Reconstruction of a farmhouse in shops, services and housing in Forges

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Last modified by the author on 24/06/2014 - 15:25

New Construction

  • Building Type : Collective housing < 50m
  • Construction Year : 2011
  • Delivery year : 2011
  • Address 1 - street : 19 route de Mirecourt 88390 LES FORGES, France
  • Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.

  • Net Floor Area : 800 m2
  • Construction/refurbishment cost : 2 120 000 €
  • Number of Dwelling : 4 Dwelling
  • Cost/m2 : 2650 €/m2
  • Primary energy need
    54.7 kWhep/m2.an
    (Calculation method : RT 2005 )
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
  • Self-declaration of BBC approach
  • Prebat 2009 prizewinner

The project was initially a major renovation of an old farmhouse in the Vosges region, located in the historical center of the city. But the supervising office’s refusal led to the total demolition of the building and its reconstruction in its original form.

The general design and the façade of the building have been preserved in order to fit 4 housings, an agricultural and food products’ shop and a local for nurses and veterinarians.

After demolition, the cornerstones, the vault of the carriage gateway and window frames were refited. Floor slabs and walls’ rubble stones were reused.

Sustainable development approach of the project owner

- Self-declaration of BBC approach
- Prebat 2009 prizewinner

Low environnemental impact building site:
- Prefabrication of the wooden structure
- Charter of green building site, dry toilets

Business waste:
- Waste sorting, composting, shelter for waste containers

Acoustic comfort
- Sound insulation: walls: 14.7 cm cellulose + 4cm wood / Floors: rigid wood wool
- Sount attenuators (ventilation ducts)

Visual comfort
- External blinds (South + West)
- Skylights

Architectural description

The project was initially a major renovation of an old farmhouse from the Vosges in the commune centre. But the supervising office’s refusal led to the total demolition of the building and its reconstruction in its original form.

The general design and the façade of the building have been preserved in order to fit 4 housings, an agricultural and food products’ shop and a local for nurses and veterinarians.
After demolition, the cornerstones, the vault of the carriage gateway and window frames were refited. Floor slabs and walls’ rubble stones were reused.

Green Spaces:
Green spaces, flowery meadow, fruit trees

Orientation: North-South-East-West (South frontage mostly glazed).

See more details about this project

 http://www.lqe.fr/home/upload/fiches/FicheFermeForgeronneLesForges.pdf

Stakeholders

    Contractor

    Commune Les Forges



    Designer

    Ascendense Architecture




    Thermal consultancy agency

    Permanergie



    Company

    FG construction



Type of market

Global performance contract

Energy consumption

  • 54,70 kWhep/m2.an
  • 169,00 kWhep/m2.an
  • RT 2005

Envelope performance

    Materials
    - Structure: Monomur, wood
    - Insulation: Monomur bricks (37cm), wood wool (4cm), cellulose wadding (12cm)
    - Floors: prefinished engineered hardwood floor, cement and woodchips screed, linoleum, wood floor, porcelain tiles
    - Frontage: rubble in existing reused sandstone, lime plaster on reeds, wall paneling in zinc
    - Windows and doors: Wood.
    - Insulation: internal, external, distributed
    - Glazing: double, triple (North)
    - Sun protections: external blinds and wooden shutters

Systems

    • Wood boiler
    • Other hot water system
    • No cooling system
    • Double flow heat exchanger
    • Wood boiler

    - Heating: wood/pellets boiler, heat recovery provided by the refrigeration unit
    - ECS: wood/pellets boiler
    - Thermal bridges: thorough study (stones from the previous building were reused for the frame)

Smart Building

    Technical room accessible from outside

Urban environment

    "Town center" for the inhabitants (meeting spot, pedestrian crossings)

Construction and exploitation costs

  • 212 249
  • 2 120 000
  • 826 188

Water management

    - Infiltration of rainwater by landscaped ditches
    - Green roof
    - Flow restrictor and wells

Indoor Air quality

    - VOC free material
    - Ventilation: single flow (shop) double flow (offices and housing)

GHG emissions

  • 1,00 KgCO2/m2/an

Life Cycle Analysis

    Wood; wood wool; cellulose wadding; lime; reeds; porcelain stoneware

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