Blue-green roofs can transform urban stormwater management

By Cristina Senjug, Partnership Manager Next Level Stormwater Management

Innovative Blue-Green Roofs for Climate Adaptation and Resilience is a co-presentation at Grey to Green by Dr. Farzad Fahimi, Vice President at LEA Consulting and Dr. Karen Liu, Next Level Stormwater Management’s green roof specialist. Their presentation focuses on design strategies, cost-benefit analysis, and real-world performance of blue-green roofs. A Toronto green roof case study reviews an upgrade to a blue-green system to provide enhanced stormwater detention to eliminate the need for costly underground tanks.

Dr. Farzad Fahimi and Dr. Karen Liu presentation poster for Grey to Green 2025Conference

Dr. Farzad Fahimi has over 20 years experience on major environmental, municipal, infrastructure, and land development projects. His expertise spans watershed management, climate change adaptation, master planning, linear infrastructure, large-scale sewer systems, river engineering, and the integration of Green Infrastructure (GI) and Low Impact Development (LID).

Before joining the private sector, Dr. Karen Liu was a lead researcher of the green roof programs at the National Research Council and the British Columbia Institute of Technology. She led the research teams to evaluate water balance and examine stormwater management potential. Karen was a key participant in the research consortium that developed the first national wind testing standard for vegetated roofing CSA A123.24.

Canada’s Supplier of more than 2.5 Million SQFT

Next Level Stormwater Management (NLSM) is Canada’s leading supplier of high performance rooftop retention and detention solutions such as LiteN’Less™, StormCap™, Alpine Meadow and SpongeBase™. Ready to start your green roof project?  The NLSM team has more than 90 years combined industry experience and here to support you at every stage from design and construction to maintenance.  Please email us or call 416-637-5772 today.