You are here

Engineering Vegetated Roofing Systems to Optimize Stormwater Management: 1PDH

Upcoming Events

Apr 21
Engineering Vegetated Roofing Systems to Optimize Stormwater Management: 1PDH Next Level Stormwater Management Apr 21, 2021 : 10:00 am to Apr 22, 2021 : 10:45 am

Second of 3 Part Live, Educational Series-LACES-Approved 1PDH

Register Free:

Urban centres have high concentrations of impervious areas which pose a challenge in managing large volumes of stormwater. Heavy rain events or back-to-back storms cause problems like flooding, property damage, and combined overflow sewer discharge. Green infrastructure, such as vegetated roofs, can help mitigate these problems because they restore the hydrologic cycle in urbanized areas. Vegetated roof systems designed for maximum stormwater management decrease the volume of stormwater within the urban core and reliably delay travel time of stormwater to the treatment plant. These retention and detention strategies help alleviate the burden of heavy stormwater on our cities’ infrastructure. 

Presenters: Dr. Karen Liu (Vancouver) & James Weldon (Toronto)

Learning Objectives:

1. The distinction between stormwater retention and detention
2. The importance of detention in urban centres (ie Greater Toronto Area)
3. Existing roof top technologies
4. Using biomimicry to re-engineer vegetated roofing system
5. Collaboration: Landscape Architects, Architects, Civil Engineers


1 Yonge St. Ste 1801
Toronto, ON M5E1W7
(647) 290-4460
Click to view background photo & credits
Project: Telus Atrium Garden
Landscape Architect / Firm: Sharp & Diamond Landscape Architecture Inc in collaboration with Cornelia Hahn Oberlander
Location: Vancouver, British Columbia
Photo Credit: Brett Hitchins