. Warranties
(Full System + Overburden)
| Johns Manville | SBS, PVC, EPDM, TPO |
| The Barret Company | Hot Rubber |
| IKO | SBS, PVC |
| Kemper System | Cold Applied |
. Warranties
(Full System + Overburden)
A green roof warranty is essential for protecting your investment. We have options available to meet the needs of your project.
We provide vegetated roof system hard parts, media, plants and warranty (sample warranty agreement). We also provide an optional ‘Overburden Warranty’ covering the cost of removing and replacing the vegetated roof system, pavers, and pedestals in the event of a roof issue.
Single Source Warranty
We partner with leading roof membrane manufacturers to offer a complete solution for every type of roof construction. These partnerships allow us to offer single-source warranties, which cover both the roof and the vegetated roof system together.
Single Source Warranty Partners
| Johns Manville | SBS, PVC, EPDM, TPO |
| The Barret Company | Hot Rubber |
| IKO | SBS, PVC |
| Kemper System | Cold Applied |
Green roofs, also known as eco-roofs or vegetated roofs, are increasingly common. They are known as a great way to make a bleak space aesthetically pleasing and increase property demand and value. However, there are other benefits that come from the implementation of green roofs.
The largest impact that green roofs have is on stormwater management. Continued expansion of urban development throughout the world has resulted in increasing amounts of impervious (hard) surfaces. These impervious surfaces decrease both infiltration and evaporative water loss from soils and plant surfaces due to the removal of native vegetation and natural ecosystems. In addition, pollutants deposited on these surfaces run off into our rivers and streams; further degrading water quality and surrounding natural habitats. Columbia Green’s products significantly decrease stormwater runoff, while also creating more energy efficient and sustainable buildings.
Green buildings and green roofs are increasingly viewed as a solution to help mitigate the threats and concerns surrounding climate change, water quality and the expanding gap that exists in energy supply and demand. The application of a green roof can help to reduce energy costs related to heating and cooling through their insulating effects, providing the building owner with year round energy savings. Green roofs that are combined with solar panels have also been shown to produce even greater energy benefits due to increased panel efficacy that help contribute to lower a building’s overall energy consumption and environmental footprint.
The concept of urban heat island effect is gaining more attention throughout the U.S. and as a result there is more pressure to more directly address this issue and mitigate its effects. Generally, urban heat island describes a buildup of atmospheric gases, usually in a metropolitan area, that is hotter than the surrounding rural areas. This occurrence can affect communities and cities by increasing energy demands in summer months: increasing air conditioning costs, and heightening the occurrence of heat-related illness and fatalities. Green roofs can play an integral role in mitigating those negative effects through the ability to lessen the amount of gases that warm the atmosphere and therefore cool the surrounding environment.
Developers and design professionals are also increasingly looking to green roofs for the benefits they provide as a way to create more sustainable green buildings, with lower carbon footprints and a greater ability to manage stormwater runoff. These benefits also extend to the building owner through increased building aesthetics and a potentially higher LEED Certification rating. The application of a green roof helps to contribute from 6 to 14 LEED points for sustainable building structures, while buildings with white membranes alone, qualify for only 1 to 2 LEED points.
Buildings with green roofs also help to extend the life of the roofing membrane; up to 2 times in many cases. This lowers replacement and repair cost to a building owner, thus reducing direct capital investments.
The green roof industry is continually growing and further benefits continue to develop as groups within the green building community push the envelope as to what this technology can provide. Green roofs are also seeing support from governments across the globe. Governments worldwide have begun to adopt strategies of incentivizing green initiatives and enforcing minimum standards that support the development of green buildings. Some incentives available for installing a green roof system include: tax incentives, zoning expansions and direct public utility rebates/monthly billing reductions.
Business Development Manager for CA
Chad Bouck, a seasoned Business Development professional with over 15 years of experience, has followed a remarkable career trajectory. Starting with Associa Professional Management, where he excelled in HOA and commercial property management Business Development, consistently increasing revenue and optimizing operations. Continuing his journey, Chad Bouck joined BrightView, a leading landscape company, where he demonstrated his expertise in expanding the client portfolio through industry knowledge and strategic insights. Subsequently, Chad Bouck made significant contributions to Andre Landscape, securing his position as the leading Business Development Manager within an impressive three months, showcasing his exceptional talent for client acquisition and results-driven performance. Chad Bouck is excited to embark on a new adventure as the Business Development Manager for the California region at Columbia Green Technologies. With a proven track record in strategic planning, market analysis, and client relationship management, Chad Bouck is poised for continued success in this exciting new role.
HR & AP Specialist
A proud native of Montana, Kati brings her unique perspective and extensive expertise to her role as HR & AP Specialist at Columbia Green Technologies. With a degree in Sociology from the University of Montana, Kati’s professional journey into the realm of human resources and administrative processes has encompassed over 15 years of hands-on experience in operational oversight, talent acquisition, and comprehensive support roles.
Outside of her professional endeavors, Kati spends most of her time with her husband Jonathan, her daughter Maggie, and a plethora of pets with food-inspired names. She enjoys walking the dog, planning the next home improvement project, and taking long summer scooter rides with her family.
Regional Sales Manager / Midwest
Samuel Irwin joins Columbia Green Technologies with 10 years of experience in green infrastructure and 20 years business development experience in construction supply. He is passionate about collaborating with ownership, design, engineering and construction professionals to build more resilient cities. Sam understands that the earlier green infrastructure is considered by all relevant parties, the better the result for the project and the surrounding environment. He strives to operate with integrity and respect for people and the process for the betterment of each project.
Having been brought up in New Zealand and now been in the US for almost 10 years he brings an international flair to the green infrastructure space – it is a global effort! Sam is a proud husband to Heather and father to Fred. Outside of work, you’ll find him racing sailboats on Lake Michigan, playing golf, watching sports and visiting wineries, breweries and restaurants across this great land. Sam is ready to dig into your next project to find advantages utilizing functional landscapes and to realize cost efficiencies to maximize the shift from grey infrastructure to green infrastructure.
One project at a time. Let’s do this.
Strategic Sales
Jesse Rosenbluth brings over 15 years of experience in business development and sales within the environmental and landscaping industries. His career spans a diverse range of projects, including wetland categorization in Ohio, watershed advocacy in Oregon, farm management in Michigan and Illinois, and leading green infrastructure initiatives on structures across the nation.
Passionate about merging science and design, Jesse is dedicated to creating resilient landscapes that enhance the built environment. He works closely with project teams from concept to completion, ensuring that design and living systems integrate seamlessly to foster healthier, happier communities.
Jesse has served as Chair of the Sustainable Sites Technical Advisory Group for the U.S. Green Building Council, contributing to the development of the LEED v5 rating system. He was also a member of ULI Boston/New England’s Climate Resiliency Committee, where he helped publish the groundbreaking Living With Heat report. His leadership and expertise continue to drive innovation in sustainable site development and advance the mission of building a greener, more resilient future.
Sales Manager / California
Dalton Jasso is an accomplished Sales Executive and Business Developer with over 17 years of experience. Since 2019, he has made significant strides in the green commercial landscape industry, starting with BrightView Landscape Services, where he excelled in business development and sales, increasing revenue and optimizing operations throughout Southern California. Recognized for his contributions, Dalton was appointed to the BOMA OC Board of Directors and served as Director of the Young Leaders Committee for 2023/24.
He then joined Andre Landscape, a Top 100 Landscape Company, where he launched and grew their CRE landscape maintenance division in Southern California. At SouthWest Landscape Inc., Dalton advanced to Manager of Business Development & Sales, driving millions in new growth and opportunities.
