The demo case building in Pérenchies, France is a large social housing that hosts people from variable group ages. The tenants are low-income citizens and mostly unemployed. Some of them are young people with children, and others are elderly. Lille has a marine west coast climate with minimum winter temperatures at –5oC and maximum summer temperatures reaching at 32oC.

The social housing was constructed in 1967 and about 30 years after, in 1999, double-glazed windows were installed. The building has four storeys and a ground floor, and 30 dwellings in total. The roof is flat and uninsulated, and a pitched roof is planned to be installed under the RE-SKIN project. All the construction and installation works will last for two years, and specifically from 16/12/24 to 03/12/26.

A precise and accurate photographic survey of the interior rooms was carried out to provide an overview of the interior spaces in a 3D tool. Also, two sensors have been installed in the building to measure the temperature and humidity of the rooms. The construction and installation works will last for four months, with the installation of the new RE-SKIN roofing in July 2024, and further works execution by the end of October 2024.

Location: 10 Rue d’artois, 59840 Pérenchies

Owner: Vilogia

Construction/retrofit date: 1967, 1999

Total floor area: 2.045 m2

Total height: 16 m

Climate: Continental

Partner: Marine west coast climate

Contact Person:
Julien Holgard, julien.holgard@vilogia.fr

State of the building before the RE-SKIN renovation

Facade: PVC double-glazed windows

Heating: There is underfloor heating supplied by a collective gas boiler. The gas boiler is in a separate space and has the capacity to heat two buildings warming 70 dwellings in total.

`Hot water: The centralised gas boiler ensures the production of domestic hot water needs of each floor.

Cooling: There is no A/C.

Electricity: Currently, there is no available data on electricity consumption, but the total energy consumption per year is 219 KWh/m², including gas.

Key challenges

  • The renovation work must decrease the on-site activities to limit disturbance on occupants of the social housing.
  • Due to the geometry constrains of the roof, custom components are needed to the optimisation of the BIPVT performance.

Architectural plan

Results

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