20-21 April, 2015: SAVE THE DATE for the 4th International Green Roof Congress in Istanbul, Turkey!

October 30, 2014 at 4:03 pm

By Wolfgang Ansel


Where is there room for nature in towns?  This is a question that is increasingly being asked by building experts around the world who are faced with the challenges of urban densification.

Under the motto “Explore nature on rooftops,” successful solutions and practical green roof technology will be presented, discussed and taught at the upcoming 4th International Green Roof Congress in Istanbul on 20-21 April, 2015.  The latest achievements in science and technology will also be presented.

The congress, supported by the International Green Roof Association (IGRA), will be held at the Zorlu Center’s new Raffles Hotel in Istanbul, Turkey.

Join us for a top-level program with lectures and interactive practical workshops at the Congress venue Zorlu Center with its 72.000 m² of green areas on different levels.

Istanbul has been experiencing a rapid increase in population due to migration.  This means a very fast urban transformation process is taking place in the Mediterranean metropolis straddling two continents.  One of the main challenges of Istanbul’s green policy is increasing the number of green areas within the whole city.

Desired economic growth and rising land prices on the one hand, and the need for green infrastructure for urban quality of living and sustainable urban development on the other hand, have drawn attention to the city’s rooftops.

Investors have long since recognized that rooftop multi-use not only increases the value of a building, but also improves its attractiveness for leasing.  Because no additional land costs are involved, roof gardens are no more expensive than ground level gardens.

We look forward to seeing you at the 4th International Green Roof Congress in Istanbul!


Rooftop multi-use at its best – a green leisure area in Istanbul.

For more Information please contact the IGRA Secretariat, Sabine Früh, at:

International Green Roof Association
PO Box 2025; 72610 Nuertingen / Germany
Phone: +49 70 22 7191 980; E-mail: frueh@igra-world.com

– Wolfgang Ansel

WolfgangAnselWolfgang Ansel is a biologist and the Director of the International Green Roof Association (IGRA).  One of his main areas of work is implementing Green Roof policies and guidelines on an international level.  Wolfgang is co-author of different Green Roof books.  During the last years, he was an invited speaker at congresses in Europe, North America and Asia.

IGRA’s targets include the worldwide promotion of the ecological Green Roof idea, an international knowledge transfer in the field of Green Roofs and the stimulation of international standards for good practices and reliable Green Roof technology.

3rd International Green Roof Congress 2013 (Hamburg/Germany) Waterscapes, Landscapes, Roofscapes – Visionary Projects Presented by Award Winning Companies

April 11, 2013 at 9:05 am

By Wolfgang Ansel

Spectacular rooftop usage ideas - the sky is the limit (Copyright IGRA).

The 3rd International Green Roof Congress 2013 in Hamburg (13-15 May, www.greenroofworld.com) will provide a platform for a cross profession information exchange in the field of Green Roofs and Living Walls.  Some of the world ´s most innovative architects and sustainability experts (e.g. Peter Busby – Perkins+Will, Wong Mun Summ – WOHA, Jakob Lange – Bjarke Ingels Group, Martin Haas – Studio 2050 and Prof. Herbert Dreiseitl – Atelier Dreiseitl) will discuss the future of urban roofs with roof and façade greenery engineers, researchers and urban planners.

The lecture programme will be complemented by two hands-on workshops and excursions to green roof projects in the region of Hamburg.

In 2013 Hamburg also celebrates the International Garden Show, which covers more than 100 hectares, and the International Building Exhibition  with its ground-breaking sustainable buildings, like the “Water”-, “Hybrid”- and “Smart Material”- houses.  The “BIQ-House,” for example, is the first house in the world to have an algae façade that serves as a biochemical reactor, whereas the façade of the “Wälderhaus” has embedded plant-based nests for birds and insects.

Further highlights are the newly designed “Global Neighbourhood” and a climate protection concept which sets new standards with the “IBA Dock”, the “Energy Bunker” and the “Energy Hill Georgswerder.”

3rd International Green Roof Congress, in Hamburg, Germany

Spectacular landscaping and innovative architecture connected by green roofs – There is more than one good reason to visit Hamburg in 2013.  For more information please visit the congress website at:  www.greenroofworld.com.

