GAB Report event briefing

Moisture-Smart Design for Mass Timber Buildings

  • DateNov 12, 2026 · 1:00 pm GMT-0500
  • FormatVirtual

About the event

This technical webinar explores building enclosure strategies to protect mass timber assemblies from moisture intrusion and accumulation. Led by building scientist Brad Carmichael, the session examines the unique hygrothermal behavior of cross-laminated timber and glued-laminated timber. Participants will review high-performance wall and roof configurations, detailing methods for water-resistive barriers, air barriers, and vapor retarders, alongside construction-phase moisture risk mitigation. Case studies illustrate how to establish a moisture management strategy that prevents fungal decay, supports indoor environmental quality, and preserves the long-term durability of structural wood components.

What you’ll learn

  • Explain the hygrothermal properties and moisture behavior of mass timber products, including cross-laminated timber (CLT) and glued-laminated timber (glulam), and how these characteristics influence enclosure design and long-term durability.
  • Evaluate the appropriate use and placement of water-resistive barriers, air barriers, and vapor retarders in mass timber wall and roof assemblies to reduce the risk of moisture intrusion, condensation, and material deterioration.
  • Identify construction-phase moisture risks associated with mass timber and assess protection strategies based on climate, construction schedule, exposure duration, project risk, and budget.
  • Apply moisture-management principles to develop enclosure and construction strategies that support occupant health, limit conditions that can contribute to decay and biological growth, and improve the long-term performance of mass timber buildings.

Attendance notes

WoodWorks will send each attendee a certificate of completion within 2 weeks via email. Attendees must stay for the duration of the event to receive a certificate. Attendees are also invited to stay for a non-accredited post-webinar manufacturer Q&A with Rothoblaas.


Keep exploring

More events worth your time

Oct 26

Virtual

Heat Pump Water Heater Week 2026

Heat Pump Water Heater Week provides a multi-day online exploration of residential and commercial heat pump water heating systems, organized by New Buildings Institute and the Advanced Water Heating Initiative. Sessions address packaged units, split systems, 120V models with flexible storage, product…

Oct 27

Virtual

Mid-Rise Wood Design: Light-Frame and Mass Timber Strategies

This regional online seminar hosted by WoodWorks provides an in-depth comparison of light-frame and mass timber systems for mid-rise building design. Led by structural engineer Mark Bartlett, the session investigates how building code provisions, construction classification, occupancy, and project objectives guide structural…