but overall it went well.

     

    BTC

    It is undoubtedly quite rare to have reused mud bricks!

    They were produced in a participatory workshop with soil from Greater Paris, during the summer festival "La Ville des Terres" organized by Bellastock in 2017. When this resource was offered to us, at the price of € 1 per brick, we immediately thought of a storm wall, associated with the reused windows described above, for their high quality of thermal inertia and their aesthetics.

    The BTCs were built by Franck Lamy, from the Terraterre company, with earth mortar. Glass bricks have been added to the waterspout wall, letting southern light filter into the restaurant and giving a very intimate atmosphere.

    Many bricks were not used. Having no room on the site, they remained outside, covered, but they are fragile with regard to water.

     

    Glass doors

    The reuse of these superb steel glass doors are emblematic of the way in which a resource can, at constant cost, enhance the quality of a project, and even magnify it (see Topophile's article on serendipity, the link to which appears in the Description chapter/more details on this project). These doors are a nice surprise. As often in a reuse process, they were not planned for. But when they were found, from their height of 2.70 m, it was obvious that a place had to be made for them.

    Their size and weight were a challenge. It took four people to carry their 150 kg, while handling them with care. The partitions were too light to support them, so we had to make a wooden structure integrated into the partitions to fix them. In the end, the additional costs associated with transport and their integration into the project were equivalent to a new, but ordinary door.

    The finishing coatings on the straw boxes as well as the adobe bar were carried out in a participatory worksite with members of the cooperative, neighbors and volunteers from all walks of life. Their formulation has been studied to avoid any addition of extracted sand, replaced by crushed concrete from demolition and cellulose fiber, obtained in a participatory workshop by soaking and mixing the cardboard packaging on the site.

    Cardboard content in earth plasters: 3%

    Percentage of crushed concrete in the rammed earth: 40%

    Apart from the foundations and the low concrete floor, the design of the building favored reversible construction methods in order to facilitate any change in uses and facilitate its deconstruction.

    The timber frame and CLT floors are assembled by bolting, the wooden boxes filled with straw are also assembled together by bolting, the isothermal partitions and false ceilings are retractable.

    Resilience incorporates a large majority of bio / geo-sourced materials, some of which are reused, for 417 tonnes out of a total mass of the building 570 tonnes (excluding foundations and low slab), i.e. 74% of bio / geo-sourced materials:

    - LC frame, and CLT floors made with wood from French forests, supplied by Piveteau

    - Exterior and interior woodwork, new and re-used

    - Wooden boxes filled with compressed straw, coated on both sides with a plaster of raw earth bodies, prefabricated, Ekoblocks type produced by Rainbow Ecosystem

    - Insulation under the roof in wood wool

    - Acoustic wood fiber suspended ceiling, Fibralith

    - Reuse BTC bricks, made with land from Greater Paris by Bellastock

    - Plasters and rammed earth made with the site's excavated soil, without adding sand

Environmental assessment

    On reused materials: toilets, sinks, windows, doors, radiators, light fixtures, bricks, joists, paving stones and removable partitions, the impacts avoided are as follows:

    • 69.22 tons eq CO2
    • 763.3 m3 of water
    • 88 tonnes of waste

    (Calculations based on environmental data from the INIES database)

Reproductibility and Innovation

    The use of re-used materials was registered from the start of the program. This was an initial request of the NOVAEDIA cooperative, so the process of integrating re-employment was at the basis of the project. It was therefore designed to incorporate a maximum of reused materials.

    This approach was initiated and supported by Bellastock, AMO reuse of the operation. Their contract covered four main resources: reuse windows, BTC, roofing in reuse tiles and Tarn granite slabs, retrieved from the thermal renovation of a tower in La Défense. The integration of these last two resources did not succeed, for insurance reasons concerning the tiles, and unreliability of the holder and complex installation for the granite slabs.

    An operation initiated in this way must make room for other re-use resources, depending on the opportunities that arise. It is easier in this sense than to search for a specific resource. Leaving room for what presents itself in a timely manner is a condition for re-employment with a controlled budget.

    For other resources, we relied on the Urban Metabolism inventory (also carried out by Bellastock), the Réavie association for plumbing, and business cooperation. Indeed, they are well placed to glean resources from their own rehabilitation sites. Even though they were not used to this practice, they all participated enthusiastically, because it fulfills such an obviousness that it feels good!

    So there was no need for a zero lot. Involving companies simplifies the process, clarifies the limits of liability, and helps spread the practice of reuse. Procurement, storage and logistics were handled by themselves, as with any ordinary operation.

    The CCTP was designed with A plans, which corresponded to the implementation of a re-employment resource, to be provided by the company itself. Plan B consisted of the same work but nine. So it relaxed the process. There was no pressure. If we can't find it, that's okay.

Economic assessment

  • 21 400
  • 1 %
  • 107 000

Social economy

    The client is a professional integration cooperative. It was natural that the construction of its tool should be part of a social and solidarity economy approach.

    The use of local businesses and local suppliers has been favored.

    The finishing coatings on the straw boxes as well as the adobe bar were carried out in a participatory worksite with members of the cooperative, neighbors and volunteers from all walks of life. It was about disseminating virtuous practices, simple to replicate, with abundant materials, available everywhere, without damage to the environment; that is to say economically sustainable practices, which will gradually replace harmful practices for the environment and will constitute the professions of tomorrow.

Reasons for participating in the competition(s)

Reuse

Bio / geosourced

Participative works

Building candidate in the category

Bâtiments tertiaires / prix de la construction neuve

Bâtiments tertiaires / prix de la construction neuve

Trophées Bâtiments Circulaires

 reuse
 circular economy
 urban agriculture
 Trophées Bâtiments Circulaires

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