Known for his exceptional work ethic and ability to build lasting relationships, Dalton is excited to become the Sales Manager for California at Columbia Green Technologies starting in July 2024.
Regional Sales Rep – OR/WA
Erik Svensson joins Columbia Green Technologies with over 10 years in the landscaping and horticultural industry. He has worked to build long-term client and business relationships for 20+years. Before joining Columbia Green, he ran and owned his own company in Sweden providing horticultural eco-friendly product to the turf and plant industry.
Erik is a graduate of Bond University in Australia with a BS in Sports Business Management. Outside of work, Erik enjoys spending time with his wife and two kids camping, visiting new places, traveling, and going to sporting events.
Logistics Coordinator
Eric comes to Columbia Green Technologies with several decades of logistics and diverse business experience. As Logistics Coordinator, he is here to make sure the complexity of getting all material to the site and on time are as smooth and transparent as possible. Prior to joining CGT, Eric worked in various industries focusing on domestic and international logistics, purchasing and management of key accounts. Eric has a true passion to make a positive environmental impact and is eager to help establish green infrastructure projects all over.
Eric graduated from Concordia University with a B.S. in Business Management. When he is not arranging your green roof delivery he can be found, cooking for friends and family, golfing or cheering for the Portland Timbers.
Regional Sales Rep – D.C./MD/VA
Justin is the Regional Sales Representative for Washington, D.C., Maryland, and Virginia. He brings over two decades of experience as a Principal in the largest full-service design build firm in the DC Area residential remodeling market. Justin’s leadership and expertise have been recognized through numerous industry awards. The cornerstone of his success lies in prioritizing customer satisfaction and staying connected to the local community.
Justin earned an MBA from James Madison University.
Vice President / COO
Deni Herndon is Vice President and Chief Operating Officer of Columbia Green Technologies, Inc. and has over 30 years in accounting, management, and operations. For the past ten years, she has acted as a strategic partner to Columbia Green Technologies CEO Vanessa Keitges, most recently as COO, helping to propel long-term financial growth, championing culture, and helping to drive forward the company’s vision to create green resilient cities and eco districts with green infrastructure.
In addition to her work with Columbia Green Technologies she has served as a member of executive management teams and provided analytical support regarding strategic decisions on acquisitions, expansions, staffing and other corporate development possibilities. She has been a part of large publicly held companies and small startups where she has orchestrated dramatic improvements in operational efficiency, productivity, and internal communications.
Deni is Certified Public Accountant licensed in both Oregon and Washington. She also holds the designations of CGMA and CFF and is an active member of the AICPA and ORCPA.
Email: DeniH@columbia-green.com
Inside Sales Representative – Mid Atlantic Region
Kelly is a member of Columbia Green’s Mid Atlantic team, based in Baltimore, Maryland. As the Inside Sales Representative, she works closely with the Regional Sales Rep and Business Development Manager to grow DC, MD, and VA territories, and to work with green roof installers as they partner with Columbia Green. Kelly comes to CGT with a background in residential roofing and exteriors sales in Baltimore City. She previously worked in higher education administration. A graduate of Loyola University Maryland, Kelly holds a B.A. in Global Studies, having specialized in political science and China/Chinese language. Though new to working in the green infrastructure industry, she brings a passion for urban renewal and city living. Outside of work, you can find her enjoying a concert, brewery, or new restaurant in Baltimore and beyond.
Marketing and Inside Sales
Riley is a graduate from Portland State University and is an emerging marketing professional with a B.S in Marketing. Riley assists with inside sales and marketing to build connections with potential customers and sales representatives. She utilizes her excellent writing and documentation skills to aid in her current role. Riley continues to learn and improve her business skills. Outside of work, she enjoys spending time in the gym or hiking outdoors.
Regional Sales Rep for CA
Beau joins Columbia Green as the Regional Sales Rep for CA. Beau has an extensive background in the construction industry and in green building products. He served as an installer, construction manager and most recently in sales for an agriculture solar company. He owns a sustainable fire suppression and weed control business where he uses goats and sheep to keep vegetation down in high fire risk areas as well as all types of land with overgrown vegetation.
