Envie le Labo: a building demonstrating reuse

  • Building Type : Other building
  • Construction Year : 2019
  • Delivery year : 2020
  • Address 1 - street : 10 Rue Julien Lacroix 75020 PARIS, France
  • Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.

  • Net Floor Area : 553 m2
  • Construction/refurbishment cost : 1 500 000 €
  • Cost/m2 : 2712.48 €/m2
  • Primary energy need :
    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

Located in Paris 20th district (Ménilmontant), in the heart of the working-class districts, Envie Le Labo aims to provide practical solutions to citizens to support them towards an eco-responsible and inclusive lifestyle.

The building of the Envie network wishes to promote a circular economy at the service of citizens. With a 70% wood frame, it extends over three floors. On the ground floor, a store is intended to welcome customers with a repair shop for small household appliances, while the upper floors are made up of offices, meeting and entertainment spaces. On the roof is a green roof.

A place of exchange and learning

The objective was to offer a space where people can have their household appliances repaired but also discover the circular economy and get engaged. Thus, educational visits and free thematic workshops around the fight against waste are organized to encourage exchanges around the circular economy. Additionally, 44 beacons scattered around the building allow visitors to explain the composition as well as the origin of reused and recycled materials and objects. They are listed on floor plans located at each level for easy reference.

A strong intention to reuse

Resulting from the end of stock of construction companies and donations from deconstruction (bricks, toilets, mirrors ...), a strong commitment of the Envie Federation was to choose mainly - if not only - materials from the reuse. In total, 19.6 tonnes of new elements were be avoided. A large part of the elements come from the Ile-de-France region (or at most 120km), always in a desire to favour short circuits.

 

 

 

Sustainable development approach of the project owner

Supported by the Envie Federation, a non-profit association, the project has chosen not to be part of a certification process for economic reasons.

On the other hand, it was essential for Envie to demonstrate that it is possible to build and develop more environmentally friendly places with a tight budget.

A strong commitment to a sober and ecological building

As a pioneer in the circular economy since 1984, it was essential that Envie Le Labo reflect the values and know-how of the Envie network.

Three levers were activated for a circular building:

- Reduce thanks to raw finishes (little painting, no false ceiling, few baseboards and formwork)

- Reuse construction materials and objects without transformation: doors, handles, radiators, toilets, sinks, bricks ...

- Re-employ materials to make furniture and partitions (counters, glass roof, coffee table, etc.)

According to the assessment of the circularity of the building carried out by the Evea design office with the support of ADEME Ile-de-France relating to the finishing work and the fitting out of the building:

  • 6.9 tonnes of new elements were not used thanks to the avoidance of materials (materials not discarded at the end of the building's life because they were not used)
  • 2.3 tonnes of new elements were avoided thanks to re-employ (materials kept and used again for a different purpose)
  • 10.4 tonnes of new elements avoided thanks to reuse (materials not discarded and used again for their original use)

In total, 19.6 tonnes of new elements were avoided .

The material recycling rate is 6.1 tonnes, which is significant.

In addition, a green roof has been installed: it allows the retention of rainwater, to keep a cooler temperature during heat waves as well as to promote biodiversity within it.

Local supply and in favor of the social and solidarity economy

Much of the sourcing of materials was done in a short circuit:

a total of 59% of the materials used for the finishing work and interior fittings come from France, including 35% from Ile-de-France. Most of the materials chosen to make the furniture and partitions have traveled less than 120km. In all, over 180 used furniture and refurbished appliances were purchased locally.

Some of the insulation is also bio-based while others are made from recycled cotton.

Envie had recourse to two educational projects and two integration projects as well as to a local Social and Solidarity Economy joinery to manufacture custom furniture and partitions from recycled materials.

Architectural description

The building has a wooden frame with 70% of its structure coming from sustainably managed forests (PEFC). In the same way, a wooden cladding covers the exterior facades made up of reclaimed wood (4 different species from the end of the building site).

The remaining 30% are in concrete blocks for economic reasons.

Unfortunately, the deconstruction of the historic garage did not allow material to be recovered. The original slab was not kept as planned either, for foundation reasons.

Large bay windows and windows and beautiful ceiling heights promote natural lighting, which is also beneficial in terms of energy savings.

Few finishes make it possible to avoid false ceilings, plinths and formwork. Very few paints have been used: all the fermacell, bricks and cinderblock walls have been kept rough.

