Matthew Barmore


Greenrise Technologies

Matt Barmore serves as Vice President at Greenrise Technologies, LLC, located in the Nashville, TN, area, and as the Board Chair of Green Roofs for Healthy Cities (GRHC), the North American green roof and wall industry association, based in Toronto, ON. At Greenrise, Matt leads the Sales & Estimating teams, and serves as National Sales Director for Greenrise’s consolidated family of companies. Greenrise serves its customers in the design, supply, installation, and maintenance of green roofs and amenity decks throughout the U.S., from offices in the metro areas of Nashville, TN, Washington, DC, Charleston, SC, and Tampa, FL.

Matt joined Greenrise after more than a decade at Firestone Building Products, where he held progressive roles as Mid-Atlantic Technical Coordinator, Strategic Account Executive, Roof Solutions Department Manager, Estimating Services Department Manager, and as Product Marketing Manager, Sustainable Systems. He has participated in a variety of capacities on green roof projects across North America and is an accredited Green Roof Professional (GRP). He joined the board of directors of GRHC in 2014, serving as Corporate Members Committee Chair, and was elected Board Chair in 2018. He has spoken about green roofs at regional and national conferences of IIBEC (RCI), NRCA, AIA, ASLA, PIMA, and GRHC, and at numerous architecture and engineering firms across the U.S. and Canada.

During his military service as an officer in the U.S. Air Force and Air National Guard, Matt was deployed in support of combat operations for Operation ENDURING FREEDOM, Operation IRAQI FREEDOM, and Joint Task Force HORN OF AFRICA. His degrees include the Bachelor of Science from Indiana State University, and the Master of Divinity from Bethel Theological Seminary; he is currently completing the Green MBA program at The San Francisco Institute of Architecture.


Jeffrey Bruce


Jeffrey L. Bruce & Co, LLC

Jeffrey L. Bruce, FASLA, is Owner of Jeffrey L. Bruce & Company (JBC) a national landscape architectural firm. Founded in 1986, JBC provides highly specialized technical support to many of the nation’s leading Architectural and Landscape Architectural firms on a wide variety of project profiles including engineered soils, green roof technologies, urban agronomy, performance sports turf, and irrigation engineering.

Mr. Bruce’s accomplishments, commitment and vision are well documented. He has received over 60 separate design and leadership awards. Award winning projects of his firm, Jeffrey L. Bruce & Company, have been published 85 times. He is licensed to practice in 20 states and has served as an invited lecturer, visiting critic, and speaker at numerous conferences and trade shows. In 1996, Mr. Bruce was elected Fellow of the American Society of Landscape Architects. He is a board member of the American Society of Irrigation Consultants and Green Roofs for Healthy Cities. Mr. Bruce is a LEED accredited professional and is a certified irrigation designer. He was a founding member of Sports Turf Committee for the National Interscholastic Association of Athletic Administrators.


Reid Coffman

Chair, Research Committee

Kent State University

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.


Melissa Daniels

Co-Chair Green Walls Committee

Plant Connection

Melissa Daniels, CNLP, has been in the nursery and landscape business for over twenty years and is the owner of Plant Connection, Inc. Mrs. Daniels represents the Long Island horticultural industry on the Long Island Invasive Species Management Association review committee, she is the co-chair of the GRHC Green Walls Committee, and is a Founding Member of Living Architecture New York.


Joe DiNorscia



Since 2005 Joe has been the President and Managing Director of Skyland USA LLC, the creators of the rooflite® brand of green roof media products.  Joe also acts as the General Manager of Laurel Valley Soils, one of the largest producers of compost, manufactured topsoil’s, and custom blended mixes for the landscape and horticultural industries in the Mid-Atlantic area of the United States. In

Joe’s goals, as well as those of Skyland’s are to continue to be the leader within the green roof industry in producing innovative green roof media products.  Ultimately, they want to be recognized by their customers as not just a supplier, but as partners in their customers goals. In striving for these benchmarks Skyland will always do so with the utmost integrity.


Elizabeth Hart

Co-Chair, Green Roof Professional Committee

Green Roof info Think-tank

Elizabeth Hart, CDT, GRP, is the Executive Director of the Green Roof info Think-tank. Elizabeth is experienced in all phases of commercial, municipal and private vegetated roofing – from the promotion, conceptual design and specification through procurement, installation and maintenance. She works with architects, landscape designers, contractors and building owners to ensure each unique vegetated roofing system functions as intended.


Hamid Karimi, PhD

Chair, Policy Committee

Government of the District of Columbia

Dr. Karimi has more than 25 years of experience in environmental management and is currently the Deputy Director of the District Department of Energy and the Environment. In this capacity, he oversees a number of programs: Stormwater Management Division, the Fisheries and Wildlife Division, the Watershed Protection Division, and the Water Quality Division. The programs he manages address very wide-ranging environmental issues, such as: administering the MS4 stormwater Permit; development and implementation of TMDLs; regulation and management of wetlands and groundwater; construction inspection and enforcement (sediment & erosion control); stream as well as Anacostia River restoration; pollution prevention; management of an extensive monitoring network; Chesapeake Bay restoration and the Anacostia River Partnership. He has worked on development of regulatory processes on stormwater utility, and pollution control.

Dr. Karimi has published and made presentations extensively in national scientific and environmental forums. He is a long standing commissioner on the Interstate Commission on the Potomac River Basin. Dr. Karimi is a member and past chair of a number of environmental committees at Metropolitan Washington Council of Governments in the Washington, DC area.


