Building Performance Contractors Association

3 Building Science EVents

with Joseph Lstiburek, Ph.D., P. Eng. &
John Straube, Ph.D., P. Eng.

Designing, Constructing & Retrofitting Low Energy Buildings: Tools, Techniques and Technologies

Background Reading

The following are recommended reading for this workshop:


Schedule Session
7:00 am Sign in, Registration and Continental Breakfast
8:00 am 1: Introduction
  • Why Energy Matters.
  • Prioritizing for Low Energy Design.
  • Human Comfort, Health and Building Durability.


  • What is the relationship between Embodied Energy and the Operating Energy?
  • What are the reasons to reduce energy use?
  • Are there risks in designing low energy buildings?
9:00 am 2: Good Enclosures: New and Retrofit
  • Architectural Detailing for the Tough Stuff: Air-tightness, Rain Control, Insulation and Thermal Bridges.
  • Advanced Glazing Systems and Solar Control.
  • Useful Guidelines and Metrics for Passive Design.


  • What design elements have the most effect on Energy Efficiency?
  • How much glazing is too much glazing?
  • How do we design walls to avoid thermal bridges?
10:00 am Break
10:15 am 3: Good HVAC
  • Understand Air-based and Hydronic Distribution, Benefits and Drawbacks
  • Getting Good Efficiency out of Your HVAC Equipment.
  • The Goldilocks Question - Not Too Much, Not Too Little Ventilation, Delivered Efficiently.


  • What is Latent Heat?
  • Do Green Buildings need more or less ventilation?
  • How can Advanced HVAC Systems affect the design of a building?
11:30 am Lunch
12:30 pm 4: "Far out there" HVAC and Renewable Energy Sources
  • Natural Ventilation - Doing the Math.
  • Radiant Heating, Radiant Cooling, Chilled Beams.
  • Renewable Energy Choices.


  • Where should window shades be installed?
  • Do advanced HVAC Systems like Radiant Cooling work?
  • When and where does natural ventilation work to improve comfort?
2:30 pm Break
2:45 pm 5: Putting it All Together
  • Systems Thinking and Synergistic Interactions.
  • Energy Modeling and Other Tools for Analysis and Design.
  • Beyond the Rating: How to Measure, Learn and Share.


  • How useful and accurate are energy models?
  • What is the role of testing, rating, and commissioning?
  • What does it take to build a good building?
4:00 pm Discussion and Questions
5:00 pm - end -

For more information about the workshop, contact: