Thermal modelling report
A thermal modelling report is the technical record of a building simulation: why the model was built, how it represents the design, which inputs and scenarios were used, how it was checked and what the results do and do not support.
A thermal modelling report is the technical record of a building simulation: why the model was built, how it represents the design, which inputs and scenarios were used, how it was checked and what the results do and do not support.
What this report needs to prove.
The page targets “thermal modelling report” while keeping the report-template query on its own page.
Model purpose first
An energy model, load model, comfort model and compliance model can use different inputs and rules. The report must state its purpose before presenting results.
QA is part of the deliverable
Model version, zoning, area checks, envelope checks, profiles, system logic, energy balance and anomalous results should be reviewed and recorded.
Results need boundaries
Every conclusion should identify the scenario, design revision, weather basis, exclusions, uncertainty and decisions that the result can support.
How to prepare the assessment and report.
Use controlled source information, keep each modelling decision traceable and obtain competent-person review before issue.
Write the modelling brief
Define the decision, output metrics, project stage, model scope, software, assessment method and approval route.
Collect controlled inputs
Use revisioned geometry, fabric, glazing, shading, occupancy, loads, systems, controls, weather and schedules.
Build and QA the model
Check areas, volumes, zoning, adjacencies, constructions, profiles, plant logic, unmet loads and energy balance.
Run base and sensitivity cases
Keep scenario names, changed inputs and result exports controlled so the report can explain cause and effect.
Report decisions and limits
Present the metrics needed for the brief, explain anomalies and state where survey, design or operational uncertainty remains.
Information to gather before you start.
Missing inputs should remain visible as review items. They should not be replaced with convenient assumptions without approval.
| Input group | Source information | Why it matters |
|---|---|---|
| Modelling brief | Purpose, project stage, metrics, scenarios, software and acceptance criteria | Defines what the model must answer |
| Building geometry | Revisioned model, areas, volumes, orientation, zoning and adjacency | Defines the simulated form |
| Envelope | Constructions, thermal bridges where applicable, glazing, shading and infiltration | Defines fabric performance |
| Internal conditions | Occupancy, equipment, lighting, setpoints and schedules | Defines demand and comfort drivers |
| Systems and controls | HVAC, ventilation, efficiencies, capacities, setpoints and sequences | Defines system response |
| Weather and outputs | Declared files, simulation periods, metrics, QA logs and result exports | Makes the study reproducible |
What the issued report should contain.
Use the separate template page when the search task is to find the report layout rather than understand the assessment.
| Section | Required coverage |
|---|---|
| Executive summary | Study purpose, model status, headline findings, design decisions and limitations. |
| Modelling brief and scope | Project stage, questions, metrics, assessment methods, software and excluded items. |
| Model description | Geometry, zoning, envelope, glazing, shading, gains, occupancy, ventilation, systems and controls. |
| Quality assurance | Source revisions, area and volume checks, schedules, energy balance, warnings, anomalies and reviewer checks. |
| Scenarios and results | Base case, alternatives, weather cases, sensitivities, graphs, tables and decision commentary. |
| Conclusions and model limitations | Supported decisions, unresolved inputs, uncertainty, next-stage actions and sign-off. |
Standards and guidance to check.
The project team must confirm the current edition, jurisdiction, contractual requirements and authorised access to each publication.
- CIBSE AM11 Building Performance ModellingAM11 covers modelling QA, energy, thermal environment, ventilation, lighting and plant modelling.
- CIBSE Building Simulation GroupThe CIBSE group provides current building-simulation knowledge and industry activity.
Prepare the report in Adelphos Chat.
Collect the inputs, identify missing evidence and build the report structure now. Report Studio templates are being prepared for release.
Thermal modelling report questions
What is included in a thermal modelling report?
A good report includes the modelling brief, model description, input sources, assumptions, QA checks, scenarios, results, sensitivity, limitations and sign-off.
Is a thermal modelling report the same as an energy report?
Not always. Thermal models can address loads, comfort, overheating, ventilation, energy or controls. The report title and scope should match the decision being assessed.
How detailed should the model be?
It should be detailed enough to answer the agreed question without adding unsupported complexity. The report should explain the chosen level of detail and its limitations.
Can Report Studio read simulation outputs?
Report Studio is being prepared to assemble controlled model inputs, calculation outputs and narrative into reviewable report sections. The modeller still owns the simulation and conclusions.
Continue with the evidence.
Move between the technical guide, the report structure and the calculation tools without mixing their search intent.
Adelphos structures declared evidence and report content. A competent person remains responsible for the model, calculations, standards, assumptions, interpretation, coordination and issued conclusion.