Description
Course Overview
This session was originally presented at the 2023 IIBEC Building Enclosure Symposium in Orlando, Florida. This course includes the recording of the session, a summative assessment consisting of 10 multiple-choice questions, and surveys required to claim continuing education credit.
Description
This presentation will provide a review of the investigation on the role of a vapor retarder in a roof assembly by hygrothermal modeling in Climate Zones 2, 7, and 8 using WUFI, an established simulation tool. For this simulation, a wood-cement composite roof deck (R-value of > 35 hr. ft2°F/BTU), utilized at various locations in the assembly, is modeled. The models, with and without a vapor retarder, provide acoustics, thermal insulation, and a nailable surface (such as oriented-stranded board). The simulation results surprisingly indicate that in climate zones up to 7, there is no risk of condensation in the roof deck without a vapor retarder.
Course Access
Courses are accessible in LearnUpon for one year from the date of purchase.
Credit Start Date
July 31, 2023
Credit Expiration Date
July 31, 2026
Course Prerequisites
Prior knowledge of psychometry, transient heat & moisture transport, vapor drive, roof deck construction.
Knowledge Level:
Advanced
Continuing Education Credit Statement
This course is approved for 1.0 IIBEC CEH
This course is approved for 1.0 AIA LU HSW
Continuing Education Credit Claim Information
In order to claim IIBEC CEHs, learners are required to:
- Achieve a passing score of 70% on the summative assessment
(learners are provided unlimited attempts) - Complete the course Evaluation & Attestation Survey
After completing the Evaluation & Attestation Survey, learners will be able to download a Certificate of Completion. Learners 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
In order to claim AIA LU, learners are required to complete the above requirements, as well as:
- Complete the AIA Survey (AIA member number is required)
AIA continuing education Learning Units earned upon completion of this course will be reported to AIA CES for AIA members.
Author(s)/Speaker(s)
Gourish Sirdeshpande, PhD
STR Resources
Lancaster, Pennsylvania
Gourish Sirdeshpande, PhD, is a senior principal scientist at STR Resources in Lancaster, Pennsylvania. Previously, he was a senior principal scientist in research and development at Armstrong World Industries Inc., with over 35 years of experience. His interests are in heat and mass transfer modeling, composite materials, building energy and indoor environment quality. He is the vice-chair of ASTM D22-05 on Indoor Air Quality and a member of the US delegation for ISO TC146-SC6 on Indoor Air Quality. He is a member of ASHRAE, ISIAQ, ASTM, and AIChE. He is also a member of ASTM-D08.
Objectives
At the conclusion of this session, participants will be able to:
- Explain the current steady-state methodology for determining the use of vapor retarders in roof assemblies.
- Describe the importance of various indoor and outdoor factors that determine the risk of condensation in roofs.
- Define a self-drying roof assembly and explain the conditions for a roof to be considered self-drying.
- Explain why the role of a vapor retarder in roof decks can be misunderstood.
- Discuss the need for acoustics in learning environments and the role of roof decks in achieving minimum reverberation time.
Certificate
By completing/passing this course, you will attain the certificate Certificate with IIBEC and AIA Logos
Learning Credits
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