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AIASF Building Enclosure Council

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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 outline the particular challenge this presents for enclosure design of high-rise building using the case study from 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 system to meet this new challenge. This program is in collaboration with AIASF's Building Enclosure Council.

Presenter

Stéphane P. Hoffman, M. Arch., M. Eng., PE

Principal Senior Building Science Specialist Vice-President, Building Performance Analytics, Façade Engineering+ Building Science Western US

Moderator

Robert Tarasovich, AIA Robert Tarasovich is an American-born Architect with three (3) decades of professional accomplishments. His in-depth knowledge of architectural design, documentation, detailing, construction techniques, and building materials allows him to tailor well-coordinated specification documents. Robert oversees the development and production of specification documents for projects at Solomon Cordwell Buenz (SCB) in the West Coast Offices.

Learning Objectives (1LU PENDING)

  • Understand the building situations that require NFPA 285 in the International Building Code (IBC) and California Building Code (CBC).
  • Understand the “state of the art” designing for NFPA 285 compliance.
  • Understand the fire/life safety objectives of NFPA 285 and its development history.
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