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Mid Atlantic Green Roof Symposium Wrap Up

Green Team at Green Roof Technology, - Wednesday, August 22, 2012

by Andrew Yanders


Mr. Toad doesn't care to reinvent the wheel.

Last Thursday and Friday Jorg and I subjected ourselves to the horrendous Baltimore - DC traffic and attended the The First Annual Mid-Atlantic Green Roof Science & Technology Symposium at the University of Maryland.  The title of the symposium was "Redefining Green Roof Science" and the mission statement clearly states why:

Standards for green roof performance have not been established. The MGRST symposium is dedicated to disseminating results of scientific research that will lead to the establishment of green roof performance standards for the Mid-Atlantic region.

Year after year we attended similar academic conferences and each year we are confronted with the same     experiments and the same conclusions, all of which we know have been done and confirmed a decade ago in Germany.  For us, the researchers are only confirming what we believe to already be ‘common sense.’  We are certainly not disparaging the work of researchers who are attempting to better understand the green roof field they have recently entered.  What we truly regret is the inability of academic researchers to acquire and process the information already available rather than attempting to reinvent the wheel.     

What the green roof industry needs from its academic partners is a strict methodology and process to assess all the green roof components / complete systems available on the market.  Nearly a decade ago, the Green Roof Media Testing Laboratory was successfully implemented at Penn State University and has undoubtedly beneficially impacted the green roof industry.  A similar manufacture’s test for all other green roof components would best serve the entire green roof industry by setting minimum requirements and disabling inferior products from being dumped on the market.  

Episcopal Academy Raises the Roof

Green Team at Green Roof Technology, - Thursday, June 28, 2012

By Kat Harrold

 

Photos by Jorg Breuning

As the procession of minivans dropped off their little darlings for another exciting day at summer camp the sound of heavy machinery and green roof construction joined the chorus.  Green Roof Technology and UrbanEcoforms with the help of the Episcopal Academy's green roof advocates Joe and John made record time with the installation of the Episcopal Academy's first two green roofs.

The already eco-minded school has an impressive collection of energy efficient buildings and outdoor learning opportunities.  The green roofs are an invaluable asset in expanding their commitment to the environment and hands on learning.

Both green roofs are visible from glass hallways providing excellent observation of seasonal changes.  The extensive green roofs feature a mix of sedum plugs and cuttings with a grass swale and picturesque clusters of allium. 

 

 

 

                                                                              

 

 

Pittsburgh Goes Green

Green Team at Green Roof Technology, - Thursday, June 14, 2012

By Kat Harrold

 

Photo by Jorg Breuning

This past week Kat Harrold joined Ian Cooke of Monrovia and Mike Coraggio from EcoWalls for an ASLA green wall lecture series.  The trio gave an informative presentation on vital elements to consider from design phase to maintenance of green walls.

Ian charmed the audience with illuminating and entertaining descriptions of key specimens to utilize for climbing green walls.  He also provided a nice over view of different systems and materials to consider when selecting green wall support systems.

Kat provided detailed climbing green wall information from a case study of a recent project.  The case study discussed the evolution of the project from the architects concept drawings to plant selection and custom planter designs.  This project demonstrated how once can create an inexpensive and ecologically effective outdoor green wall on a LEED retrofit.

Mike finished up the presentation with beautiful creations that only he and the Imagineers of Disney could dream up.  Intensive green walls for both indoor and outdoor displays lit up the screen with a variety of themes and ornate designs showing the true aesthetic potential for this green medium.

 

 

 

Engaging the Senses

Green Team at Green Roof Technology, - Thursday, May 31, 2012
By Kat Harrold

   

Photos by ~ Green Roof Technology

When designing green roofs which encourage human interaction it is important to keep in mind the 5 senses, taste, touch, smell, sight, and sound.  

Taste – While the a green roof may be a tough environment for some vegetation to grow, there are still several edible herbs that can provide delicious accents to a meal or tea.  Mint, chives, parsley, cilantro, thyme, oregano and rosemary are just a few edible herbs that thrive on extensive to semi-intensive green roofs. 

 

 

 

 

 

 

Touch – Flowing grasses with prickly seed heads and the fuzzy leaves of Hieracium create a dynamic contrast to the lush springy texture of succulents and sedum.  Small berms can be used to integrate ornamental grass areas into extensive green roofs while keeping weight restrictions in check.

 

 

 

 

 

 

 

Smell – Closely related to taste, many culinary herbs can also employ a richly scented environment.  Other fragrant options for green roofs are lavender, polyantha rose “the Fairy”, sage, and Echinacea Daydream.

 

 

 

 

 

 

Sight – One of the many beautiful things about a green roof is there are a multitude of drought tolerant plants which provide year round interest.  Late winter and spring welcome a blast of color from crocus, Sedum hybridum “Czar’s Gold,” Dianthus, and Allium.  Summer brings forth a variety of extended bloomers including Sedum kamtschaticum, Hieracium, and Telinum.  Fall offers a variety of color from Aster Purple Dome, Snowcap Shasta Daisy as well as a red and gold glow from the foliage of several sedums.  Winter blankets the roof in festive greens and reds.  Sedums kamtschaticum, ‘Czar’s Gold,’ ‘Blue Spruce,’ and spurium ‘John Creech’ maintain their green foliage while Sedum spurium ‘Fuldaglut,’ moranense, album ‘Coral Carpet,’ and rupestre ‘Angelina’ brighten the season with displays of red and gold.

 

 

Sound – Green roofs have the to power to not only clean rain and air pollution but sound pollution as well.  When designing a green roof to function as a patio space, consider using plants which rustle in the wind such as grasses.  The tall reeds create white noise which helps mask the sound of a busy street.   

 

 

 

 

 

 

 

Begining of a Green Generation at the Episcopal Academy

Green Team at Green Roof Technology, - Thursday, May 17, 2012

By Kat Harrold

 

The Episcopal Academy -  Photo courtesy of Archdaily.com

The Episcopal Academy has long been known for leading the way in academic excellence.  Adding to this commitment to enhance the mind, body, and spirit of it's pupils the academy will be installing a series of green roofs on their academic buildings under the guidance of Green Roof Technology.

The green roofs will feature an extensive greenroof set up composed mainly of sedum plants and hardy herbs.  The green roofs will be used to promote local ecology, aesthetic appeal, in addition to being an interactive learning tool.  Visible from high traffic areas in the building, these green roofs will be an ever present and key tool in promoting the latest in sustainable practice and design.

 

 

 

ASLA Tour Lancaster Green Roofs

Green Team at Green Roof Technology, - Monday, April 23, 2012

By Kat Harrold

Franklin and Marshall Schader Hall  -By Kat Harrold

This past Friday, our very own resident green roof guru, Jorg Breuning, acted as an impromptu green roof tour guide in the city of Lancaster, Pennsylvania.  They city was host to American Society of Landscape Architects’ Pennsylvania-Delaware chapter’s annual meeting.  The city of Lancaster boasts many thriving extensive green roofs and has recently announced its commitment to becoming a national role model for urban green infrastructure through its LIVE Green program.  Green Roof Technology has had the pleasure of designing several green roofs in Lancaster City.  Jorg led a group of 30 landscape architects around the city explaining the different green roof systems on display.  The tour group visited two green roof designed by our firm, located at Franklin & Marshall University and Tellus 360

 

 

Akron University Green Roof

Green Team at Green Roof Technology, - Friday, February 17, 2012

By Andrew Yanders

 

Rendering by ~ Kat Harrold

Green Roof Technology is pleased to announce its newest partnership with Irie Kynyk Goss Architects.  IKG Architects, Cleveland Heights, Ohio, is a well-respected architectural and engineering service firm that specializes in the design and construction of environmentally conscious facilities.  Green Roof Technology and IKG Architects will collaborate to design Akron University’s first green roof.  Green Roof Technology has a proud history of working with leading educational institutions to establish their first green roofs, see Swarthmore & Carnegie Mellon.  The green roof on the Sydney L. Olson Research Center will be an 18,000 sf. extensive system planted with a diverse variety of sedums and hardy flowers and herbs.  The Olson Research Center green roof will be the first monolithic, or wall-to-wall, green roof on a university building in Ohio.  

The Podium Roof Garden at Toronto City Hall Case Study

Green Team at Green Roof Technology, - Friday, February 10, 2012

By Jorg Breuning 

Photo - By Jorg Breuning

In an earlier posting we highlighted the Podium Roof Garden and how it has fallen victim to a psychology of unobtainable and opportunistic design expectations and the consequences have been expensive.  After a deeper analysis of the project we have compiled a case study covering this highly visible example of a green roof designed and constructed in a mistaken fashion. The aim of any green roof, or any other kind of BMP, is to create a sustainable, low-maintenance environment in the most cost-effective way possible.