A partition placed in mezannine, and made from 39 washing machine portholes and wood from an old beam and old windows, constitutes the centerpiece of the building as a demonstrator of the circular economy.

If you had to do it again?

We would be accompanied by a re-employment AMO.

See more details about this project

 https://www.envie.org/envielelabo/
 https://www.construction21.org/france/articles/h/retour-d-experience-envie-le-labo-le-reemploi-a-tous-les-etages.html
 http://materiauxreemploi.com/envie-le-labo-un-nouveau-batiment-demonstrateur-du-reemploi-dans-le-20e-arrondissement-de-paris-visite-par-hannah-hofte/

Photo credit

Tarik YAICI

Contractor

    Fédération Envie

    Nesrine DANI

Construction Manager

    Urban Act

    Alexandre BOUTON

Stakeholders

    Company

    Union Technique du Bâtiment (UTB)

    Thomas Coquin

    General Enterprise


    Others

    Studio Idaë

    Isabelle DAERON

    Design of layout plans, signage design, scenography, educational path, exterior signs, graphic identity


    Others

Contracting method

Lump-sum turnkey

Energy consumption

    RT 2012

Systems

    • Individual gas boiler
    • Individual electric boiler
    • Reversible heat pump
    • Humidity sensitive Air Handling Unit (Hygro B
    • No renewable energy systems

Construction and exploitation costs

  • 1 500 000

Urban environment

The Envie Le Labo building is located in the 20th arrondissement, a popular district of Paris (Belleville-Amandiers district), in Ménilmontant. Previously there was an untapped garage on one level at this location.

The Envie Federation benefited from an opportunity to gain access to land through the establishment of a 40-year construction lease with Paris Habitat.

The location completely corresponded to our expectations, in a district with a strong social mix and very dynamic in terms of citizen initiatives.

It was also a strong desire of the citizens of the 20th district to see a new associative place grow rather than a supermarket establishment project.

Also, in terms of deconstruction, there was only one garage on an existing level.

 

Reuse : same function or different function

    • Facades
    • Locksmithing-Metalwork
    • Indoor joineries
    • Floorings
    • Partitions
    • Plumbing
    • others...

    FLOOR AND WALL COVERINGS

    Reused flexible floor coverings

    Hard floor coverings: reused tiles

    Hard wall coverings: splashbacks and reused wall tiles

    INTERIOR PARTITIONS AND JOINERY

    Interior partitions: reused bricks and partitions made from reused washing machine portholes, wood, windows and glass

    Interior joinery: doors and door handles

    EQUIPMENT

    FURNITURE AND APPLIANCES:

    - dishwasher, coffee machine, refrigerator, tables, desks, chairs, armchairs, office chairs, stools, cupboards

    - custom furniture made from 100% wood, reclaimed polycarbonate and washing machine drums: counters, shelves, bookcase, coffee table, low cabinets

    CLADDING / INSULATION

    Cladding: reused wood cladding

    FLOOR AND WALL COVERINGS

    Soft floor coverings: 44% reused carpets or 0.7 tonnes of reused materials or 182m2

    Coating of hard floors: 100% of the tiles reused, i.e. 26m2

    Hard wall coverings: 100% of the splashbacks and wall tiles reused, i.e. 14m2

    INTERIOR PARTITIONS AND JOINERY

    Interior partitions: 8.7% (by mass) of partitions made from reused materials (wood, glass, windows) and reused (bricks), ie 3.5 tonnes.

    Interior joinery: 8% of doors and handles reused, ie 0.78 tonnes or 5 standard doors and 3 door handles.

    EQUIPMENT

    FURNITURE AND APPLIANCES: 73% (by mass) come from reuse (64%) and reuse (9%), which represents 204 items in total (including 180 from reuse and 24 items from reuse).

    Plumbing equipment: 18% (by mass) of reused radiators i.e. 0.1 tonnes reused or 3 steel water radiators

    Sanitary equipment: 75% reused: WC, washbasins, mixer taps, kitchen sink and professional sink either 0.15 tonnes reused, or 1 kitchen sink with built-in cabinet, 1 professional sink (plunge type), 1 WC, 1 sink, 3 mixer taps, 1 PMR bar and 2 mirrors.

    CLADDING / INSULATION

    Cladding: 90% of the cladding comes from reuse, i.e. 2.4 tonnes (= 211m2): This is wood from 4 different species.

