Learning from Practitioners

Session 5 - Practical Challenges and Lessons Learned from Building in NYC and Beyond: Large Scale



Clayton Rugh, Xeroflor North America Green Roofs

Clayton Rugh, PhD is the Director of XeroFlor North America Green Roofs with more than 50 plant and environmental science publications, including numerous peer reviewed articles on green roof research and performance.   Dr. Rugh has assisted with more than 500 U.S. green roof projects including Ford Truck Plant, Javits Convention Center, FedEx O’Hare Facility, Empire State Building, and many others.


Matthew Barmore serves as Vice President at Greenrise Technologies, LLC a full-service green infrastructure firm out of the Nashville Metropolitan Area.  Matthew's duties primarily include leading technical sales of SkyScape Vegetative Roof Systems, working alongside the sales representatives, installers, and channel partners that together, grow the SkyScape brand.

Matt joined Greenrise after more than 10 years’ service at Firestone Building Products, the world’s largest commercial roofing manufacturer. While at Firestone, he held leadership positions in Technical Solutions, National Sales, Estimating, and Marketing. Matt is an accredited Green Roof Professional (GRP), a member of CSI, a reviewer for ANSI/SPRI, and serves on the Board of Directors of Green Roofs for Healthy Cities, where he chairs the Corporate Member Committee.

Prior to joining Firestone, Matt was an officer in the U.S. Air Force, serving in multiple deployments in support of operations combating global terrorism. He has degrees from Indiana State University (Terre Haute, IN), Bethel College and Seminary (St. Paul, MN), and a Green MBA from The San Francisco Institute of Architecture (Berkeley, CA).

Practical Challenges and Lessons Learned from Building in NYC and Beyond: Small Scale


Amy Falder, Co-Founder, New York Green Roofs

Amy Falder is a co-founder of New York Green Roofs – an award winning green roof firm based in New York City. Building on her extensive academic background in plant sciences Amy has spent the past 15 years thoughtfully pursuing horticultural work that positively impacts the lives of others in the New York area. From set-backs reaching 30 floors on the Empire State Building to 6 acres atop Jacob Javits Convention Center to intensive amenity space rooftops throughout the 5 boroughs, her firm collaboratively designs, installs, and maintains some of the city’s most iconic green roofs.

Mark Morrison, MKM Landscape Architecture (INVITED)

Session 11 - Research Forum

Research Forum


Reid Coffman, Associate Professor and Director of Novel Ecology Design Lab, Kent State Universiry. Research Committee Chair, Green Roofs for Healthy Cities.

Dr. Coffman is an Associate Professor and Director of the Novel Ecology Design Lab at Kent State University where he specializes in the conceptualization and performance of living architecture. He is the Chair of GRHC Research Committee, Editor of Journal of Living Architecture, and recognized designer and scientist. His collaborative research can be viewed in various journals including Water Environment Research, Science of the Total Environment, Bioscience, Urban Habitats, Journal of Living Architecture, and the Journal of Green Building.

Session 17 - In the Field With...

Maintenance Contractors


Christian Mahlstedt, President, Ginkgo Sustainability Inc.

Christian Mahlstedt, BA, MBA, GRP, LEED AP, is the President and Founder of the Toronto-based Ginkgo Sustainability. He is driven by their mission to connect the living and built environments through the installation of living roofs and the installation and manufacture of living walls.

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Andrew Sliwa, Regional Account Manager, John Mini

Andrew holds a Bachelor’s degree in Plant Sciences from Cornell University, with an Honors degree for Distinction in Research, focusing on understanding sustainable nutrient inputs in turfgrass systems.

Andrew oversees 300 locations throughout the city, ranging from luxury residential terraces to large corporate campuses such as the Brookfield Place. 

Session 23 - In the Design Studio With...

Ramboll Liveable Cities Lab

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Herbert Dreiseitl, Director, Ramboll Liveable Cities Lab

Herbert Dreiseitl is an internationally highly respected expert in creating Liveable Cities around the world with a special hallmark on the inspiring and innovative use of water to solve urban environmental challenges, connecting technology with aesthetics, encouraging people to take care and ownership for places. He has realized groundbreaking contemporary projects in the fields of urban design, urban hydrology, water art, stormwater management, planning and landscape architecture like Berlin Potsdamer Platz with Renzo Piano, Tanner Springs Park Portland OG USA, Bishan - Ang Mo Kio Park in Singapore. He lectures worldwide and has authored many publications including three editions of Waterscapes. As the Director of the “Liveable Cities Lab” the new thinktank at the Rambøll Group International (LCL) and as founder of Atelier Dreiseitl he integrates the organization´s strategic design and planning efforts by demonstrating a portfolio of site-responsive interventions of urban planning, hydrology and environmental engineering. He is a Harvard GSD Loeb Fellow and visiting Professor at NUS Singapore. To better reach out for cities in demand in May 2017 Herbert opened a new office in Boston.

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Bettina Wanschura, Consultant, Ramboll Liveable Cities Lab

Mrs. Bettina Wanschura is Managing Consultant at Rambølls Liveable Cities Lab (LCL) with a focus on consulting cities and regions for a future oriented development that meets the needs of the inhabitants. Bettina is engaged in research projects focusing on blue-green urban infrastructure, its cost-benefits and added values these infrastructures mean to cities.