Michael Krause

Co-Chair, Green Infrastructure Foundation

Kandiyohi Development Partners

Michael Krause is the President and Director of Strategy and New Projects at Kandiyohi Development Partners, LLC. Kandiyohi is a development and consulting firm in Minneapolis focused on urban redevelopment, green buildings, renewable energy, and clean technologies. Kandiyohi are members of the US Green Building Council.

Mr. Krause comes from a history in environmental and policy work, including working for nine years as the Executive Director of Minneaopolis’ Green Institute as well as working on the policy staff of local and regional governments in Hennepin County and Minnesota. Previous to that, Mr. Krause was an editor, publisher and award winner columnist with the Weekly News, Inc. – a Minneapolis newspaper chain.

A graduate of the University of Minnesota Law School Mr. Krause has worked with a variety of organizations, including: Minneapolis Planning Commission, Minnesota Environmental Initiative, Eco-Industrial Development Council (formerly Cornell Eco-Industrial Roundtable), International Solar Cities Congress and the U.S. Green Building Council, among others.


Peter Lowitt

Immediate Past Chair

Devens Enterprise Commission

Peter C. Lowitt, AICP was excited to be the Chairman of Green Roofs for Healthy Cities. For his day job he serves as Director/Land Use Administrator for the Devens Enterprise Commission, the agency charged with permitting the redevelopment of the former Fort Devens army base in Massachusetts. At Devens, Mr. Lowitt focuses on the sustainable redevelopment of this 4400-acre former army base. In this capacity he has developed the EcoStar environmental branding and achievement program to promote eco-industrial networking and green building. Prior to coming to Devens, Mr. Lowitt served as Director of Planning and Economic Development for the Town of Londonderry, New Hampshire (1993-1999) where he developed the Londonderry Ecological Industrial Park and the award winning Sustainable Londonderry Program.

Mr. Lowitt has been active in the planning and economic development profession, serving as past-Chair of the Economic Development Division of American Planning Association (APA), current President of the Massachusetts Chapter of American Planning Association, and is a former President of the New Hampshire Planners Association. He has published a number of articles and lectured on sustainable economic development in New Zealand, Thailand, the Philippines, Vietnam and Canada. He is fully committed to sustainable economic development practices through good planning. He has received the State of New Hampshire’s 1998 Excellence in Community Development Award and also received the 1998 WasteCap New Hampshire 1998 Environmental Excellence Award.


Christian Mahlstedt

Chair, Advanced Maintenance Committee

Ginkgo Sustainability


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.


Steven Peck


Green Roofs for Healthy Cities

Steven W. Peck, GRP, Honorary ASLA, is the founder and president of Green Roofs for Healthy Cities (GRHC), the North American green roof and wall industry association. Since 1996, he has worked to advance the green roof and wall industry by facilitating research and demonstration projects; organizing conferences and workshops; writing articles; judging award competitions; building institutional capacity; lecturing; publishing; and advocating for supportive policies and standards at all levels of government. In 1999 he began editing and publishing a quarterly green roof and wall magazine entitled The Living Architecture Monitor™. Mr. Peck has written and lectured extensively on the interrelationship between public policy, research and the socioeconomic benefits of living architecture, as well as on the topics of urban sustainability and industrial ecology.

In 2007 he co-founded the Green Infrastructure Foundation, the charitable arm of GRHC , dedicated to advancing all forms of green infrastructure. Mr. Peck also co-founded the Green Infrastructure Ontario Coalition in 2010 to lobby for living green infrastructure protection and investment in Ontario. Author of Award Winning Green Roof Designs (2008), and The Rise of Living Architecture (2012), Mr. Peck has spearheaded the development of the accredited Green Roof Professional (GRP) program and has co-written and/or edited the following resource manuals: Green Roof Design 101: Introductory Course (2004); Green Roof Design and Installation 201 (2006); Green Roof Policy Development (2006); Ecological Green Roof Design (2006); Green Roof Waterproofing and Drainage 301 (2007); Green Walls 101: Systems Overview and Design (2007); Green Roof Plants and Growing Media 401 (2008); Green Infrastructure: Policies, Performance and Projects (2009); Introduction to Integrated Water Management for Buildings and Sites (2010); Introduction to Rooftop Urban Agriculture (2010); and Advanced Green Roof Maintenance (2011).

In 2007, he co-founded the World Green Infrastructure Network with Dr. Manfred Koehler, an international coalition of green roof and wall associations dedicated to developing the living architecture industry world-wide.  Mr. Peck is optimistic about our collective ability to, within a generation, rapidly evolve the building industry towards producing restorative buildings and communities.

Mr. Peck is available for media interviews by calling


John Robinson


Sika Sarnafil

John Robinson has been with Sika Sarnafil for over 22 years. He currently holds the position of Education/Waterproofing Sales Specialist for the Southern Region. John has over 35 years of experience in the roofing and waterproofing industry and has held sales and technical positions with both national and regional firms. He is also one of the first Accredited Green Roof Professionals in the US. John is also an active member in many organizations including RCI, CSI, A4LE, and has served as President of the Atlanta Chapter CSI and for the Southern Region of CSI. He attended The University of Georgia and University of Central Florida, majoring in Business. He is an avid outdoorsman and currently resides in Johns Creek Georgia with his family.