2026 BES Session: Energy Performance of Residential Steep-Slope Roofing (Desjarlais A., Olson R., Shepherd W.)

2026 BES Session: Energy Performance of Residential Steep-Slope Roofing

(Desjarlais A., Olson R., Shepherd W.)

Course Overview
This session was originally presented at the 2026 IIBEC Building Enclosure Symposium in Indianapolis, Indiana.  This course includes the following components:

• recording of the live session
• a summative assessment consisting of 10 multiple-choice questions
• two surveys required to claim continuing education credit

​​​​Description

The energy performance of residential steep-slope roofing assemblies is impacted by numerous variables including insulation, thermal mass, surface radiative properties, radiant surfaces, ventilation (attic and above-sheathing), and climate. Research is needed to understand the interactive effects of roof types, installation methods and reflectance levels have on the energy performance and durability of residential steep-slope roofing assemblies in varying climates seen in North America. To address these issues, the Tile Roofing Energy Cost Saving (TRECS) study was initiated to provide insights into the thermal performance of different residential roofing systems and how they interact with climatic conditions. Initiated in 2024, with a build phase of field test facilities in 10 different climate zones from hot and humid to cold and dry, the project exposes a variety of roofing assemblies to meteorological conditions and monitors the response of these assemblies in place for a period of three years. The project is estimated to complete data collection by the end of 2029 followed by analysis and publication of the data in 2030. This session will present a status report on this project.

Speaker/Author

André Desjarlais
Program Manager
Oak Ridge National Laboratory

Rick Olson
President and Technical Director
Tile Roofing Industry Alliance

Wade Shepherd
Westlake Royal Building Products

Course Access
Courses are accessible in LearnUpon for one year from the date of purchase.

Course Recommended Prerequisite(s)
General knowledge of how residential attics and steep-slope roofing systems are constructed and the components that make up these assemblies.

IIBEC Core Competencies:

Roofing

Knowledge Level: 

Intermediate (5–15 years)

Disclaimer
The views and opinions expressed in the session content at the 2026 IIBEC Building Enclosure Symposium are those of the content author(s)/speaker(s) and do not necessarily reflect the policies or positions of the International Institute of Building Enclosure Consultants (IIBEC). IIBEC makes no warranty, whether express or implied, as to the completeness, accuracy or validity of the information provided.

Credit Start Date August 10, 2026             
Credit Expiration Date  August 10, 2029

Continuing Education Credit Statement
This course is approved for 1.0 IIBEC CEH
This course is approved for 1.0 AIA LU/HSW
AIA Course Number: BES26_22_OD
AIA Provider Number: G024

Continuing Education Credit Claim Information

To claim IIBEC CEHs and download a Certificate of Completion, learners are required to complete all components of the course, including a passing score of 70% or higher on the summative assessment.  Participants are provided unlimited attempts to complete the summative assessment with a passing score of 70% or higher.

• After completing the course requirements download a Certificate of Completion. 
• Participants are responsible for self-reporting IIBEC CEH credit by uploading their Certificate of Completion to their IIBEC Portal. For assistance in self-reporting CEHs, please reach out to: cehs@iibec.org
• If you are a member of AIA and would like IIBEC to report your participation in the course to AIA, there is a place in the course evaluation survey to input your AIA member number.

AIA CES Provider statement

IIBEC is a registered provider of AIA-approved continuing education under Provider G024. All registered AIA CES Providers must comply with the AIA Standards for Continuing Education Programs.  Any questions or concerns about this provider or this learning program may be sent to AIA CES (cessupport@aia.org or (800) AIA 3837, Option 3).

This learning program is registered with AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. AIA continuing education credit has been reviewed and approved by AIA CES. Learners must complete the entire learning program to receive continuing education credit. AIA continuing education Learning Units earned upon completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.