Beau played college soccer and graduated from Sonoma State. He then went on to play professional soccer at Fresno Fuego. He is passionate about sustainability and has a love for nature and the great outdoors.
California Regional Sales Manager
Brett joins Columbia Green as the Regional Sales Rep for the DC, MD, and VA territories. Brett has an extensive background in sales and sales management. He has worked in several different industries from, automotive to landscaping and brings a well rounded prospective to the green industry.
Brett studied business at Montgomery College for a few years before deciding to jump straight into the work force and take a hands-on learning approach. He’s risen through the ranks of every company that he has worked at accomplishing record sales numbers and multiple awards like is Top 100 sales reps for Interstate Batteries, and the Branch Impact award at Classic Landscaping.
Brett has proven that his passion for sales and helping people is an effective route to being a successful professional.
Vanessa has a dynamic 9-year global career reflecting optimal performance in the public and private sector in the area of business development, marketing and sales. Vanessa has served in numerous executive positions in business development roles, where she has managed rapid growth; both domestically and internationally. She has been responsible for triple digit increase within the companies she has worked for where she has played a leading role in the sales groups.
Vanessa is currently President & CEO of Columbia Green, whose core technologies in eco-roofs are based on sustainable functions that help manage the quality and quantity of storm water, energy use, as well as air and water pollution. Vanessa purchased the company along with local investors in 2009 and Columbia Green is currently experiencing significant growth under her leadership.
Ms. Keitges graduated from Oregon State University earning a B.A. in Philosophy. Her personal interests include: riding horses, traveling and meeting new people. She has an affinity toward kids and animals and sits on the Oregon Zoo Wild Life Board. Her true passion is helping others within her community.
President / CEO
Vanessa Keitges is President and CEO of Columbia Green Technologies, a global leader in the green roof market industry. Her focus is to provide green roofs and green amenity spaces a nature-based solution to assist with the impact of the ever-changing climate while promoting sustainability and wellness, thus supporting building owners and cities with building resilient communities for the future. Her focus is to ensure positive returns on building owners long-term ESG investments with their portfolio. Her and her team are committed to creating a positive environmental and social impact by building vibrant, resilient cities and replacing aging infrastructure with green infrastructure.
In addition to her work with Columbia Green Technologies she has served in numerous executive positions in business development, marketing, and sales, where she has managed rapid growth; both domestically and internationally. Vanessa purchased Columbia Green, along with local investors, in 2009 2010 and the company is currently experiencing significant YOY growth under her leadership with over 2,500+ green roof installs and offices Coast to Coast.
In the fall of 2013-2017 Vanessa was appointed to President Obama’s Export Council with the top 27 Fortune CEO’s to represent the interest of “emerging” businesses in the green infrastructure & green building sector. She reported to the President every 6 months on the growing industry and how to support USA companies to meet the growing demand of the green building market around the World. Vanessa was a top “40 under 40″ executives in Oregon, one of Oregon’s fastest growing private companies by Portland Business Journal & nominated by Forbes as one of the top 5 women in technology to watch and invest in. Vanessa graduated from Oregon State University earning a B.A. in Philosophy.
Sales Director
Kevin Bower rejoins Columbia Green with more than twenty years of horticulture and business management experience. As Sales Director, Kevin brings multi-disciplinary teams together to successfully implement eco-roofs for building owners, general contractors, landscape architects and installers. His understanding of environmental impact, site conditions, and extensive plant knowledge provides superior value to our clients by ensuring quality project delivery, installation of eco-roofs and warranty protection for the owner.
Kevin is a graduate of Virginia Polytechnic Institute and holds a B.S in Horticulture, with a concentration in Business Management. His professional and educational background makes him a strong addition to the team and we are happy to have him back.
