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TSA Technical Series | Building Enclosure Design & the Toronto Green Standard

The Toronto Green Standard (Version 3), Toronto’s sustainable design requirements for new private and city-owned developments, has introduced a four-tiered framework for development to achieve near-zero greenhouse gas emissions by 2030. Central to this framework are three key performance metrics and targets – Thermal Energy Demand Intensity (TEDI), Energy Use Intensity (EUI), and Greenhouse Gas Intensity (GHGI) – which become increasingly stringent as we move up to the top tier (Tier 4) over the next 10 years. Since these targets reflect the overall performance of the whole building, the specific impact on the building enclosure is not immediately obvious. 

Join the TSA for this 1 hour webinar as we discuss the building envelope thermal performance in the context of the TGS (V3) whole building targets (TEDI, EUI, and GHGI). The presentation will go over key definitions and concepts  and provide some examples of typical assemblies that reflect this level of performance.

Some Resources


About the Speakers 

Erica Barnes, M.A.Sc., P.Eng., CPHC 
Kelsey Saunders,  B.Arch.Sc., M.B.Sc., CPHD, LEED AP BD+C 
Amy Montgomery, M.A.Sc., P.Eng.

RDH Building Science Inc.

At RDH, we have a passion for making buildings better. Whether it’s as part of a design team for new construction projects or the renewal of existing buildings, our focus is on helping clients make informed decisions that lead to durable and effective buildings. 

Erica Barnes is a Project Manager and Building Science Engineer on the RDH Toronto team. Kelsey is a Project Manager and Building Scientist on the RDH Toronto team. Amy Montgomery is an Associate of RDH as well as a Project Manager and Building Science Engineer on the RDH Toronto team.

This technical lecture is part of the Building, Technology, Science and Technology (B.E.S.T.) Series, a collaboration of the Toronto Society of Architects and the John H. Daniels Faculty of Architecture, Landscape, and Design bringing affordable, timely and relevant knowledge, skills and tools to the profession as we work together to address the climate crisis.


TSA MEMBERS: This event is free for TSA members using the discount code found in TSA's March 16 e-bulletin.

OAA MEMBERS: 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.

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