RE2020 Thermal Study
Cergy, Île-de-France

RE2020 thermal engineering consultancy in Cergy: Bbio / Cep / Ic calculation, dynamic thermal simulation (STD), summer comfort and ACV carbon assessment.

Updated 16 July 2026

Cergy · Île-de-France

RE2020 Thermal Study in Cergy.

In Cergy, the stock inherited from the new town represents a considerable and homogeneous energy renovation potential: buildings from the 1970s and 1980s, often of the same construction generation, poorly insulated, with ageing systems. This homogeneity is an advantage, because it allows the assessment to be industrialised and the reasoning to proceed by families of buildings rather than case by case, which sharply reduces the study cost at the scale of an estate. We carry out the RE2020 renovation calculation and dynamic simulation on this portfolio logic.

Summer comfort is the sticking point of the RE2020 in Cergy: on exposed façades, the degree-hours (DH) threshold is quickly exceeded, all the more so in the south of France. Dynamic thermal simulation arbitrates between thermal inertia, solar shading and natural ventilation before the building envelope is fixed.

Our services

RE2020 Thermal Study in Cergy: what we do.

RE2020 regulatory thermal study (TH-BCE)

Dynamic thermal simulation (STD)

Summer comfort (degree-hours DH)

Carbon life-cycle assessment (ACV)

Bbio / completion certificates

Coverage area

RE2020 Thermal Study in Cergy and the surrounding area.

Our teams travel from Aix-en-Provence to Cergy and the neighbouring municipalities of the 95 department.

Cergy
Pontoise
Osny
Éragny
Jouy-le-Moutier
Vauréal
Saint-Ouen-l'Aumône

FAQ

FAQ, re2020 thermal study in Cergy

Summer comfort is one of the sticking points of the RE2020, particularly in the south of France: the degree-hours (DH) indicator is decisive there and the upper threshold (1,250 DH) is quickly reached without solar shading, thermal inertia and night-time ventilation. We verify it through dynamic thermal simulation (STD) from the design stage in Cergy to avoid non-compliance at the end of the project.
Yes: RE2020 regulatory calculation (Bbio, Cep, Cep,nr, Ic construction / Ic énergie carbon indicators via dynamic ACV) using the TH-BCE engine, Bbio certificate to be filed with the planning permission and compliance certificate at completion. We cover residential and commercial buildings in Cergy and its department.

A project in Cergy? Let's talk.

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