Session 24 - Lessons in Green Infrastructure Policy Implementation

Growing Pains in Green infrastructure policy - making mounds out of molehills?

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Wendi Goldsmith, Director, Centre for Urban Watershed Renewal

A pioneer in green infrastructure, Dr. Goldsmith has supported local, state and federal agencies to carry out water resources engineering projects accommodating or harnessing natural processes. She is a Yale trained geologist with three decades of experience guiding communities and engineering teams to adopt measures for sustainability and climate change

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Jeromie P. Lange, Senior Principal, Maser Consulting P.A.

Jeromie Lange, PE, PP, CME, CFM, EXW is a Senior Principal with Maser Consulting P.A., a leading consulting engineering firm serving multiple geographic regions of the United States.   He has over 24 years of diversified experience in land development and stormwater management including brownfield redevelopment, industrial, office, residential, mixed-use development, and retail. This experience includes land planning, green infrastructure design, watershed modeling, and floodplain management in connection with land development.   Mr. Lange is an active member of the New Jersey Builders Association (NJBA) / NJ Future Developers' Green Infrastructure Task Force, NJBA Environmental Affairs Committee, American Society of Civil Engineers, National Society of Professional Engineers, New Jersey Society of Professional Engineers, and Ocean County Society of Professional Engineers. He is a graduate of Rutgers University and is a Licensed Professional Engineer and Professional Planner in the State of New Jersey.  He is also a Certified Municipal Engineer, Certified Floodplain Manager, and has been designated as an Engineering Expert Witness by the American Council of Engineering Companies.

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George Vallone, Co-founder, Hoboken Brownstone Company

In 1980, George and his business partner Daniel Gans co-founded the Hoboken Brownstone Company, (HBC). Together they have developed pioneering residential and commercial properties valued at over a billion dollars. HBC has renovated 100+ year old brownstones, row houses, a historic bank building, has built mid- & hi-rise condominiums, and 1,000 affordable homes. HBC specializes in environmental remediation and adaptive re-use of large industrial sites. This work requires familiarity with hazardous contamination issues, government agencies, policy makers, and public-private partnerships.  HBC’s work has been recognized with two Historic Preservation Awards, The 2010 NJ Future Award for Best Mixed-Use Project, and the NJ Governor’s 2010 Environmental Excellence Award.

George is past President of the New Jersey Builders Association and a Life Director. He is also the founding Chairmen of NJBA’s Mixed Use Developers Affiliate (MXD). The members of MXD are responsible for building approximately 75% of all multi-family developments in NJ.

Session 29 - In the Design Studio With...

T.R. Hamzah & Yeang Sdn Bhd


Dr. Ken Yeang, Principal, T.R. Hamzah & Yeang Sdn Bhd

Dr. Ken Yeang is recognized as one of the top 50 people that could save the planet.

Ken Yeang is an architect, planner and ecologist who is best known for his signature green architecture and masterplanning, differentiated from other green architects by their authentic ecology-based approach, by their distinctive green aesthetic and green performance beyond conventional rating systems. He trained at the AA (Architectural Association, UK) and received his doctorate from Cambridge University (UK) on ecological design and planning. His key buildings include Solaris (Singapore), Menara Mesiniaga (Malaysia), Spire Edge Tower (India), Genome Research Building (Hong Kong), Great Ormond Street Children’s Hospital Extension (UK). He is principal of Hamzah & Yeang with offices in Malaysia, UK and of North Hamzah Architectural and Engineering Company in China. He is a recipient of the Malaysian Institute of Architects Gold Medal, the Government of Malaysia Merdeka Award and the Architectural Society of China Liang Sicheng Award 2016. The UK Guardian newspaper named him as one of 50 individuals who could save the planet, and he is named by CNN as the leading architect in ecological design.

Session 30 - Keys to Green Infrastructure Implementation 

Scaling up green infrastructure implementation in Washington, DC through Stormwater Retention Credit Trading: A hands-on simulation.

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Nathaniel Lichten, Environmental Protection Specialist, District of Columbia Department of Energy and Environment

Nathaniel Lichten is an Environmental Protection Specialist in the District of Columbia Department of Energy and Environment, where he supports programs providing financial incentives for GI development in the District. He joined DOEE in 2017 and holds a Masters in Environmental Policy and Planning from the University of Michigan.

Living architecture performance tool workshop


David Yocca, GIF Board Chair; Senior Landscape Architect/Ecological Planner, Biohabitats

During his over 30 years’ experience in ecologically-focused planning and design practice, David has served a significant leadership role in a wide array of restorative projects and efforts, including the celebrated Chicago City Hall Demonstration Green Roof, one of the nation’s first ecological green roof applications, and one of North America’s first comprehensive green street demonstration projects in West Union, IA. Home-based in Grand Rapids, MI, David oversees Biohabitats’ landscape architecture and planning disciplines in the western Great Lakes and upper Midwest regions.

Rohan Lilauwala, GRP, Project Manager, Green Roofs for Healthy Cities

With a background in urban planning and landscape design, Rohan is passionate about finding creative problems to contemporary urban solutions, especially by reconciling the natural and build environments. At at the Green Infrastructure Foundation, he manages and has developed programs including the Education, Engagement, and Valuation Program - focusing on building green infrastructure capacity - and the Living Architecture Performance Tool, a performance rating system for green roofs and walls.