- Building Type : Other building
- Construction Year : 1880
- Delivery year : 2021
- Address 1 - street : 20 Boulevard Lyautey 91490 MILLY-LA-FORET, France
- Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
- Net Floor Area : 185 m2
- Construction/refurbishment cost : 525 000 €
- Cost/m2 : 2837.84 €/m2
Primary energy need :
(Calculation method : RT existant )
The project is located in the heart of Milly-la-Forêt, on the plot of an old farm transformed into the Maison du Parc naturel régional du Gâtinais francais. The barn is positioned in a constraining situation: adjacent to the separating limits, mainly oriented to the north and surrounded by different levels of base.
The project proposes a rehabilitation and an extension of the barn by preserving the characteristics of the rural architecture of the French Gâtinais. The construction favors the use of bio-sourced materials and the extension is treated in a contemporary way by taking inspiration from the characteristic elements of the vernacular architecture, in particular the beehives and dryers. The project is presented as follows:
- Three levels are organized in the barn for its activities with a low first floor in half level and an interior structure in wood. The north facade is modified: the barn's carriage door is replaced by a wooden glazed frame and a large horizontal bay is created under the eaves of the roof. The existing roof is preserved, only pierced by flush roof windows on the southern slope.
- An extension is created on the west façade to accommodate a meeting room. This cantilevered extension signals the commitment of the French Gâtinais Regional Nature Park to sustainable and biosourced architecture. It presents a volume with a double slope roof at the R+2 level, suspended from the existing gable. It consists of a wood frame, a roof of wood shingles, wood cladding, interior insulation in plant fibers and wood joinery high performance protected by external blinds. A horizontal bay is created under the extension to light individual offices; it accompanies and emphasizes the extension of the cantilevered structure.
The project combines modern techniques with traditional know-how :
- The stone masonry and lime renderings are preserved. The interior wall finishes are also made of lime plaster.
- The use of hemp concrete on old masonry ensures a very good thermal comfort while promoting local know-how and short channels.
- The existing framework is preserved and the new frame is designed around the existing trusses. Entirely modeled in 3D, the framework was digitally shaped and assembled in one month.
- A flexible rainwater collection tank is integrated into the lower level for sanitary purposes.
- Electric vehicle charging stations are located under the extension.
- The Cep energy performance objective is set at 80 kWhep/m².year. The summer/winter comfort levels are optimized (inertia, cold wall sensation, phase shift...).
- The furniture is made from reused wood by an integration company.
All of these recommendations contribute to limiting the ecological footprint of the construction, to thermal comfort and to the qualitative atmosphere of the project.
abdpa / Daniele Rocco
Thermal consultancy agencyLM Ingenieurs
Other consultancy agencyC-TEK
CompanySeve mobilier Matthieu Renard - Directeur - 07 87 03 14 22 Reuse and integration furniture
Reuse : same function or different function
- Structural works
- Structural framework
- Indoor joineries
|Categories||Avoided CO2 (kg)||Avoided water consumption (m3)||Avoided waste (kg)|
|Exterior fittings / Locksmithing - Metalwork||0||0||0|
|Roofing / Exterior fittings||0||0||0|
|Climatic engineering equipment||0||0||0|
|Floor and wall coverings||0||0||0|
|Locksmithing - metalwork||0||0||0|
|TOTAL||Avoided CO2 (kg)||Avoided water consumption (m3)||Avoided waste (kg)|
|Km in a small car||Nb of rectangular bathtubs||nb of years of household waste of a French person|
|Equivalent trip Paris- Nice||2486,0|
The reuse operation has saved the equivalent of 2187429 kilometers traveled by a small car, or 2486 Paris-Nice trips, 12337 rectangular bathtubs filled with water and 707 years of household waste of a French person.