~ Wolfgang Ansel
Tel.: +49 7022 / 7191980
E-Mail: ansel@igra-world.com

Wolfgang Ansel is a biologist and the Director of the International Green Roof Association (IGRA).  One of his main areas of work is implementing Green Roof policies and guidelines on an international level.  Wolfgang Ansel is co-author of different Green Roof books.  During the last years, he was an invited speaker at congresses in Europe, North America and Asia.  IGRA’s targets include the worldwide promotion of the ecological Green Roof idea, an international knowledge transfer in the field of Green Roofs and the stimulation of international standards for good practices and reliable Green Roof technology.


The 3rd International Green Roof Congress in Hamburg, Germany on May 13-15, 2013

March 28, 2013 at 10:58 am

Have you thought about attending the  3rd International Green Roof Congress  in Hamburg, Germany this May 13-15, 2013?  Aramis and I are.

3rd International Green Roof Congress in Hamburg, GermanyHosted by the  International Green Roof Association (IGRA)  and the German Roof Gardener Association (DDV),  the latest technological developments and new areas of application in the field of Green Roofs will be presented.

If you haven’t already, read this month’s Guest  Feature Article from IGRA Director Wolfgang Ansel – “3rd International Green Roof Congress – Hamburg Will Be the Showcase for Green Roofs in 2013.”

Waterscapes, Landscapes, Roofscapes –
Visionary projects presented by Award Winning Companies, including:

IGRA's International Green Roof Congress: Photo Copyright WOHA

Photo:  Copyright  WOHA

Breathing Architecture  – presented by Wong Mun Summ (Architect; Founding Director of WOHA, Singapore) – WOHA is Winner of the Green Good Design Award 2012

Green is the New Black  – presented by Jakob Lange (Partner and Project Leader at Bjarke Ingels Group – BIG, Denmark) – BIG is winner of the American Institute of Architects Honor Award for Architecture 2012

Urban Waterscapes – Rainwater in Urban Planning  presented by Prof. Herbert Dreiseitl (Landscape Architect, Town Designer; Atelier Dreiseitl; Germany, Singapore, China, USA) – Atelier Dreiseitl is Winner of the World Architecture Festival Landscape Price 2012

Based on their philosophy to integrate nature and architecture these and other experts will present some of the world’s most spectacular Green Roof projects (e.g. VanDusen Botanical Garden Visitor Centre*  – Vancouver, Newton Suites – Singapore, Potsdamer Platz – Berlin, Mountain Dwellings – Copenhagen, Zuidpark Rooftop Farm – Amsterdam).

*Don’t miss this week’s Project of the Week profile on the awe-inspiring  VanDusen Botanical Garden Centre.

 VanDusen Botanical Garden; Photo: Perkins+Will

Photo: Perkins+Will

Acknowledged international Green Roof experts from various disciplines will discuss the status quo and the future trends of Green Roofs with architects, designers, landscape contractors and decision-makers from the public and industrial sectors.

The focus of the discussions and talks will be on sustainable urban development and the spectacular Green Roof projects by renowned architecture firms, as well as on current technical developments and international Green Roof guidelines and standards. The lecture programme will be complemented by practical workshops, Green Roof excursions in and around Hamburg and by an accompanying trade show.

3rd International Green Roof Congress, in Hamburg, Germany

Congress Venue

The Empire Riverside Hotel towers over the river Elbe and embosses the skyline of Hamburg’s port with its Hanseatic elegance. The lifestyle hotel, designed by the renowned British architect David Chipperfield, with its generous events and convention area and modern multimedia technology, offers optimal conditions for a successful congress.


Registration and Accommodations:   The registration fee for two days, including workshops, working materials and meals, will be EUR 495,- (plus VAT); one-day tickets are available for EUR 295,- (plus VAT). Arrangements were made with several hotels in the vicinity of the congress venue. For detailed information, please visit the  website.