Outside of work Kevin enjoys adventuring around the Pacific NW with his wife Emily and two daughters Adeline and Lilia.
Senior Business Development Manager
Valerie Irons comes to Columbia Green Technologies with more than 13 years of combined construction, design and landscape experience. She has served in a variety of roles with different contractors in the DC Metro region. Most notably, she served as a Commercial Business Development Manager for one of the largest landscape maintenance contractors in the DC Metro area.
Valerie firmly believes in the power of relationship building, being a great resource of knowledge and sharing experiences (success and lessons from both the landscaper and design perspective) and giving back to the community. She has been involved with many associations over the years and served as Co-Chair of the Potomac Watershed Clean-Up Committee for 4 years. She also won a Rising Star Award from the Washington Metropolitan Chapter Community Associations Institute in 2018 for her volunteer efforts on behalf of the Association.
West Coast Technical Sales and Support
Ellen Barlow supports landscape contractors in everything from budgeting and quoting projects to submittal packages. She enjoys giving presentations on Columbia Green’s products to the design community and assisting team members on strategy. Ellen enjoys getting into the technical side of green roofs and offering VE solutions to general contractors, architects, and landscape architects. Her background in environmental science allows her to understand the importance of green infrastructure and its beneficial impacts. Ellen’s #1 goal is to provide the highest level of customer service to her clients.
Ellen is a graduate from the University of Redlands in Southern California with a Bachelor of Science degree in Environmental Policy and Management with a Spatial Studies minor. She focused on sustainability issues as well as environmental science and computer mapping software. She also completed an internship in Costa Rica, studying sustainable tourism development and biodiversity. In her free time, Ellen’s favorite activity is hanging out with family and friends. She enjoys going to music concerts, skiing, running, and fashion. Invite her to your next event! She loves meeting new people and talking green roofs.
Email: ellenb@columbia-green.com
Program Manager
Paul brings a decade of experience in purchasing and logistics to the Columbia Green team. As Program Manager, he is here to source materials for your green roof, ensure their timely delivery, and to facilitate a smooth project. Having experience in leveraging long-term spend while factoring quality into the total cost of ownership, he will work with you to determine a green roof solution that works best with your resources and constraints. Paul comes from the MRO and Food & Beverage industries where he has established a proven track record of streamlining supply chains and creating efficiencies.
Paul holds a Masters degree in Supply Chain Management from Penn State University.
Email: paulm@columbia-green.com
Technical Director
Andrea brings 12 years’ experience as a landscape architect to the Columbia Green team. As Technical Director she is here to answer all your questions related to our green roof systems, and to provide design guidance and product support to specifiers, design professionals, and product installers. Andrea is a registered Landscape Architect with a focus on low impact development and green infrastructure, and is well versed in all phases of project design, construction and maintenance.
A Pacific NW native, Andrea earned a Bachelor’s Degree in Landscape Architecture from University of Oregon. She practiced landscape architecture in Portland, with a focus on green design solutions for a diverse range project types and scales.
Email: andreas@columbia-green.com
NE Sales Manager
Kyle Faron comes to Columbia Green Technologies with over 10 years of experience as a construction professional. His focus has been on delivering value with sustainable building envelope products and solutions for building owners and developers, with a concentration on occupant comfort and well-being. Sustainable standards and occupant well-being are important drivers today as we seek to build better, smarter, and more efficiently. Over his career he has sought to develop strategic partnerships with key accounts in the construction industry, including developers, architects-engineers, construction managers-consultants, and general contractors. In his role in the Northeast, Kyle looks to deliver value as a trusted partner and to highlight return on investment to all members of a project team.
Kyle is a central New Jersey native and graduate of Monmouth University in West Long Branch, NJ with a B.S. in Business Administration. His personal interests include enjoying the outdoors with his family, sports, and honing his golf game on the course.
