Last week I told you about our Keynote Speakers for the Greenroofs & Walls of the World™ Virtual Summit 2011 - Andrew Grant, Charlie Miller, Ed Snodgrass and Ralph Velasquez –  awesome thinkers, designers, trend setters, eco-luminaries all of them!  And among others, we have French botanist and modern green wall pioneer Patrick Blanc, whom I’m interviewing this afternoon in Chicago…

See the GGW Virtual Summit Speakers page and Agenda to learn all about each presenter and their presentations or the panel sessions.

Speaking of our panel sessions, we have seven very distinct, innovative, and important collaborations that you are sure to enjoy and learn from personal experiences of movers and shakers in their respective fields from international non-profit, private and university level to U.S state, city, and borough level to professional association, private enterprise, and corporate experiences.

Click on the photos or titles to learn more about each scheduled time slot on the Agenda and each individual - they all have live Question & Answer sessions afterwards, so don’t miss them to pick their brains on how they are succeeding in greening our roofs and walls:

“Biodiversity and Greenroofs” above left to right: Christine Thuring (Moderator), Nathalie Baumann, Dusty Gedge, and Gary Grant discuss original research and unique experiences, from field work upwards to bigger picture perspectives, as well as corresponding experiences with legislation on urban nature conservation.

Christine is moderating the panel on “Biodiversity and Green Roofs” where she also speaks about her research on plant community development and ecological processes on extensive green roofs with time.  Nathalie speaks about “Green Roofs / Natural Roofs = Biodiverse Habitats and Ecological Compensation in Urban Space: 15 Years of Experience in Switzerland.”  Dusty speaks about “Designing and Working for Biodiversity on Green Roofs for Over 10 Years.”  And Gary speaks about “My First Biodiverse Green Roof in 1992, Considerations for Planning and Design and Some Thoughts on the Future.”

“Greenroofs & Walls for Educational & Social Equity in the Bronx” above left to right: Robert Bieder (Moderator), Jon Beuttler, Jess Dannhauser, Bronx Borough President Ruben Diaz Jr., Javier Lopez, New York State Senator Gustavo Rivera, and Steve Ritz.  Fueled by a passionate and committed Bronx Borough President, Ruben Diaz Jr., it is common knowledge that the Bronx is leading NYC in embracing green technologies and the green economy. To wit, the policies and educational initiatives underway in and of the Bronx are making dramatic strides in the quality of life and opportunities for all residents with concentric benefits and ripples felt citywide, statewide and nationally.

This panel featuring: a State Senator, noted business leader, NYC project manager, health care manager, social service providers and a dedicated educator speaks to triple bottom line benefits, impacts and the uses of green roofs, green walls, and urban agriculture as highly replicable, critical components to creating and leveraging social equity and economic and educational opportunities in challenging times.

“The Portland Ecoroof Program: A Cross-section of the Green Roof Movement in Portland, Oregon” above left to right: Tom Liptan, Matt Burlin, Amy Chomowicz, Casey Cunningham, and Alice Meyers.  The Portland Ecoroof Program started in 1996 when a city employee constructed an experimental ecoroof on his garage.  From this small start, the program has grown and as of July 2011 there are over 420 green roofs of varying sizes, on all types of buildings, from multi-story apartment complexes and commercial buildings to humble sheds, kiosks, and garages.  These green roofs cover nearly 30 acres of Portland rooftops (extensive and intensive roofs).

The Portland Ecoroof Program consists of technical support, incentives, education, policies, and research.  The program is incentive-based rather than regulatory, and the city’s policies reflect this approach.  This presentation provides an overview of how these program elements work with the private sector and general public to sustain the green roof movement in Portland.

“Vertical Agriculture: A Global Movement Starts Locally, from Walls & Roofs to Table” above  left to right: George Irwin (Moderator), U.S. Congressman Tom Reed, and Tom Ferraro.  Urban agriculture is on the rise globally – up the walls and on rooftops.  Fresh, local crops benefit the entire community for many reasons.

U.S. Congressman Tom Reed from the 29th district of New York, Tom Ferraro, CEO of Foodlink – a national network of 200 food banks – and George Irwin, CEO of Green Living Technologies International (GLTi), provide interactive conversation and commentary concerning the impact of education, economics and opportunity around local food production with green walls and roofs.  Rochester-based GLTi started in New York City and has since grown nationally and internationally through education and collaborative hands-on projects with local youth, the underprivileged and disadvantaged in New York and Los Angeles and with business partnerships in Santiago, Dubai, and beyond to include their Food Factory and more.

