Contractor

Name : LAO SCOP

Contact : info[a]lao-scop.com

 http://www.lao-scop.com

Construction Manager

Name : LAO SCOP

Contact : mobilier[a]lao-scop.com

 http://www.lao-scop.com

Stakeholders

Function : Designer

Ludique Architecture

archi[a]lao-scop.com

 http://www.lao-scop.com


Project management and internal participation in the construction site via the association ICI

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Function : Construction company

LAO SCOP

mobilier[a]lao-scop.com

 http://www.lao-scop.com


Builder and manufacturer. Carpenters, cabinetmakers and boilermakers. Punctual training in carpentry and wood frame.

Type of market

Not applicable

Other type of market

Private market

Allocation of works contracts

Build and sell construction

Energy consumption

• Primary energy need : 49,00 kWhep/m².an

Calculation method : Other

Systems

Heating system :
• Individual electric boiler
• Electric radiator
Hot water system :
• Individual electric boiler
Cooling system :
• No cooling system
Ventilation system :
• humidity sensitive Air Handling Unit (hygro A
Renewable systems :
• No renewable energy systems

Urban environment

In an industrial zone dedicated to cinema trades, the interior building is not directly affected by integration into the district.

Indirectly, the building is integrated by using several materials from the dumpsters of the film sets. As a polluting actor with a high production of waste linked to decorations, we use their scraps and surpluses daily and they regularly call on us before sending them for recovery.

Construction and exploitation costs

• Total cost of the building : 15 000 €

Circular economy strategy

Phase in which reuse has been integrated : Sketch study

Type of circular economy strategy implemented :
• Maximization of the number of impacted batches
• Maximization of quantities on targeted products
• Maximization of the carbon gain
• Maximization of the mass of waste avoided
Type of circular economy strategy implemented :

Internal strategy: self-training, skills development re-use in terms of implementation, gleaning, storage and design

Integration of reuse into the written contract documents : Reuse in base

Validation protocol for reused materials : No

Deposit validation form : No

Reuse : same function or different function

Batches concerned by reuse :
• Structural works
• Structural framework
• Facades
• Locksmithing-Metalwork
• Indoor joineries
• Outdoor joineries
• Floorings
• Partitions
• Suspended ceilings
• Plumbing

For each batch : Reused Materials / Products / Equipments :

• Half of the wooden frame comes from the deconstruction of an ephemeral pavilion at the Palace of Versailles (145 linear meters of section 0.049 x 0.18m) - 710kg
• All of the exterior cladding is reused. The sipo uprights and the base in exotic wood veneered doors come from the renovation of the UNESCO Paris building, a building designed by Jean Prouvé and Bernard Zehrfuss. Surprising detail: the doors are filled with sand, which can be a bulletproof device.
  • 8 sipo veneered doors sand filling (8 doors 2.150 x 0.82 x 0.042m) - 760kg
  • Sipo uprights (130 linear meters of section 0.052 x 0.063m) - 276kg
  • Melamine panels (50 ² variable thicknesses) - 172kg
  • Mirrors (5m²) 168kg
• The 10 glazed openings, aluminum double glazing, are recovered from a demolition in Paris XII (10 openings dimensions 2,680 x 1.22m) - 976kg
• The floor coverings come from film sets near the workshop in Saint-Denis (26m² of linoleum and 4m² of cement tiles) - 216kg
• Steel industrial staircase from a demolition near a warehouse in Saint-Denis - 186kg
• The entire layout is also reused or second-hand (ground floor benches, ground floor wall units, sofa, shelves, valchromat table top, 60x60 tube table base, 10 chairs, oven appliances + fridge) - 830kg

 

The total reaches 4.4 tonnes of material saved from the dumpster, and therefore as much material that did not need to be produced.

Reused materials rate :

• Implementation according to DTU for wooden frame, adapted to the dimensions of the reused sections.
• Installation of exterior joinery outside DTU: waterproofing already provided indoors.
• Original facade designed and produced outside DTU - significant degree of adaptation due to the nature of the materials (doors filled with sand).