Senior Program Manager
Jordan comes to Columbia Green Technologies with a decade of a variety of construction experience. As Senior Program Manager, she is here to find the best pricing for your vegetative roof assembly projects by site specifications, cost changes, and additions, while ensuring all sourced materials for an efficient, sustainable, and punctual delivery. Prior to joining CGT, she worked in quality control as a CAT1 Lab Technician for an asphalt paving company, where she tested materials per ASTM/specification standards. She also worked as a quality assurance inspector for a material testing lab. She has a strong passion for green infrastructure and is determined to obtain the best solution for your specific project.
Jordan graduated from The Evergreen State College with a B.A./B.S. in Environmental Science. She loves spending time with her family and friends, traveling, gardening, concerts, and anything outdoors!
Marketing Manager/NE Sales Rep
Janelle’s roles are both Marketing Manager & NE Sales Representative at Columbia Green Technologies. She spent most of her career working within the sustainability sector for financial organizations. Prior to joining Columbia Green Technologies, Janelle worked as a Marketing Analyst for Equilibrium Capital Group, a company focused on building leading investment products and strategies for institutional investors.
Janelle assists the Columbia Green team to promote our products, services, and brand. She is responsible for lead generation, develops and executes our marketing campaigns, coordinates trade shows and events, and oversees our social media accounts. She also oversees sales for our NE Region to provide excellent service for our clients throughout the design, budget, quoting and submittals process of their project.
Janelle graduated from Southern Oregon University earning a B.S. in Psychology. Her personal interests include spending time with her family and friends, traveling, hiking, camping, and baking.
Email: janellec@columbia-green.com
National Business Development Manager
Kevin Goad comes to Columbia Green Technologies with a background in Business Development and Sales with more than 20 years of professional experience in the Environmental, Energy and Sustainability industries. He has worked with building owners across the country to help them reduce their energy and carbon footprints and decrease their overall operating costs. Kevin understands the importance of the return on investments for building owners when it comes to building improvements and the overall value that green roofs bring to the building, the owners, occupants and communities. He is here to help guide and build relationships with Owners, Developers, Architects, Landscape Architects, General Contractors, Roofing Companies and Installers.
Kevin is a graduate of the University of Houston and holds a B.S in Environmental Management, with a concentration in Marketing. Kevin also is a member of USGBC and is a LEED Green Associate. His professional and educational background makes him a strong addition to the Columbia Green Technologies team.
Email: keving@columbia-green.com
Staff Accountant
Aaron is a graduate from Vassar College with a B.A in Mathematics. He assists Columbia Green with accounting and financial records. As a Staff Accountant, Aaron hopes to expand his duties by being certified as a Chartered Financial Analyst in the future to better understand investment management. Outside of work, he enjoys playing recreational basketball and exploring the Pacific Northwest.
Location: Houston, TX
Project Size: 20,000 s.f.
Owner/Developer: Hines
Architect: Kendall/Heaton Associates
Landscape Architect:The Office of James Burnett
System: Intensive/Plaza Deck
Year: 2015
Location: Chicago, IL
Owner/Developer: City Colleges of Chicago
Architect: Moody Nolan
Landscape Architect: Hitchcock Design Group
Green Roof Installer: Speedy Gonzalez Landscaping
System: Layered
Year: 2015
Location:New York, NY
Landscape Architect: Christian Duvernois Gardens, Inc.
System: Layered
Year: 2014
Location: Seattle, WA
Architect: Clark Design Group
Landscape Architect: Cascade Design Collaborative
System: Tray & Layered
Year: 2012
LEED Gold
Location: Vancouver, BC
Architect: Bing Thom
Landscape Architect: Phillips Farevaag Smallenberg
General Contractor: Turner Construction
System: Tray
Year: 2012
Historic Hancock Tower
Location: Boston, MA
Landscape Architect: Mikyoung Kim Design
Owner/Developer: Boston Properties
System: Pre-Grown Tray
Year: 2015