“Wind. Water. Heat. Grow. Greenroofs.” above left to right: Dr. Bill Retzlaff, David Aponte, Kevin Songer, and Joe Webb.  Greenroofs are impacted by wind, water and heat on an unrelenting basis.  Through wind trials and real hurricane survival stories in Houston, TX, Jacksonville, FL, Edwardsville, IL, and Puerto Rico, we have met those challenges and will discuss various projects’ responses and successes to Hurricanes Ike and (any others?).  Drought, hot winds, and unseasonable 100° days can also quickly desiccate or kill greenroof plants.

Dr. Bill Retzlaff moderates discussing wind studies and plant trials for greenroofs at SIUE. Joe Webb talks about his project which endured 110 to 120 mph winds and 11” of rain in 24 hours and shares water mapping and Living Building Challenge Water requirements.  Kevin Songer talks about the Outdoor Turbine Hurricane Simulator at the University of Florida, water conservation through ‘nature-based irrigation design,’ and the importance of biodiversity.  David Aponte speaks to his experience of engineering and designing greenroofs with the correct growing media and plants in hurricane-prone, sub-tropical Puerto Rico.

“Greenroofs: Wind & Fire” Panel above  left to right: Kelly Luckett, Mike Ennis, and Jim Kirby.  No longer can the green roof be deleted from a project due to failure to comply with the fire code.  After three years in the making from members of Single Ply Roofing Industry in cooperation with Green Roofs for Healthy Cities (GRHC), we now have a green roof design guide for minimizing the risk of fire on green roofs.  The securing of a place in mainstream construction through the International Code Council (ICC) has resulted in a milestone for the North American green roof movement. Fire concerns are only half of the code story as the wind design guide is still progressing through the ANSI process – we must overcome both the wind and the fire obstacle.

Kelly Luckett, President of Green Roof Blocks, moderates and shares his experiences representing GRHC with the consensus based ANSI/SPRI VF-1 and RP-14 standards.  Jim Kirby, NRCA’s AED, Technical Communications, provides NRCA commentary about building codes, vegetative roofs and RP-14.  Mike Ennis, Technical Director for SPRI, speaks to SPRI’s leadership leadership in the development of fire and wind standards and experience in the building code arena.

And, because the panel sessions weren’t stirring enough, we’ve ended with the “Green Roofs Without the Hype” Panel above left to right: Patrick Carey, Dr. Robert Berghage, Charlie Miller, and Ed Snodgrass.  Here are four people with the knowledge to speak frankly about the current state of affairs in green roofing.  This panel focuses on the designation and evaluation of expertise, appropriate background and training, roadblocks to research and education, design origination and control, chain of custody issues, installation, and the residential market.

We hope you join us for this very interactive virtual experience – think film festival meets 2-day webinar and online expo extravaganza!

Pre-register or learn more by visiting:  virtual.greenroofs.com.  Don’t forget to pre-register by this Friday, September 9 for the discounted Early Bird rate of only $49 ($25 for students/faculty and government professionals).

Brought to you by Greenroofs.com, we’d like to thank to our Virtual Summit Sponsors TREMCO (Rare Earth) and American Hydrotech (Emerald) and our Exhibitors and Media Partners – make sure to visit them at the Expo Pavilions.

See you online on September 27 & 28, 2011!

~ Linda V.

Our Greenroof Project of the Week (GPW) is the rustic extensive 1,000 m²  “Asphof Hen Unit” greenroof in the beautiful countryside of Rothenfluh, Switzerland.  A conglomeration of seven medieval villages, Rothenfluh is a picturesque municipality in the district of Sissach in the canton of Basel-Country in northern Switzerland.

Aramis and I had the pleasure of visiting the lovely area in September, 2005 where I presented my paper “An International Call for The Greenroof Projects Database” at the first The World Green Roof Congress held at the University of Basel, Switzerland.  The Congress was co-organized by ZHAW – Zurich University of Applied Sciences Institute of Environment and Nature Resources, Centre Urban Greening, Competence Centre Green Roofs (Hochschule Wädenswil) – and the International Green Roof Association (IGRA), among others, and the tours were led by graduate students and volunteers from ZHAW/The World Green Roof Congress.

