The shade house of Les Canaux

New Construction

  • Building Type : Other building
  • Construction Year : 2019
  • Delivery year : 2019
  • Address 1 - street : 6 quai de la seine 75019 PARIS, France
  • Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.

  • Net Floor Area : 125 m2
  • Construction/refurbishment cost : 60 000 €
  • Number of none : 1 none
  • Cost/m2 : 480 €/m2
  • Primary energy need
    (Calculation method : )
Energy consumption
Economical buildingBuilding
< 50A
51 à 90B
91 à 150C
151 à 230D
231 à 330E
331 à 450F
> 450G
Energy-intensive building

An architectural and structural manifestation of three successes, this project demonstrates the strength of a collective, the strengths of the circular economy and a practical application of the international Fab City movement. It was created thanks to the support of Icade Promotion, REI Habitat, Quartus and SUEZ. Following a call for projects published by the association Les Canaux: La Maison des Économies Solidaires et Innovantes, the Re-Store collective was selected to create this shade house in reused materials. The team had two months to complete the project, which aimed to animate the wharf during the summer months before being dismantled in September. The structure was delivered on time, 5 minutes before its inauguration, and remained intact until its dismantling. It was a real challenge against the clock.

With around 8.4 tonnes of recovered and reused wood, constituting 90% of the Ombrière, the project was a real success in terms of the use of recovered materials.

Sustainable development approach of the project owner

The challenge offered by the constraint of the Canals goes beyond the simple architectural project of a terrace.
This is a challenge for all those involved in construction, whether they are architects, engineers, companies or project managers: reducing the use of new materials and thus of our limited resources, and increase the reuse of what is considered waste.

The shade house commissioned by Les Canaux was intended to protect the organisation's activities from the summer sun, with notable requirements: the materials used had to be almost exclusively reused or recycled, and the project, from supply to design through manufacturing had 2 months to be set up.

The Re-Store collective took up these challenges by channeling the various expertise of its members, from design with WAO Architecture (coordination), R-Use, Studio Pourquoi Pas and EMA architecture, to production with Super Cube (lead company) and Remake. The project was therefore designed, produced and supplied by different actors. The collective was able to build the structure thanks to the generous space offered by the Orfèvrerie de Saint-Denis, where it was also able to store its materials, prototype and experiment with solutions. This third space was created by three partners: the real estate developer Quartus housed the collective; REI Habitat / REMAKE set up a carpentry workshop there, with machines and tools for traditional crafts, and WoMa managed the space while providing its community and digital skills.

Architectural description

The shape of the structure reflects the undulating movements of the canal with pieces of wood in sinuous shapes. Its roof, designed in reference to the hull of a boat, compliments these movements, and rises in its center to mark the entrance to the house of the Canals. This roof was designed as a wooden plank storage rack with wooden elements cut in the shape of a comb. This makes it possible to vary the inclination of the skylights which will land there, and to adapt to the dimensional heterogeneity of the sun screens. Indeed, the solar study and the parameterization of the model enabled the design of louvers whose orientation takes into account the course of the sun to maximize the shadows cast. The tubs play a double role: that of vegetating the terrace and of ballasting the structure. They were designed from reclaimed wood from the Arts Reserve and the Re-store stock. They were carried out by the collective with the help of Urban Vergers who carried out its revegetation.

See more details about this project

Photo credit

Aurelien Chen


Construction Manager


    M. Minh Man NGUYEN, Clément Duroselle, contact[a], 06 68 99 56 65


    Other consultancy agency


    Mathieu Paradas, mathie[a]

    Reuse project management


    Studio Pourquoi Pas

    Renald Prevost, renald.prevost[a]

    Construction company

    Force Pure

    Arthur Nouricier, contact[a]


Contracting method

General Contractor

Type of market



    • No heating system
    • No domestic hot water system
    • No cooling system
    • Natural ventilation
    • Double flow
    • No renewable energy systems

Urban environment

  • 125,00 m2
  • The house shade is located in front of the facade of the association Les Canaux, at a crossroads of diferent flows, next to the rotunda and the Stalingrad tube station in the 19th district.

