LL216 – Type III Construction: Exterior Walls—Designing Detailing for Code Acceptance

With the growth in mid-rise wood-frame buildings, more designers are seeking information on code-compliant and constructible detailing. Many are unsure of the code's requirements for details, specifically at the intersection of rated assemblies and where structure and fire protection meet.

Untangling this issue is the goal of this presentation. Join us for a review of mid-rise wood-frame opportunities unique to type III construction. Plus, take a deep dive into detailing code requirements, code compliance, and rationale for approval with an emphasis on constructability and practicality.

Learning Objectives

1. Review requirements for exterior walls and common questions about asymmetric assemblies, the allowance of wood structural panels, bearing vs. non-bearing requirements, and more.
2. Compare a variety of floor-to-exterior wall details for use in wood-frame, Type III construction, and discuss code compliance paths and approval rationale for each.
3. Examine shrinkage of the structural frame based on various components and methods and how to address differential movement of the interacting assemblies.
4. Explore building code and related code requirements for balconies.

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