We jumped at the opportunity to join one of the local tours that encompassed “Green Roof Week” from September 12 -17.  Congress attendees had a choice of a wide-ranging excursion program ranging from one to three-day trips, “showing examples of good practice on famous green roofs in Switzerland and the surrounding area of Basel.”  We opted for a one-day tour and wonderful host and guide was Nathalie Baumann, MSc / Biogeograph, ZHAW Research Associate, who specializes in the ground-breeding Lapwing bird population nesting atop various brown and greenroofs in the area.

We visited six very different applications, from one of Nathalie’s research sites atop a huge pharmaceutical manufacturer to the largest solar roof installation with greenroofs in Switzerland, to a greenroofed cattle barn and this organic chicken farm with two greenroofed structures, where we enjoyed a fantastic Swiss lunch, too.

The owner, Matthias Eglin, really wanted to tread lightly upon the land in terms of blending the large chicken barn/coop into the landscape and providing a literally cooler environment for his 2,000 organically-raised chickens. 

He turned to renown biodiversity researcher Dr. Stephan Brenneisen of Hochschule Wädenswil (also the coordinator of the World Green Roof Congress and president of the Green Roof Competence Centre), who served as project consultant for the Canton Basle Rural’s Nature and Countryside Protection Commission – see the federal service project on ZHAW’s website.  Their intent was to establish an extremely low maintenance xeric landscape on top of an agricultural utility building and have it eventually naturalize to mimic the surrounding terrain.

So in 2002 they constructed the Asphof Hen Unit using inexpensive local materials – so local in fact that they harvested and shred Miscanthus sinensis (China grass/reed) from Mathias’ own property to serve as an inexpensive lower substrate and water retention layer.  They excavated 5 cm of loamy humus topsoil from their former orchard area and used it as a free growing medium.  The annual Phacelia tanacetifolia (Lacy Phacelia), used extensively in Europe both as a cover crop and as bee forage, was included in the grass seed to break up the soil mix and act as erosion control.  Other herbs were included in the roof as well.  Here’s the roof, below, in 2002:

And below, three years later, in 2005:

The natural temperature control reduces the heat by up to seven degrees in the summer (relative to outside temperatures), due to cooling effects of evaporation, resulting in more stress-free chickens!  When we were there it was fun to watch them roam freely about the property, hopping from one roof to the next.

Getting up to the roof took some care and trust that people were holding the ladder on both ends – and as usual I didn’t have the best shoes on..but it was fun!  And it was very grassy:

The second 1,200 sf greenroof is found on the Hay Shed Greenroof, constructed in 2005, which shelters hay rolls used on the farm property.

Christine Thuring served as a Congress team member and guide on one of the other tours during the Congress.  Co-founder of Green Roof Safari (and Chlorophyllocity and, of course, one of our contributing editors), along with Jörg Breuning (of Green Roof Service, LLC) she has lead tours here since, as well.  Green Roof Safari offers special access to the European greenroof industry with custom designed tours with multi-lingual guides specializing in highlighting current and historical trends in policy, research and design for the areas visited.

Christine shared these two photos with me and informed me that the roof continues to be monitored, especially the soil substrate and how it has developed with time – Dr. Brenneisen above with the group, and measuring the roof soil below:

Christine succinctly says of the project:

“The Asphof chicken shed demonstrates innovative, economic, simple success.” ~ Christine Thuring

So successful that they don’t even mow it – the roof meadow acts as a self-sustaining system, fully integrated into the landscape.

If you’re interested in seeing this project, you’re in luck.  Now in its sixth year Livingroofs.org Ltd will be again partnering with Hochschule Wädenswil for their famous “Swiss Green Roof Tour 2010” which will be held on May 6-7, 2010.  You’ll not only get Dr. Stephan Brenneisen, but also the indomitable Dusty Gedge, Director of Livingroofs.org, both of whom are internationally recognized for their work on greenroofs and biodiversity.  Much of the focus of the tour is how research in Switzerland has developed an approach to green roofing that has biodiversity at the heart of their design.

From roofs designed for lizards, to those that have been designed for rare bees, beetles and spiders, this year the tour includes visits to roofs where Swiss researchers are studying ground nesting birds – and to where chickens are happy, too, on the ground and on the roofs.

~ Linda V.