IES Model Auditing

Building performance modelling software can influences the design of almost every construction project. Our team of experts are suitably qualified and experienced to audit complex IES models giving our clients confidence in their results.

From concept to construction, IES models are relied upon in the design and specification of the thermal envelope and building services. Below is a non-exhaustive list of building features that IES models are used to influence:

  • Predicted energy consumption
  • Section 6 / Part L and EPC’s (CO2 emission calculations)
  • Renewable energy technologies
  • Natural ventilation strategies
  • Daylight provision (and solar shading)
  • Heating and cooling loads
  • Thermal comfort (overheating)
  • Building orientation optimisation 
  • Indoor air quality
  • Plant sizing

It is therefore imperative that the project has been modelled correctly within the complex IES software, to ensure the delivery of an efficient, cost-effective and comfortable building (thus avoiding post-occupancy issues). As leading experts in thermal modelling, we check that the building geometry, thermal envelope and all services information have been inputted correctly to ensure they reflect the projects designs, before verifying any available results. Comprehensive reports, detailing all of our checks and recommendations, are issued to clients for consideration.


Collective Architecture are currently working with Carbon Futures on a number of large scale housing developments, having previously worked with the team on a variety of award winning projects.  Carbon Futures are an important part of the design team who successfully integrate sustainable energy strategies into our proposals.  They approach each new project collaboratively, with a strong interest in working with us to realise an holistic design approach. We would not hesitate to recommend them.

Collective Architecture