28 Lectures – 2 Excursions – 2 Workshops

– 1 Vision: Bringing Nature Back to Town

Online Registration:  www.greenroofworld.com

By the way, Aramis and I are happy to say that we will also be attending the  3rd International Green Roof Congress, where I’ll be moderating the sessions.   We hope that you can join us for a wonderful experience in lovely Hamburg!

~ Linda V.

Greenroofs & Walls of the World(TM) Virtual Summit 2011 Closing Address

July 4, 2012 at 10:59 pm

Today it’s my pleasure to air my own very short and sweet “Linda’s Summary and Virtual Summit Close” from our inaugural 2011 Greenroofs & Walls of the World(TM) Virtual Summit on greenroofs.tv and our GreenroofsTV channel on YouTube.

Aramis and I are very proud of Greenroofs.com’s initial virtual conference offering and are in the works to announce plans for an even wider spread out international affair!  Before we do that, though, we must thank various people without whom this endeavor would have been impossible:

  •  Our illustrious keynotes and speakers.
  •  The many global industry associations and non-profit organizations who supported us.  All of the brave participant souls – hopefully including you – who signed up for the first virtual conference of our greenroof and greenwall industry in the world!  Although we had a fantastic line up of world renown leaders, thinkers, and designers, you didn’t know what to expect – but you joined in the conversation just the same – thank you!
  •  And, most importantly, we’d like to acknowledge once again our 2011 Greenroofs & Walls of the World (TM) Virtual Summit Sponsors and Exhibitors and tell you how much we appreciate your continued support:

Event Sponsors:


Tremco Incorporated is a leading supplier of sustainable roofing systems, including vegetative, cool roofing and more. We are committed to building upon this base to create new mechanisms that improve sustainability and value for our customers.


American Hydrotech is the global leader in the development of waterproofing and roofing technology, and is considered a single source supplier of greenroof systems.


Grant Associates is a Landscape Architecture consultancy specialising in the creative design of both urban and rural environments. We are involved in a number of forward looking projects throughout the UK, Europe and the Far East, often working with some of the world’s leading architects and designers.

Green Living Technologies International (GLTi) is a US based green roof, wall and only soil based true vertical agriculture manufacturer/designer. Standard Green Living Wall systems are available as a 2′ x 2′ x 3″ configuration or with custom dimension and depth.

GREEN ROOF BLOCKS allow every building owner to have a green roof. Self contained, portable units can be arranged and rearranged as you see fit and are compatible with all roof membranes

Weston Solutions, in partnership with American Builders & Contractors (ABC) Supply Company, introduced the new GreenGrid System in August 2001. The modular greenroofing system can be placed over existing low slope roofs.

Emory Knoll Farms is a perennial nursery specializing in green roof plants, currently stocking over 100 varieties of green roof plants. Co-owner Ed Snodgrass is also a greenroof horticultural consultant.

International Leak Detection (ILD)’s trained & certified inspectors perform non-destructive integrity tests of waterproofing membranes utilizing the patented Electric Field Vector Mapping technology. Membrane defects are located with pin point accuracy.

JDR Enterprises provides key components for successful greenroofs, as attached systems or as individual units. J-DRain GRS is a pre-assembled greenroof drainage system consisting of a high strength dimple core, root barrier fabric, and filter fabric.

ROOFMEADOW develops greenroof projects throughout the United States, offering the Roofmeadow family of greenroofs. These are light-weight, low-maintenance vegetated roof covers that are ideal for retrofit installations on existing buildings.


AMENA (Asociacion Mexicana para la Naturacion de Azoteas) is an association created in 2005 to investigate, inform and train on the environmental, social & economic benefits of greenroofs. Here you can share ideas, news, projects, research, materials, services & regulations related to greenroofs.

The Chicago Department of Aviation (CDA) continues to serve as a benchmark for environmental stewardship by embracing the best environmentally, socially, and economically responsible practices at our airports. Our goal is to complement and promote the City of Chicago’s commitment to sustainable initiatives and to enhance the quality of life for our citizens.

City of Portland Environmental Services provides Portland residents with water quality protection, watershed planning, wastewater collection & treatment, sewer installation & stormwater management.

