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All SeaBEC Members and guests are welcome. This event is free for SeaBEC members and $10 for guests.
Location:
600 Stewart Street, Conference Room 101 (off of the 1st floor lobby), Seattle WA 98101
Date
Thursday, September 21, 2023
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Schedule
11:00 am to 11:30 am Socializing + Networking
11:30 am - 11:45 am
SeaBEC Business + Announcements
11:45 am - 1:00 pm
Speaker Presentation and Q&A
Meeting Sponsor: Kevin Vaughn with:
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A Tale of Two Cities: Implications of Envelope Backstops in Recent Energy Codes
In the drive for increased energy efficiencies, recent energy codes are putting increased focus on the thermal performance of enclosure assemblies. One increasingly popular concept is the introduction of envelope backstops to limit the traditional energy codes approach of accommodating a shortfall in the thermal performance of the enclosure using efficiencies from other building systems. We will contrast the UA restriction approach to envelope backstops adopted in the latest City of Seattle Energy Codes and other US jurisdictions with the TEDI (Thermal Energy Design Intensity) approach adopted by the British Columbia Step Code and other Canadian jurisdictions. We outline the particular challenge this presents for the enclosure design of a high-rise building using the case study from the Artscape project in Vancouver, one of Canada’s tallest Passive House buildings. Examples from the Building Envelope Thermal Bridging Guide will be used to illustrate the current limitations of traditional unitized glazing systems when it comes to accounting for the impact of thermal bridging on enclosure thermal performance. We will conclude with a couple of examples of how manufacturers are adapting the design of unitized glazing systems to meet this new challenge.
Codes are putting increased focus on the performance of enclosures. One increasingly popular concept is the introduction of backstops to limit the approach of accommodating a shortfall in the thermal performance of enclosures using efficiencies from other systems. We will contrast the backstops adopted in US and Canadian jurisdictions. We will outline the challenge for high-rise buildings using the case study from one of Canada’s tallest Passive House buildings. Examples from the Building Envelope Thermal Bridging Guide will illustrate the thermal limitations of traditional spandrel design. We will conclude with examples of how manufacturers are adapting to meet this challenge.
 With an educational foundation that combines structural engineering, building science, and architecture, Stephane brings a well-balanced consulting approach to the building envelope, blending scientific analysis with an understanding of aesthetic considerations. He is particularly adept at providing innovative design concepts and construction alternatives that provide value by improving durability and increasing energy efficiency. As a key technical leader at Morrison Hershfield, Stéphane has worked on projects throughout North America. He led the expansion of Morrison Hershfield’s building science business across the United States and pioneered their Façade Engineering practice. He now leads their Building Science Analytics Group combining Facade Engineering, Energy Modeling, and Envelope Component Modeling to assist teams in designing high-performance buildings. Stéphane holds a Masters of Engineering from McGill University and a Masters of Architecture from the Université de Montréal. He is a licensed professional engineer.
AIA CREDITS: The application has been submitted, but we have not received confirmation yet. We will update the website when we get confirmation.
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We hope you had a great summer! The SeaBEC Board looks forward to seeing you all later this month!
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