Two key factors led to the writing of this study: an independent inspection of the site on November 2011 and the subsequent investigation into the project, which was highlighted by the discovery of the exceptionally high cost per square foot).  In this case study Green Roof Technology (GRT) will report that the landscape architect’s design for the green roof led to higher installation costs and higher future maintenance costs, which were not included in the total cost of the green roof.  By not employing the most economical approach to green roof design and construction, the City of Toronto missed an opportunity to either reduce costs by more than 50% or install another green roof of similar type and even greater area.

Toronto must remain a progressive city, rewarding its citizens with a safe, healthy, and beautiful place to live. The green roof program is an essential aspect of Toronto’s long-term goals. What is required of the city, and of any other city in North America, is to establish a clear consumer-oriented guideline for the best-practice in green roof construction. An industry wide effort must be made to reduce the market price of designing and installing green roofs. The result will benefit the multitude over the few in the decades to come.

Click here for the full version of this case study.


FLL Revisited

Green Team at Green Roof Technology, - Tuesday, February 07, 2012

By Andrew Yanders

Edited by - Kat Harrold

Photo ~ Jorg Breuning

The FLL Green Roofing Guideline first appeared in 1982 as the “Principles of Green Roofing” and since 1992 has been reworked many times as “Guideline for the Planning, Construction and Maintenance of Green Roofing – Green Roofing Guideline.”  It is recognized as the benchmark set of regulations for green roofing in Germany.  The FLL Roof Greening Guideline is also widely accepted abroad and serves in some neighboring countries as the basis for developing their own regulations.

This latest edition covers the 2008 edition of the FLL Green Roofing Guideline.  The preface clearly states the importance and relevancy of the Guideline and the constant diligence taken to adapt and outline the newest developments in the green roofing industry.  The Guideline is the result of unpaid technical and scientific cooperative work and is intended to be a recognized code of practice or State-of-the-Art; it is a basic tool for the planning, construction and maintenance of reliable and high quality performing green roofs.  The Guideline also includes transparent, consumer oriented testing methods for the investigation of vegetation, substrates and aggregate drainage materials and the investigation of resistance to root penetration of roof membranes and protective layers. 

Three sections of this paper provide a brief summary of the three major components of the Green Roofing Guideline:  Planning, Execution, and Maintenance.  It is important to note that the Guideline requires a fundamental background in horticultural science and engineering principals.  The Guideline is not an IKEA step-by-step construction manual designed to enable any Do-It-Yourself project. 

Click here to read the full version.

Cities Alive - Philadelphia 2011

Green Team at Green Roof Technology, - Monday, December 12, 2011

By Kat Harrold

 

Photo ~ Kat Harrold

Last week the North American Green Roofs for Healthy Cities conference was held in the rapidly becoming emerald city of Philadelphia.  The conference was a very rich event in terms of contacts and the latest and greatest in developments in the green roof and green wall industry.

This year brought some new technology with us to show off one of the best solutions for combining solar and green roofs.  The black plastic component resembling as shark fin that took center stage at our booth is one of the latest developments in drainage boards world wide.  The drainage board feature a built stand for the solar panel allowing the weight of the green roof to ballast the solar panel stand.  By utilizing this set up one can take advantage of the stormwater benefits of the green roof as well as the energy producing benefits of the solar panel.  The other added benefit of this set up is that the green roof keeps the solar panel cooler preventing it from over heating and allowing it to produce energy more efficiently during the cooler months.  This new development was very popular this year and we look forward to the promotion of solar green roofs in the future.

Aside from the trade show there were also very high quality networking events and informative lectures taught by some of the industries finest.  One of my personal favorites was a lecture about green roof mapping in Germany by Professor Manfred Kohler.  By using ideas from this lecture, if we could map and stay current with green roofs being built in North America we could better monitor the health and performance of these roofs to truly document and take advantage of their stormwater benefits.  This could also be very useful in trying to create green ways for migratory birds.

Over all it was a wonderful conference and the solar drainage board made it back safely despite the wind's best efforts!

Can't wait to see everyone at the 10th Cities Alive conference in Chicago!

 

 

 


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