Case Studies

Collège Paul Eluard

Bonneuil sur Marne, France

Code: CS29

Building before renovation

Original situation

1970-built nonresidential building (secondary school) in the dense city centre of Bonneuil sur Marne (East of Paris).

Renovation approach

Insulation added either as ETICS or as prefabricated filled panels.

Modernisation proposal

Semi prefabricated global retrofit.

Efficiency improvement

Insulation, windows change to triple glazing, air tightness, thermal bridge reduction, installation of comfort ventilation with high performance heat recovery.

PHPP verification sheet after retrofit

TFA existing treated floor area (usable floor space)

8000,0 m2

Space heating Heating demand

14,0 kWh/(m2a)

Heating load

12,0  W/m2

Space cooling Cooling & dehum. demand

– kWh/(m2a)

Cooling load

– W/m2

Frequency of overheating (> 25 °C)

6,0 %

Frequency of excessively high humidity (> 12 g/kg)

0,0 %

Airtightness Pressurization test result n50

1,0 /h

Non-renewable Primary Energy (PE) PE demand

68,0 kWh/(m2a)

Generation of renewable energy (in relation to projected building footprint area)

48,0 kWh/(m2a)

Key facts

Building typology

School | campus | university

Existing treated floor area (usable floor space)

8 000 m2

Building owner

Département du Val de Marne

Consulting outphit partner


Project status

Planning phase

Overall budget

15 500 000 €


Etienne Vekemans
Téléphone: 0145081335