TSA Technical Series: Navigating Changes to Part 4 of the OBC

We’re guessing you’ve probably heard there’s a new version of the Ontario Building Code (OBC). But did you know amongst the most significant code changes is an overhaul of Part 4, the section that governs structural design? Included in these changes are major updates to seismic requirements including new seismic hazard values, clearer wind and snow load calculations, and updates to reflect evolving risks, new materials like mass timber, and growing demand for consistency across the provinces.

Join us and Frédéric Ouellette of Engineering Link Incorporated for this TSA Technical Lecture as we take an in-depth look at the latest structural code updates. This session will focus on what’s new in Part 4, and how these changes impact architects working in both new construction and renovations. Particular focus will be placed on the bracing of non-structural elements and the implications of increased seismic loading. 

Whether you’re designing a new building or altering an existing one, this lecture will help you better understand what these changes mean for you and your practice.

 

 


 

TSA MEMBERS: This event is free for TSA Members using the discount code found in the TSA Bulletin and on your Member Dashboard. Not a member yet? Membership is open to everyone and you can join here (student memberships are free!).

OAA MEMBERS: This lecture is eligible for 1 OAA Structured Learning Hour. When registering, please include your full name as registered with the OAA to ensure your certificate of participation is credited properly. Please also include an email address you check frequently to ensure you receive our certificate in a timely manner.

Get Tickets

When Tuesday, December 9, 2025
12:00 - 1:00 PM EST

Where Online via Zoom

Cost $15+HST General Admission, FREE for TSA Members!

CEUs 1 Structured Learning Hour

Host Toronto Society of Architects (TSA)

Speaker

Frederic Ouellette
Associate, Structural
Engineering Link Incorporated

Program Sponsor

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