Upcoming Events

Apr 5 2022 Lecture /

TSA Technical Series | Retrofitting Heritage Masonry Buildings

12:00 - 1:00 PM

Online via Zoom

$15 General Admission, Free for TSA Members using code in Feb 22 Bulletin

Register Now!

Late 19th and early 20th century masonry buildings — from historic warehouses to Victorian homes and main-street shops — make up the majority of our urban cores, providing significant cultural, heritage and embodied energy resources to their communities.They speak to our history and their robust assembly and appealing character make them adaptable to new uses. However, these structures are also typically energy inefficient, putting them seemingly at odds with climate action goals that characterize 21st century practice.

So how do you meet the challenges of a net-carbon and energy neutral future while maintaining these important built assets from our past? 

Join us for this 1 hour webinar as architect Eric Charron and Building Scientist Dr. Randy Van Straaten share with us first principles for energy retrofitting heritage masonry, including best practice dos and don’ts and pitfalls to avoid. Participants will learn about:

  • Best practice assessment and retrofit approaches for heritage interior thermal insulation retrofits.
  • First principles to manage air leakage and moisture control; the most significant energy, heat loss and deterioration risks to heritage buildings.
  • Case study examples of retrofit approaches that will illustrate concepts and impacts to energy reductions.


Helpful Resources


About the Speakers

Eric A. Charron is an architect with Diamond Schmitt Architects, experienced in the conservation, restoration and retrofit of heritage buildings in Ontario.  He is currently project lead of the retrofit and adaptive re-use of the historic Weston Bakery building in Toronto to residential use.  His previous experience with Spencer R. Higgins Architect Inc. included the restoration of the Dome of the Saskatchewan Legislature in Regina, as well as historic analysis and retrofits to Queen’s Park, Toronto among notable projects.

Dr. Randy Van Straaten owns Building Enclosure Labs Inc (BELi) providing material testing, hygrothermal and thermal modelling, and field review for many projects often in partnership with other architectural and/or engineering firms.  BELi is one of the few labs that can effectively measure critical freeze thaw saturation.  Randy is an associate member in the Yeates School of Graduate Studies at Ryerson University regularly serving on review committees for graduate studies research masonry durability and he teaches Building Science for Retrofit at George Brown College.  Within his firm and in previous experience with RDH Building Science he has worked directly on over 50 project projects across North America ranging from field reviews of Toronto homes to highly involved investigations for some of North America’s most valuable building assets.


TSA MEMBERS: This event is free for TSA members using the discount code found in our February 22 e-bulletin! Not a member yet? Membership is open to everyone and you can join here (student memberships are free!).

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.


This technical lecture is part of the Building, Ecology, 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.

Register Now!