December 9th 2025

Introducing the Fundamentals of Building Performance Modeling Handbook

We’re proud to announce the release of Version 2 of the Fundamentals of Building Performance Modeling (BPM) Handbook - a major update to one of our most widely used educational resources.

Designed as a long-term reference for students, educators, engineers, architects, and energy modelers, this new edition offers clearer guidance, deeper technical insight, and expanded content to help readers master the core principles of building physics and performance simulation.

What’s New in Version 2.0?

To reflect the evolving needs of the AEC industry and the increasing complexity of building performance work, we’ve added new topics that cover:

  • Psychrometrics
  • Solar and Wind
  • Thermal Bridging
  • Overheating and Window Operation
  • Thermal Zoning for HVAC Design
  • Refrigeration

The Handbook is authored by Liam Buckley, Senior Vice President of IESVE Software at IES and newly awarded IBPSA Fellow. With over two decades of impactful leadership in building performance simulation, Liam is also a long-standing educator and contributor to industry standards, shaping how the next generation learns about the integration between building physics, active systems, code-compliance and performance modeling.

Download Your Free Copy

The Fundamentals of Building Performance Modeling Handbook is available to download now.

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