RE2020 is the French building regulation for new construction. It sets requirements on bioclimatic need (Bbio), primary energy use (Cep), summer comfort and embodied carbon, so the thermal study belongs at design stage.
We model the project from the drawings and specifications, calculate the regulatory indicators and test construction variants before decisions are locked in.
Orientation, compactness, glazing ratio, solar shading, materials and systems: choices made early cost little and prevent expensive fixes once the shell is up.
We issue the attestations required at the project milestones and flag any divergence between the design studied and what is actually built.
Ideally before the building permit (permis de construire) is filed, while the plans can still change at no cost.
Any change of system, window or insulation changes the results. Tell us and we recalculate so compliance is maintained.
