IIBEC/AEI BES 2022: Underlayment and Understanding Moisture Effects on Shingles and Fasteners ($95.00 Member/$110.00 Non-member)

Underlayment and Understanding Moisture Effects on Shingles and Fasteners was originally presented at the 2022 IIBEC/AEI Building Enclosure Symposium.  This course includes the recording of the session as well as a summative assessment consisting of 10 multiple-choice questions.

Course Start Date: November 30, 2022

Course Expiration Date: November 30, 2025

Course Prerequisites: None

Knowledge Level: Intermediate

Continuing Education Credit Statement: This course is approved for 1.0 IIBEC CEH.  This course is approved for 1.0 AIA LU HSW.  
A passing score of 100% on the summative assessment (unlimited attempts) is required in order to earn Continuing Education Hours and AIA LU HSW credit. After completing this course, 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.

Description
Although cedar shakes and shingles are not considered corrosive, the electro galvanized carbon steel fasteners have failed on several cedar roofs, resulting in shingles becoming dislodged from the roof. Studies have revealed that some of these products had very poor coatings and were unlikely to withstand any corrosive condition. A four-year study was launched in 2018 in an attempt to obtain a clear answer to the cedar roof fastener failure and why some roofs were experiencing premature distortion, primarily when installed over barrier underlayment. In this study, eleven installation variations—including underlayment and under shingle spacing—were studied using 442 Moisture pins, 396 thermocouples, 6 cameras, and a multifunctional weather station. Data was collected and recorded at intervals of 15 minutes, 24 hours per day, for the 4-year duration. This presentation summarizes the results of the study, the learnings that apply to all steep roofs, and the development of a superior moisture pin that could be used in any future roofing study of moisture and temperature on roofs.

Learning Objectives

1. Discuss moisture, temperature, and corrosion research related to the presented study.
2. Explain how reflectance affects rooftop temperature.
3. Summarize how barrier underlayment’s can affect shingle performance.
4. Review gap spacing and differences in temperatures upslope.

Speakers/Authors

David Roodvoets
DLR Consultants | Montague, MI

David Roodvoets is an independent consultant. Previously, he was employed as an associate development scientist for the Dow Chemical Co. and technical director for the T. Clear Corp. Roodvoets has been involved with research on all facets of roofing systems. He has worked with major research institutions and conducted extensive wind tunnel testing of roofing systems. Recently he participated in a four-year study of temperature and moisture effects on cedar roofs. He is active in many building enclosure-related organizations, including ASTM, Cool Roof Rating Council, Single Ply Roofing Industry, American Society of Heating, Refrigerating and Air-Conditioning Engineers, and Roofing Industry Committee on Weather Issues.

Tony Hyatt
Cedar Shake and Shingle Bureau | Madison, WI

Anthony (Tony) Hyatt has been the national manager of the Cedar Shake & Shingle Bureau for 11 years. Hyatt is an experienced field representative in business-to-business and direct sales, small business management, and regional marketing of roofing products. He has worked in the steel roofing industry, offering sales, product application training, estimating, and consulting. Hyatt has worked on a number of different roof installations and has conducted hands-on educational training seminars in multiple states, as well as one in Japan. He owned and operated his own roofing company in the Wisconsin, held the Certainteed “Master Shingler” designation, and installed cedar roofs.

Reviewer

Sandy Hembroff,  A.Sc.T., CET, REWC, REWO, BECxP, CxA+BE
2022 Building Enclosure Symposium Committee Member

AIA CES Provider statement

IIBEC is a registered provider of AIA-approved continuing education under Provider Number 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.