Green Roofs: Strategies to Meet Policy & Design Goals in Toronto

Free Webinar Presentation

June 21, 2023

1 PM ET 


What Engineers Are Saying about NLSM Webinars

“Excellent.  Appreciated the amount of detail as it pertains to the various SWM calculations required.”  Mike Hall, P.Eng, Condeland Engineering

Great. Appreciated the time to answer all questions.” Carolina Daza Ortiz, P. Eng, Metrolinx

“Informative session.” Wadah Al-Yassiri, City of Windsor

“Very beneficial & informative hour.” Ali Al-Shalah, DS Consultants

“Really informative session.” Thiru Siva Thirupparan, M.Eng., P.Eng.

“Great information.” Ahmed Al Obaidy, P.Eng., Dora Engineering

Green Roofs: Strategies to Meet Policy & Design Goals in Toronto


Green roofs are an effective green infrastructure technology with multiple co-benefits to offer. As cities increasingly adopt nature-based solutions to help respond to climate hazards, green roofs are one of the most efficient low impact development choices. There are currently over 30 municipalities in North America that have either policies or incentive programs to encourage their adoption.

Green Roofs: Strategies to Meet Policy & Design Goals in the City of Toronto explains how a green roof can effectively designed to check off multiple requirements set out by the Toronto Green Standard (TGS) and the Wet Weather Flow Management Guidelines (WWFMG), among others. Many requirements are interdisciplinary and therefore a successful project requires a collaborative approach between the architect, landscape architect, and engineers. We explore individual components, learn about their functions and selection criterion, and how to combine them into engineered systems to achieve specific design goals. An emphasis is placed on the strongest driver behind the current green roof growth in North America, stormwater management. Proof of Attendance will be issued for one hour CE/PDH hour.

Learning Objectives

At the end of this webinar, attendees will be able to:

1. Understand how various components create green roof systems to achieve design intents
2. Learn local policies aimed at enhancing sustainable development using green roofs
3. Identify green roof systems that can successfully address a policy requirement
4. Understand how a multi-disciplinary approach to designing green roofs is key


Karen Liu, PhD Green Roof Specialist

Sasha Aguilera, GRP Design Ambassador




More than 2.5 M SQFT supplied coast to coastNext Level Stormwater Management logo in bold blue with logo above in blue and green

Next Level Stormwater Management  is Canada’s leading supplier of pre-vegetated roofs such as LiteN’Less™, Xeroflor® and StormCap™ systems. Our team provides analytical support such as project-specific ​stormwater calculations. As a Purple-Roof partner, Next Level Stormwater Management has access to the latest green roof stormwater test data and related innovative hydrologic modeling tool. Email or call 416-637-5772