Construction and exploitation costs

  • 60 000,00

Reuse : same function or different function

    • Structural framework
    • Roofing
    • Landscaping


    For the structure, 150 planks were sourced; they were used for a temporary floor for the Mada scaffolder. This represents 9 m3 of wood, which has been almost entirely used.

    The dimensions of the planks being of section 10x12cm and of a length of 5 m defined the structural form in order to be able to reconstitute the spans and the heights defined by the specifications of the Canaux.

    The shade is made up of 14 gantries of varying heights but with a number of similar parts in order to optimize the flow.


    The roof was designed as a storage rack for wooden planks.

    The Réavie association found a solution by sourcing skeleton cellar doors. We thus recovered about sixty of them that we dismantled and unmounted. The elements were very regular. They constitute ⅔ of the roof having a length between 195 and 198 cm. Upper litters were filled through deposit from Re-Store inventory. Stock which was constituted largely by the falls of the carpenter Méha, supplemented by other sources like that of Actlab / Bellastock.

    Sun blocker

    The sunshades were designed by the design studio Pourquoi Pas, which is also the winner of the call for projects on the development of the kiosks, and with the participation of R-Use. The design is a reminder of the ripples of the canal.

    The sunshades were made from office trays, one of the most recurring waste. Thus Valdelia, an eco-organization, provided the elements that served as the basis. Being made of chipboard, the appearance of the edges makes it difficult to exploit. It is from this observation that the designers transformed the edges with color.


    The tubs play a double role: that of vegetating the terrace and of ballasting the structure. They were designed from reclaimed wood from the Arts Reserve and Re-store stock. They were carried out by the collective with the help of Vergers Urbains who carried out the revegetation.

    Digital technology to optimize the project, its production and facilitate the circular approach

    The project was parametrically designed to optimize the orientation of the slats and maximize the shadows. Thus a solar study was made so that the orientations of the blades follow the course of the sun.

    The parameterization of the project provided by Jim Rhoné also allowed flexibility in the elements used, so they could be modified until the last moment. Indeed, the wood for the roof arrived 4 days before the opening, it was then possible to integrate their dimensions into the model instantly.

    The workflow was determined to allow the output of the manufacturing plans for the interface between the structure and the wood elements, called “Combs”. They make it possible to use the geometry of the pieces of wood, the angles to optimize the shadow surface and also the singular positioning in space of each element being the discretization of a ruled surface.

    They are all different and solve the geometric complexity of the project.

    Sources for the different deposits:

    • Valdelia for office trays
    • Actlab / Bellastock for wooden planks
    • Mada for planks
    • La Réserve des Arts for items that served as the basis for the bins
    • Réavie for roof elements
    • Re-store and more particularly remake to complete the needs
    • The right place for occasional contributions

Environmental assessment

    On this project, the reuse of materials made it possible to avoid:

    - The emission of 8.5 tonnes eqCO2

    - The use of 6443 m3 of water

    - The production of 10 tonnes of waste

    The impact calculation was carried out using environmental data from the INIES database.

Reasons for participating in the competition(s)

Le projet étant éphémère il a été entièrement démonté.
Une partie des éléments servent pour d’autre projet comme certains bacs qui sont désormais sur les kiosques aménagés par les canaux. Les éléments de Re-Store y sont retournés pour reconstituer les stocks du collectif à l’Orfevrerie. Les autres éléments de toiture serviront à un autre projet que Réavie mettra en oeuvre offrant donc une troisième vie à ces matériaux.

La structure doit être remontée au printemps pour un projet de REI Habitat et servir de maison du projet pour la rénovation du musée de la liberté. Aucun élément du projet n’a été jeté.

Building candidate in the category

Users’ Choice

Users’ Choice

Green Solutions Awards 2022-2023
 Shade shelter reuse canals wood Trophées Batiments Circulaires circular economy

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Author of the page

minh man nguyen

Associé fondateur

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