Due to unforeseen circumstances the April 13th event will only be available by webinar.  Please note the time changes.

This presentation will focus on the Toronto Green Standard (TGS) building performance targets and how they impact building enclosure design. The Toronto Green Standard is Toronto’s sustainable design requirements for new private and city-owned developments. TGS v4 comes into effect this year and shifts the minimum performance targets closer towards the City’s goal of achieving near-zero greenhouse gas emissions in all sectors by 2040. Central to the TGS 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) by 2028. Since these targets reflect the overall performance of the whole building, the specific impact on the building enclosure is not immediately obvious. We will explore how the enclosure performance ‘moves the dial’ on these performance metrics, focusing in on the TEDI and the overall enclosure design strategies that will be needed to meet these targets based on our experience.


Erica Barnes, MASc, P.Eng.
Erica is a Building Science Engineer at RDH Building Science in Toronto. Her focus is on the design and construction of new buildings and the renewal and rehabilitation of existing building enclosures, including heritage preservation. Erica has worked in building enclosure consulting in Toronto for the past 10 years. She is on the Board of Directors of the Ontario Building Envelope Council (OBEC).


Amy Montgomery, MASc, P.Eng.
Amy is an Associate and Building Science Engineer at RDH Building Science Inc. in Toronto. She has over 10 years of experience in the building industry, including a diverse range of technical roles including energy modeling, forensic investigation, building enclosure design, and construction field review for both existing building rehabilitation and new construction projects. As a LEED Accredited Professional and Certified Passive House Consultant (CPHC), she brings a sustainability lens to all these roles.


Live Webinar

5:00 pm - 6:00 pm - Presentation
6:00 pm - 7:00 pm - Post Webinar Discussion

BSS Holder (OBEC Member)/OAA Members: $45.00 + $5.85 HST = $50.85
[Includes certificate of attendance]

Non Members: $60.00 + $7.80 HST = $67.80
Student Members: $10.00 + $1.30 HST = $11.30

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