Thermal Analysis du bâtiment
Understand heat losses, usage patterns and key improvement opportunities to help prioritise renovation measures.
SUMETHIC · Building Thermal Performance & Energy
Éric Thiébaut
Building Thermal Studies, Energy Analysis & Home Performance
A pragmatic approach to energy performance: understand the building and its systems, identify opportunities for improvement, and support renovation decisions.
01 · Profile
Connecting Buildings, Occupant Needs and Energy Systems
An INSA Rennes engineering graduate originally specialising in computer systems, I have developed an analytical approach to complex systems. My training in sustainable building and energy now informs my work on thermal analysis, renovation and energy optimisation.
I favour a clear, evidence-based approach: assess existing conditions, make assumptions explicit, compare options and help prioritise decisions according to the building and how it is used.
02 · Areas of Expertise
A Whole-Building View of Energy Performance
Heating and Domestic Hot Water
Assess system operation, how systems interact with the building fabric, and opportunities for optimisation.
Summer Comfort and Bioclimatic Design
Consider solar gains, ventilation, thermal mass and passive measures to reduce overheating.
Energy Systems et régulation
Model, instrument and understand systems combining heat generation, storage, hydraulics and control.
03 · Services
Technical Studies and Decision Support
Services focused on analysis, understanding building systems and prioritising improvement works.
Thermal Analysis de l’habitat
Identify key thermal weaknesses, understand usage patterns and highlight areas for further investigation.
Energy Renovation Advice
Compare renovation options and help prioritise measures while considering the building as a whole.
Heating and Domestic Hot Water System Analysis
Review system operation, controls and the interactions between equipment and the building fabric.
Digital Self-Assessment Tools
Develop web tools that guide information gathering, structure an initial assessment and make technical topics more accessible.
Each assignment is scoped in advance according to the client’s needs. The services described here cover analysis, technical studies and advice; they do not in themselves constitute a certified regulatory audit, a RE2020 compliance study, project management or site supervision.
04 · Projects and Studies
Practical Projects at the Intersection of Buildings and Energy
Thermal Assessment and Decision-Support Tools
- Thermal analysis of individual homes and identification of potential improvements.
- Development of thermic.sumethic.fr, a thermal self-assessment platform designed to help structure an initial analysis.
- Development of optimhome.sumethic.fr, a tool to help users understand and optimise building systems.
Thermal Storage and Solar Energy
- Study of a district heating network using seasonal storage of summer solar heat as part of a final-year project.
- Study of thermal storage concepts, including an experimental system inspired by the Jean Pain biomass heap approach.
- Study of a solar-assisted heat pump concept.
Renovation and Low-Energy Systems
- Exploration of bio-based insulation solutions, particularly straw, and clay-, lime- and straw-based renders.
- Work on ventilation, earth-air heat exchangers, hydronic circuits, low-temperature heating and bioclimatic design.
- Design of home-automation instrumentation and controls to monitor and manage systems.
05 · Skills
Technical and Professional Skills
Building Fabric
Thermal Analysis de l’habitat, rénovation énergétique, principes bioclimatiques, confort d’été, isolation biosourcée, matériaux anciens et enduits terre/chaux.
Energy and Building Systems
Heating and domestic hot water, hydronic circuits, solar thermal, heat storage, ventilation, controls and system optimisation.
Analysis and Tools
Modelling, instrumentation, data analysis, development of web-based self-assessment tools, project management and Gantt charts.
Transferable Skills
Systems thinking, complex problem-solving, documentation, communication, knowledge sharing and support.
06 · Education and Background
A Dual Technical Background
Sustainable Building and Energy Project Management
CNCP / ASDER training. Study project: a heating network with seasonal storage of summer solar heat.
Engineering Degree in Computer Science
INSA Rennes · Systems architecture. Extensive experience in design, analysis and technical problem-solving.
Training and Knowledge Sharing
Training adults in methods and tools for high-performance building design and the energy transition.
Energy Transition and Local Initiatives
Community Involvement associatifs dans la transition, participation à des chantiers et animation d’ateliers de réparation.
Discuss Your Project
A technical study or building-thermal question?
Describe the building, the issues observed and the questions to resolve so that an appropriate scope of work can be defined.