Logistics

Rehabilitation and reconditioning operations (if project concerned by a cleaning/demolition stage) : No

Storage of materials from external supply :
• On site, on a dedicated area in a covered location

Insurance

Consultation of the technical controller : No

Environmental assessment

Impacts avoided : water, waste, CO2 :

 

Categories	CO2 avoided (kg)	Water consumption avoided (m3)	Waste avoided (kg)
framework	400	6.4	3464
Lightings	72.4	0.7	137
facades	495	1424	436
Sanitation facilities	125	1.2	93
Exterior carpentry	3664	46	2235
Interior joinery	1910	1261
Furniture	1426	648	1820
floor coverings	317.5	11	191
Locksmithing - metalwork	557	4	274
TOTAL	8966	880	6793

 

The reuse operation saved the equivalent of 71,727 kilometers traveled by a small car, or 82 Paris-Nice journeys, 5,869 rectangular bathtubs filled with water and 14 years of household waste for a Frenchman.

More details on the avoided impacts :

Materials	Categories	Quantities	Functional units	CO2 avoided (kg)	Water consumption avoided (kg)	Waste avoided (kg)
Wood frame	framework	145	ml	400	6.4	3464
Aluminum exterior carpentry	Exterior carpentry	33	m²	3292	42	2089.5
Exterior door - wood / aluminum	Interior joinery	8	U	1910	22	1261
Interior door - wood	Interior joinery	8	U	0	0	0
Wood siding	facades	m²	495	142	436
Mirror	Furniture	5	m²	71	0.2	53
Metal railings	Locksmithing - metalwork	6	ml	557	4	274
Closures and solar protections in PVC (blinds, hinged and sliding shutters, curtains)	Exterior carpentry	14	m²	372	4	146
PVC floors	floor coverings	25.3	m²	247	11	157
Terracotta tiles / tomettes	floor coverings	4.1	m²	70	0.3	34
Workplan	Furniture	3	U	52	0.1	46
Bookcase / wooden shelf	1	U	42	0.1	37
Metal cabinet	Furniture	4	U	630	13	1141
Lighting - LED Strip	Lightings	4	U	72	0.7	137
Chairs	Furniture	10	U	234	631	98
RIE technical equipment - Dishwasher	Furniture	1	U	133	1.3	215
Technical equipment of RIE - Refrigerator	Furniture	1	U	264	3	230
Wash basin	Sanitation facilities	2	U	125	1.2	93

Economic assessment

• Total cost of reuse : 1 000 €

Reuse quantified in the companies' offers? : No

Purchasing process for reused materials :
• Purchase by the contracting authority from a reuse platform
• Purchase by the company from a reuse platform
• Others
Purchasing process for reused materials :

- Direct via the Plaine Commune associative and SSE networks;
- Via the REAVIE, MOBIUS, MUTO, La Réserve des Arts reuse platforms;
- Via general second-hand networks.

More details on the economic balance :

Assessment of material construction costs at 227€/m² (materials without labour) thanks to reuse against an equivalence of approximately 800€/m² (materials without labour) for an equivalent new construction in terms of quality of materials.

New business model and financial balance :

Economic model based on reuse: the possibility of a long design + gleaning time allows a rapid EXE + construction phase (not dependent on delivery times, the materials for reuse are already on site)

Communication

Communication on the process : Yes

If so, please specify :

Publication of a press kit, publication on our Instagram page gathering 2,500 followers.

Project visit : Yes

Social economy

Social economy and professional integration :

The LAO cooperative is an integral part of the ESS, in accordance with its horizontal functioning and its social commitment. Internal self-construction was an opportunity to self-train employees and a significant time of conviviality around the unifying act of building.

Circular design

Responsible consumption :

Reuse was integrated from the ESQ phase and a few months of monitoring allowed us to gather the materials. The entire layout is also reused or second-hand.

Functionality economy :

The temporary occupation of the site involved the design of a completely removable building with a view to moving.

The employees (current users) have all been involved in the construction of the building: this involvement ensures respect for the work and fights against premature degradation.

Eco-design :

Building designed to:

• Maximize reuse;
• Serve the uses of the company as closely as possible (Assistance to project management);
• Be fully removable for moving.

Sustainable supply :

The new materials purchased are all biosourced. Wood wool insulation (CF) and French timber from sustainably managed forests (PEFC).

Recycling :

Design so as not to produce waste: adaptive layouts and use of scraps from the workshop.

Additional information (PDF documents)

Websites

 https://www.lao-scop.com/projets/atelier-abprod-lao