August 11, 2021 05:00 PM - 07:00 PM


A Systems Approach for Deep Retrofits of Existing Buildings

building with lights on imageGovernment policies to lower the greenhouse gas (GHG) emissions of new buildings are in place across many North American jurisdictions. However, constructing new buildings – no matter how “green” they are – will not be the only path to meeting climate goals. Numerous existing buildings must undergo deep retrofits to reduce operational energy consumption, mitigate the anticipated effects of climate change, and ultimately lower global GHG emissions. Many buildings have undergone “light” retrofits already, but deeper retrofits that include the building enclosure and energy systems will need to be planned as part of service life renewals or stand-alone projects. While we await code changes that will require existing building retrofits, building owners, consultants, and municipalities should come together now to assess scopes, savings, timing, costs, and available incentives and grants, for deep retrofits. How do we approach these retrofits? How deep can the retrofits go? This presentation will discuss the integrated assessment of existing building enclosures and energy systems to provide owners with roadmaps to retrofit individual buildings and building portfolios. 


speaker pic

Sarah Gray, M.Sc., P.Eng., CAHP

Principal, Senior Building Science Specialist
RDH Building Science Inc.

Sarah Gray has been in the building science field for over 20 years. She holds a Bachelor of Science degree in civil engineering from the University of Cincinnati and a Master of Science in historic preservation from the University of Pennsylvania. Her work is focussed on heritage building rehabilitation, existing building condition assessment and renewal, building enclosure consulting for new construction, and Building Enclosure Commissioning services.


speaker pic

Andrea Pietila, P.Eng., CPHC

Energy and Sustainability Analyst
RDH Building Science Inc.

Andrea Pietila has worked to support sustainable design and green energy systems for over 8 years. She completed her Bachelor of Engineering in aerospace engineering and Master of Applied Science in mechanical engineering from Carleton University. Her Masters thesis research involved achieving a zero “peak demand” energy residential housing design. Her work is focussed on whole building energy modelling, net zero energy and zero carbon buildings, existing building energy studies and deep retrofits, and Passive House design projects.


speaker pic

Tereza Todorova

Project Manager (A)
City of Toronto’s Tower & Neighbourhood Revitalization Unit

Tereza Todorova is a Project Manager (A) with the Tower and Neighbourhood Revitalization Unit at the City of Toronto. She specialises in working in high-density areas with culturally diverse communities with focus on improving built form as well as quality of life for residents. Tereza oversees the High-rise Retrofit Improvement Support (Hi-RIS) and Sustainable Towers Engaging People (STEP) programs which provide a holistic approach to building retrofits and financing. Tereza will also be leading the Taking Action on Tower Renewal program – a new financing and grant program focused on reducing greenhouse gas emissions while maintaining affordability and improving tenant comfort.


Webinar Fee

BSS/OBEC Member: $28.00 + HST
OAA Member: $28.00 + HST
(Includes Certificate of Attendance for BSS Credits)

Non-Member: $45.00 + HST
Student: $10.00 + HST
Group rate available, please contact OBEC for more information


Register Online
pay by credit card

Sponsor This Event

Webinar Sponsors: $250.00 + HST 
[Includes company logo on all eblasts, logo and web banner on event webpage, social media recognition and ability to provide a video message for social media.]

Become a Sponsor


Event qualifies for 2 BSS Credits | 2 OAA Core Learning Hours