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 session examines building enclosure strategies to protect mass timber assemblies from moisture intrusion and accumulation. Focusing on the hygrothermal performance of cross-laminated timber and glued-laminated timber, the presentation covers enclosure approaches for high-performance walls and roofs. Instruction addresses the proper detailing and placement of water-resistive barriers, air barriers, and vapor retarders, as well as the designer role during construction. Case studies and technical guidance illustrate how to formulate moisture management strategies that prevent decay, preserve structural appearance, and support healthy indoor spaces. A post-webinar manufacturer session features product information from Rothoblaas.

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.