2026 BES Session: Reroofing Over Legacy Lightweight Concrete Roof Decks, Testing Driven Design for Risk Reduction and Code Compliance (Gulati R., Salas G.)

Reroofing Over Legacy Lightweight Concrete Roof Decks, Testing Driven Design for Risk Reduction and Code Compliance

(Gulati R., Salas G.)

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
This session will address risk management in reroofing over legacy lightweight concrete roof decks constructed over wire mesh and formboard systems. Using field documentation, laboratory testing, and case-study evidence, the program demonstrates how mid-century deck systems, originally designed as lightweight composite substrates, present challenge as attachment platforms for modern roofing systems and extend building service life. The intended audience includes architects, engineers, building enclosure consultants, and building owners responsible for designing, specifying, funding, or approving reroofing projects. The session links these technical findings to code compliance requirements, demonstrating how testing establishes a defensible, project specific basis for determining whether a deck can be reused for re-roofing and perform, requires structural augmentation, or must be replaced. The information is directly applicable to capital-planning, forensic evaluation, construction documents, and permitting, helping project teams reduce liability, improve durability, and avoid costly reroofing failures driven by assumption-based design.

Speaker/Author

Rupesh Gulati, AIA, RBEC, LEED AP, CxA+BE, BECxP, CBECxP
Director of Building Envelope
Raymond Global Inc.

Guido X. Salas, RRC, RRO, Assoc. AIA
Vice President
Raymond Global Inc.

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

Course Recommended Prerequisite(s)
• Working familiarity with commercial roofing and building envelope systems

• Basic understanding of how roofs are designed, constructed, and replaced.

• Familiarity with construction drawings, roof assemblies, and common reroofing terminology, including concepts such as roof decks, insulation, membranes, and attachment methods.

• General awareness of structural behavior and moisture control in buildings is expected, including how loads are transferred through roof systems and how water and vapor affect roof performance.

• While detailed structural or materials engineering expertise is not required, attendees should have sufficient background to interpret testing results, code references, and design implications presented during the session.

IIBEC Core Competencies: 

Roofing

Knowledge Level:

Advanced (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_14_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.