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Vapor Retarders in the Roof Assembly; Does it Need One?

January 20, 2026 @ 8:15 am - 9:15 am PST

Stay on Top: Essential Fall Prevention for Residential Roofing

Warehouses, Wood Decks and Mechanically Attached Low-slope Roof Systems – Understanding the Risks and Guidance for Success

IRE - Events 2026 -SM

The program will reivew basic building science and resources available to designers and roofing contractors. The difference between a vapor retarder and an air retarder will be discussed and what teh bulding codes require of each. Various example roof assembly calculations will be presented to determine the need of a vapor retarder in a roof assembly.

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Details

Start: Jan 20, 2026 @ 8:15 am PST
End: Jan 20, 2026 @ 9:15 am PST

SRS - Banner Ad - IRE 2026

UP TO THE MINUTE

2025 MBMA annual report now available

The report focuses on the many accomplishments the association and ...

NRCA encourages roofing professionals to complete latest Quarterly Market Index Survey for Reroofing

The survey is an industrywide effort to collect information about ...