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Wind Design Series Part #2 | Exposure Category, Surface Roughness and Gust Factor

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This presentation will start with a review of exposure categories and how exposure affects wind speeds at a building site. It will then demonstrate how a site specific exposure can be computed using ASCE7 methods. The presentation will then cover the origin and purpose of the Gust Factor for rigid versus flexible buildings, followed by an illustration of the steps used to calculate the Gust Factor.

  • Course will award 1.5 hours of continuing education
  • This course is Diamond Review approved in 49 states. New York does not accept hours from recordings

Please note: This webinar is part of the
Wind Design Series and is not included in the NCSEA Webinar Subscription.


  • Russell A. Larsen, PE, SE

    Russell Larsen is a Senior Associate at Magnusson Klemencic Associates (MKA), a 220-person award-winning structural and civil engineering firm headquartered in Seattle with a branch office in Chicago. He leads MKA’s Wind and Analysis Technical Specialist Teams, and is also a key member of the firm’s BIM, Concrete, and Steel Technical Specialist Teams. Russell serves as a voting member of the ASCE7-22 Wind Loads Committee, leader of the ASCE7-22 Performance-Based Wind Group, and as a primary author for the ASCE Pre-standard for Performance-Based Wind Design (PBWD) published in June 2019.

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April 14, 2020
Tue 10:00 AM PDT

Duration 1H 30M

This live web event has ended.