2026 BES Session: CIB W083 Captures Complexity of Low-Slope Roof Alterations (Grant E., Levaque JG., Wassef A.)

2026 BES Session: CIB W083 Captures Complexity of Low-Slope Roof Alterations

(Grant E., Levaque JG., Wassef A.)

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

To advance sustainable roofing practices, the International Council for Research and Innovation in Building and Construction Roofing Materials and Systems Commission (CIB W083) is exploring approaches to salvage and reuse roof components. These efforts are intended to support roof consultants, building owners, contractors, and related professionals.   Salvaging materials is often impractical, and usable components are often discarded to install new roof systems when the roofing layer is replaced. For example, entire roof systems are torn off to boost thermal efficiency of the roof assembly, with little consideration for the environmental or financial impacts of the waste created or the resources needed to replace good materials. CIB W083 representatives will present the following series of interrelated documents to assist with decision-making when altering an existing low-slope roof: 

• Roof Alteration Process (RAP): A decision-support process guideline outlining parameters to consider when altering existing roofs. 
• Roof Alteration Matrix (RAM): A table visually depicting various approaches to roof alteration grouped by low-slope roof system. 
• Roof Alteration Definitions (RAD): A list defining terms for each participating country. 

This work will continue to evolve as more countries share new or updated information. Upcoming versions will feature case studies, an overview of best practices, and appendices.

Speaker/Author
Elizabeth Grant, PhD, RA

Jean-Guy Levaque, F-IIBEC, RRC, RRO, Arch. Technologist

Wassef Alameddine, M.Arch, AIA, CSI

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

Course Recommended Prerequisite(s)

• Attendees must have general knowledge of low-slope roof components and design principles as well as a working understanding of the relationships amongst roof designers, constructors, building owners and building code officials. Familiarity with codes and regulations and experience with reroofing will enhance understanding of the material presented in this session.

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 31, 2026               
Credit Expiration Date  August 31, 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_11_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.