    FLOOR AND WALL COVERINGS

    Resilient floor coverings: 44% (on the surface) of reused materials. This is a carpet made from 42% recycled carbon neutral raw material from the supplier's end of stock.

    Coating of hard floors: 100% of the tiles reused from the end of stocks of Ile-de-France construction sites.

    Hard wall coverings: 100% of the splashbacks and wall tiles reused from the end of stocks of Ile-de-France construction sites.

    INTERIOR PARTITIONS AND JOINERY

    Interior partitions: 8.7% (by mass) of partitions made from reused materials (wood, glass, windows) and reused (bricks) from Ile-de-France.

    Interior joinery: 8% of doors and handles reused from the end of stocks of Ile-de-France construction sites.

    EQUIPMENT

    Furniture and household appliances: 73% (by mass) come from reuse (64%) and reuse (9%), which represents 204 items in total (including 180 from reuse), all recovered in Ile-de-France .

    Plumbing equipment: 18% (by weight) of re-used radiators from the end of stocks of Ile-de-France construction sites.

    Sanitary equipment: WC, sinks, grab bar and mirrors from the deconstruction of the former Ecole Centrale de Chatenay Malabry site, mixer taps from the end of stocks from a construction site in Paris, kitchen sink from the worksite life base and professional sink purchased from an online platform.

    CLADDING / INSULATION

    Cladding: 90% of the cladding comes from reuse: This is wood from 4 different species coming from the end of stocks of Ile-de-France construction sites.

Sustainable design

  • 31 %
  • The flexible coverings of flexible floors are in the form of carpet tiles and vinyls. This makes it possible to easily replace a damaged slab and to be able to reuse them at the end of their life in this building. All the carpet was installed with a system of double-sided adhesives without TacTiles glue to promote their reusability.

    Custom-made furniture such as counters and low maubles were installed without glue.

    All sanitary equipment and radiators have been installed so that they can be easily removed.

    We wanted to promote the functional economy for our lighting via our partner Signify, but the subsidies available to us for the building investment budget unfortunately did not make this model eligible.

    We have chosen a leasing model for our installed videoconferencing equipment.

    For the finishing work and the fitting out of the building, we were able to use 6.1 tonnes of recycled materials (14%) including:

    - fermacell panels as partitions made from 15 to 20% recycled raw materials

    - paint made from 70% recycled paints

    - decorative furniture veneers made from 100% recycled plastic

    - flexible floors: carpets made from 42% recycled raw materials and vinyl floors from 39% recycled raw materials.

    - Métisse RT insulation

    Not having studied the recyclability of building elements, we can notably cite the metallic steel structures used for sales areas which are reusable because they are modular and recyclable.

    Resilient floor coverings are in the form of carpet tiles and vinyl. This makes it possible to easily replace a damaged slab and to be able to reuse them at the end of their life in this building.

    In addition, the three floors have large open spaces with few partitions, which would facilitate changes in terms of use.

    The building structure is 70% PEFC wood.

    The luminaires supplied by the manufacturer Signify are labeled "circular economy compatible": the accessibility of their spare parts and the scalability of their components make it possible to extend the lifespans of the products. They are designed to last a long time ...

    As for SAS Minimum decorative coverings, they are made locally in Pantin from 100% recycled plastic.

Environmental assessment

    In terms of waste, we were able to avoid having to resort to 19.6 tonnes of new elements through raw finishes, reuse and reuse.

    CF MFA type circularity report by Evea

    The reuse of materials on this project (excluding partitions and reused furniture) made it possible to avoid:

    The emission of 15.7 tonnes eq CO2

    Consumption of 4,031 m3 of water

    The production of 12 tonnes of waste

Reproductibility and Innovation

    Reuse has been integrated into the CCTPs in the form of a dedicated paragraph defining the categories of elements that can be reused (identified on the PRO / DCE guide plans) and the sourcing methods.

    However, we did not create a specific batch or use a Reuse AMO.

    When starting the second work of the building, a more precise list of the elements to be reused was defined by the project manager. The general contractor then carried out sourcing work in their end-of-work stocks in the Ile-de-France region.

    For the missing elements, faced with planning constraints and the importance of re-use in the project, the contracting authority took over the research role.

    For the construction elements, the general contractor provided logistics.

    For the interior fittings, the wood companies took care of recovering the wood and other materials they were going to need.

