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Réglementation thermique & Conformité

Calculs thermiques
RE2020 & RT2012

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Thermal regulations determine building permit approval, works acceptance and the real performance of your building. A well-conducted study from the design stage prevents costly remediation and guarantees a compliant, comfortable, energy-efficient building.

Architects reviewing RE2020 thermal plans

RE2020: the new environmental regulation

In force since 1 January 2022, RE2020 sets ambitious targets across three areas:

  • Building fabric energy efficiency (Bbio) — optimisation independent of systems
  • Primary energy consumption (Cep) — progressively strengthened thresholds to 2031
  • Carbon impact (Ic construction + Ic energy) — full life cycle carbon footprint

Our thermal study services

  • RE2020 thermal study — Bbio, Cep, DH, Ic energy and Ic construction; compliance certificates at planning permission and works acceptance
  • RT2012 thermal study — for projects currently in planning and element-by-element renovations
  • Comparative solution analysis — techno-economic comparison of construction scenarios and equipment
  • Thermal site monitoring — verification that implementation matches calculation assumptions
Engineer working on thermal simulation software
Thermal simulation — building energy modelling using RE2020-certified software

Optimisation at design stage

Intervening at sketch phase rather than at permit submission allows action on the most effective levers: building orientation, compactness, solar shading, insulation material selection, ventilation systems.

💡 Intervening at design stage rather than at permit submission typically saves 15–25% on compliance costs.

Certified software and methods

  • DesignBuilder / EnergyPlus — world-leading dynamic thermal simulation
  • Pleiades (Izuba Énergies) — RE2020-certified, integrating LCA and STD in a single tool
  • Certified Th-BCE 2020 software — for RE2020 regulatory certificates

Who does Woodrow Consultants work with?

  • Property developers — residential buildings, managed residences, mixed-use schemes
  • Public clients — schools, sports facilities, offices, hospitals
  • Architects and project managers — technical assistance on thermal aspects
  • Individual house builders — product ranges and bespoke projects

Un projet de construction ou de rénovation ?

Nous intervenons dès la phase esquisse pour optimiser la performance thermique et produire vos attestations réglementaires.

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