The Centre for Urban Greenery and Ecology, or CUGE in short, is jointly established by the National Parks Board and the Singapore Workforce Development Agency. CUGE has a critical mass of knowledge to share and advance expertise on urban greenery and ecology. CUGE provides professional skills training programmes for all levels of professionals and is a national training institution of the Landscape Workforce Skills Qualifications (WSQ). CUGE serves as a regional repository of best practices to advance urban and green living environment. CUGE will serve as the lead training provider for all levels of the landscape industry workforce. It will use the Singapore Workforce Skills Qualifications (WSQ) System to train and certify skills training and facilitate career development in the landscape industry.

Green Roofs Australasia is a not-for-profit membership organization with an elected committee that draws together the various governmental, organizational and business groups and individuals interested in being kept informed about green roof science, technology, practice, regulations and specifications.

The basic idea of the International Green Roof Association (IGRA) is to support the Green Roof market on an international level by sharing knowledge and experiences in the field of Green Roof technology and public relations – serving as a global networking & coordination centre.

The International Rooftop Landscaping Association (IRLA) was formed by voluntary workers in the greenroof industry. Our aim is to be a peace-loving organization that protects the global environment, constructs low-carbon, energy, livable, and beautiful landscape ecology; enhancing agricultural development, improving land utilization, and promoting human sustainable social development.

The Green Roof Centre, in association with Livingroofs.org is an independent advice and resource centre offering bespoke consultancy services. We aim to educate and up-skill the public and construction industry with training, conferences and tours.


Thank you so much in putting your faith in this exciting, fledgling yet burgeoning Internet marketplace for information seekers and product and services providers! You’ll hear more from us about the 2013 Greenroofs & Walls of the World(TM) Virtual Summit in late July.

Enjoy my little closing video (not my best photo)!  Visit the Virtual Summit 2011 play list to see “Linda’s Summary and Virtual Summit Close” or click below:

Watch all the 2011 videos on our exclusive Virtual Summit 2011 play list, or see them all now available on our GreenroofsTV channel on YouTube:

Episode #12: “Wind. Water. Heat. Grow. Greenroofs. Panel Session with Dr. Bill RetzlaffDavid AponteKevin Songer, and Joe Webb.
Episode #11: “GreenRoofs in Australasia” by Matthew Dillon.
Episode #10: “The Vertical Garden – from Nature to Cities: An Interview with Patrick Blanc” by Patrick Blanc and Linda Velazquez with an introduction by Caroline Menetre.
Episode #9: “Sloped and Complex Green Roofs” by Richard Hayden.
Episode #8: “The Portland Ecoroof Program: A Cross-section of the Green Roof Movement in Portland, Oregon” with Tom LiptanMatt BurlinAmy ChomowiczCasey Cunningham, and Alice Meyers.
Episode #7: “Constructing Gardens in the Sky” by Terry McGlade.
Episode# 6: “Sky Meadows – Integrating People and Nature: Sustainable Green Roofs and Roof Gardens” by Dr. Nigel Dunnett.
Episode #5: “Greenroofs & Walls for Educational & Social Equity in the Bronx” Panel Session with New York State Senator Gustavo RiveraBronx Borough President Ruben Diaz Jr.Robert BiederJon BeuttlerJess DannhauserJavier Lopez and Steve Ritz.
Episode #4: Keynote Address “CSR, Corporate Social Responsibility – The Who, What, Where, When and How” by Ralph Velasquez.
Episode #3: “CDA Leads the Way for Incorporating Green Roof Space in an Airport Environment” by Rosemarie Andolino.
Episode #2: “2011 Top 10 List of Hot Trends in Greenroof & Greenwall Design” by Haven Kiers and me.
Episode #1: Opening Keynote Address “A New Place” by Charlie Miller.
VS2011 Opening Address by Linda Velazquez (me!).

If you’re looking for an overview, make sure to see our 2011 Virtual Summit Highlights video (6:18) and our 2011 Virtual Summit Trailer (2:59).

Hopefully I’ll see you in February for our Greenroofs & Walls of the World(TM) Virtual Summit 2013!

~ Linda V.