    Certain furniture and materials have been stored temporarily in our old premises and by our suppliers while waiting to be able to installed.

    The main obstacles that we have identified are:

    - access to information: what can be reused? Where to find these materials? Word of mouth ultimately worked well. Diverse players (deconstruction players, platforms, manufacturers, Ifpeb and SSE players) were kind enough to take the time to search within their sites and networks.

    - the lack of a culture of reuse on the part of those involved in the building industry: it was necessary in site meetings to insist and regularly explain the project and the issues. The circularity assessment which was carried out in parallel and a little in advance of the finalization of the work encouraged us to respect the reuse and reuse objectives which had been defined.

    - insurance issues and the control office which differ according to the interlocutors and the projects: we had to explain our approach to the control office within the framework of a specific meeting so that they can be adapted.

    - access to products at the right time and considerable sourcing time => perseverance was key for the client who played the role of a Reuse AMO.

     

     

     

Social economy

    It was important for Envie to collaborate with other charitable actors. We called on 9 structures of the social and solidarity economy.

    Part of the finishing work was manufactured by integration sites and educational sites, like the glass roof on the ground floor, made up of wood and glass recovered then assembled specifically for the building, or the ground floor counters and kitchen furniture made from wood recovered by the Initiatives Solidaires integration project, which also manufactured the kitchen furniture.

    Household appliances were provided by Envie.

    Some furniture was manufactured by the Emmaus Défi integration site.

    Atelier TAC made shelves, bookcases and a coffee table.

    Finally, two educational projects run by Extramuros and the Fondation Jeunesse Feu Vert made it possible to manufacture reception and workshop counters, benches and planters.

    We have also collaborated within the framework of our supply of reusable furniture with Label Emmaus, Co-recycling and Emmaus Coup de main.

Reasons for participating in the competition(s)

Envie Le Labo is distinguished by a sober and eco-responsible construction and layout:

  • By limiting our functional and aesthetic needs to the essentials (raw finishes) and by prioritizing recovery as much as possible (reuse and recycled), we were able to avoid having to resort to 20 tonnes of new elements, representing 45% of all the materials and objects intended for the interior fittings of this building. It is in particular the elements below, coming from less than 120km, which could be reused and recycled:
    • The exterior cladding, coming from an end of stock of the general contractor. The facades have thus been redesigned using the 4 charcteristics and the dimensions of the elements available;
    • The office-store dividing wall made with 39 washing machine portholes, old windows and oak beams from 1910;
    • A 4-part glass roof made by a work integration site from wood and glass recovered from the Cluny museum;
    • Carpets coming from the end of stock of the company “Interface”;
    • WCs and sanitary devices from the old central school in Chatenay-Malabry (provided by the Réavie and Eiffage Aménagement association) and from the life base;
    • Reused kitchen and professional sinks;
    • Tiles and earthenware from the end of stock of construction sites;
    • Glass partitions formed from reused windows;
    • Second-hand radiators;
    • Bricks from deconstruction in Aubervilliers, found via the Cycle-Up platform;
    • Numerous pieces of furniture recovered via associative networks such as Emmaüs;
    • Doors and handles recovered during deconstruction.

A review of the building's circularity was carried out by the Evea design office, with the support of ADEME Ile-de-France. According to this study:

  • Thanks to the avoidance of materials (materials not discarded at the end of the building's life because they were not used), 6.9 tonnes of new elements were avoided.
  • Through materials not thrown away and used again for a different purpose, 2.3 tonnes of new elements were avoided.
  • Thanks to materials not discarded and used again for their initial use, 10.4 tonnes of new elements were avoided.
  • The rate of recycled raw materials in the building's finishing work perimeter is 14%, or 6.1 tonnes.

In addition, 70% of the building structure is made of PEFC wood.

The building also has a green roof to lower the temperature during heat waves as well as to avoid saturation of the sewage network.

Finally, a local supply has been favored with 35% by mass (i.e. 13.2 tons) of the materials used for the finishing work coming from the Ile-de-France region, and the exclusive recourse to actors of the social and solidarity economy for the manufacture of custom-made circular furniture.

Building candidate in the category

Bâtiments tertiaires / prix de la construction neuve

Bâtiments tertiaires / prix de la construction neuve

Trophées Bâtiments Circulaires

 circular economy
 reuse
 sobriety
 reuse
 wood
 short circuit
 local
 ESS
 Circular Buildings Trophies

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