Thermal comfort simulations and associated assessments


FMC Services provides thermal comfort simulations and associated assessments to ensure optimal thermal conditions are achieved within a given project. The process can be undertaken at early stages to advise on required system performance but can also be utilised as and when required, our thermal comfort services are tailored to suit your project.

BREEAM Assessment Credits

  • Health & Wellbeing
  • HEA 04 – Thermal Comfort (3 Credits)

HEA 04: To ensure the building is capable of providing an appropriate level of thermal comfort.

CIBSE TM52: The Limits of Thermal Comfort: Avoiding Overheating in European Buildings

CIBSE TM59: Design Methodology for the Assessment of Overheating Risk in Homes

BB101: Guidance on ventilation, thermal comfort and indoor air quality in schools including ventilation standard for spaces, guidance on room temperatures and draughts.

CIBSE TM54: Evaluating Operational Energy Performance of Buildings at the Design Stage DSM (Dynamic Simulation Model) can be used to provide building owners and designers with guidance on how to evaluate operational energy use accurately at the design stage.


We can simulate air flow driven by wind pressure and buoyancy forces using a fast multi-zone thermo-fluid solve.

  • Demonstrate how to reduce the need for air conditioning using natural / mixed-mode strategies
  • Analyse all aspects of bulk airflow: infiltration, natural ventilation, façade design, mechanical ventilation.
  • Simulate air flow processes over different periods – from a single day to as long as a year.
  • Evaluate feasibility of strategies such as: single-sided ventilation, cross-ventilation, whole-building ventilation, opening controls and window opening category.
Image 4 - SBEM_DSM
Image 1 - Macroflo
Image 2 - Macroflo
Image 4 - SBEM_DSM Image 1 - Macroflo Picture1 Image 2 - Macroflo
Daylighting Analysis / Solar Shading

Using Dynamic Simulation Modelling (DSM) we are able to perform complex solar shading calculations to determine how solar rays pass through both external and internal openings, penetration across rooms and atriums into internal space is uniquely taken into consideration.

Daylight calculations and analysis can be provided for a realistic prediction of daylight or highlight potential areas within the project. This insight can also be used at early stages to advise on glazing percentages required for given areas

Guidance and compliance standards:

  • CIBSE Lighting Guide LG10:1999 – Daylighting & Window Design
  • Communities & Local Government Code for Sustainable Homes Technical Guide (Nov 2010)
  • BS 8206-2:2008 Lighting for Buildings – Part 2 Code of Practice for Daylighting

BREEAM Assessment Credits
Health & Wellbeing

  • HEA 01 – Visual Comfort (Up to 6 Credits)
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