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A Nice Gift for Green Roofers - Un Jardin sur le Toit – First Green Roof Fragrance

Green Team at Green Roof Technology, - Monday, January 14, 2013

Un Jardin sur le Toit – First Green Roof Fragrance

by Jorg Breuning

Jardin sur le Toit by Hermès features a little slice of nature perched on the rooftop of the building of the house of Hermès in Paris, France. A feast for the sense and the mind. A fragrance of light and delight, crunchy and cheerful.

 

Hermes launches the new fourth fragrance from the collection of garden-inspired fragrances Un Jardin, named Un Jardin Sur Le Toit or “A Garden on the Roof” in 2011. Un Jardin Sur Le Toit refers to the especially luxurious garden located on the Hermes’ headquarters building roof. A secret roof garden, hidden in the heart of the city, in Paris.

The garden is full of aromatic herbs, flowers and fruits whose flavors vary as they pass through the metamorphosis induced by the seasons. Its fresh and sweet-smelling atmosphere is captured by apple, pear, rose, green grass, basil, magnolia and compost notes.  This fruity, vegetal, floral eau de toilette is appreciated by both women and men.

The composition is designed by Jean-Claude Ellena.

Picture: http://www.lacentraldelperfume.com

Elevating Urban Farms onto Rooftops

Green Team at Green Roof Technology, - Wednesday, January 09, 2013

By: Jörg Breuning

 
Photo credit: Kölner Wein Depot

Long before green roofs became necessity and rooftop farming was trendy in North America, Dipl.-Ing Markus Wittling was planning to elevate an entire vineyard on top of the Wine Museum in Cologne, Germany.  Build in 2002, the sloped green roof spans over the entire museum building of almost 20,000 square feet. It is the first vineyard on a roof, the first sloped rooftop farm and the first and oldest organic urban farm on a roof in the world.

In the middle ages Cologne was the most important wine trading town north of the Alps.  The "Weinmuseum Köln e.V." is honoring this factwith a brand new museum with astonishing and educational exhibits on wine. The green roof displays 40 of the most important grape species from around the world situated onto 720 vine stocks.  The soil layer (growing media) including granular drainage is approximately 27 inches deep and consists of a blend of porous volcano material like Lava rock and Pumice - materials in which grapes simply grow best. 

 This rooftop vineyard is a prime example of the performance of modern green roof technology and is ideal for educational purposes.  If you have a chance to visit Cologne, the Wine Museum is a must on your Green Roof Safari and your effort will be rewarded with amazing wine tasting

For more information: www.weinmuseum.com or simply contact us.

 

 

The Economics of Green Roofs from the Perspective of the Commercial Client

Green Team at Green Roof Technology, - Monday, January 07, 2013

 A Cost-Benefit Analysis of Extensive Green Roofs

In 1994, Fritz Hämmerle published an analysis on the economic benefits of extensive Green Roofs for the very first in the international Green Roof magazine Dach + Grün. Nearly 20 years later, it is now undisputed that extensive green roofs have numerous positive effects on the environment and the physical properties of buildings. Nevertheless, today only a small amount of extensive Green Roofs have been installed in North America and this is mainly due to the high initial costs of construction and the commitment to proper long-term maintenance.

The lastest cases study (2013, Jorg Breuing) about the economics of extensive Green Roofs in the USA is now available for download.

Download the entire case study as a PDF (107KB) exclusively at our Resources Page.                                         http://www.greenrooftechnology.com/case-studies

A Flower in Disguise

Green Team at Green Roof Technology, - Wednesday, January 02, 2013

By: Jörg Breuning & Samantha Yurek

"A weed is a plant that has mastered every survival skill except for learning how to grow in rows." - Doug Larson

 

Photo Jörg Breuning, Green Roof Service LLC: Hieracium aurantiacum, Orange Hawkweed. Haunted by environmentalists and often branded as obnoxious, farmers and nurseries stamp Hieracium as invasive.

It is all about perspectives, experience and evolution.  Weeds are typically plants growing where they are in competition with cultivated plants or simply unwanted by humans.  However, seeing it from a philosophical point of view any organism has a right to exist.  It is the intention of each organism to multiply, spread and adjust to the surrounding environmental conditions.  This adamant approach has also helped humans to develop and thrive over ten thousands of years.  The word native has become a stereotype of certain plants that should be growing in a particular region.  But with human perspectives being far from uniform, the term 'native' has been skewed over time.  The term is irrelevant when looking at the larger picture of evolution.

An unwanted plant on intensive green roofs could be ideal ground cover for un-irrigated extensive green roofs or vice versa.  Being an outside element, green roofs will undergo natural succession and evolution as described above.  This succession can effect the function of a green roof in the long run for the better or worse.  Ideally, maintaining a green roof helps to guide the plants in a stable coexistence with minimal succession, creating little maintenance.  In most cases it doesn't matter whether the green roof plants were planted intentionally or not.

Un-irrigated extensive green roof designs tend to have extreme conditions; therefore the plant pallet is rather narrow.  It is very difficult for most plants to sustain themselves over decades.  Introducing many of these so-called 'weeds' on to a rooftop environment may prove to be more efficient because of the vigorous growing capabilities.  Yet many factors such as unique weather events during the establishing phase (3-8 years), artificial irrigation, pre-grown nursery trays, excessive fertilization, can be counterproductive in modern green roof technology.

Happy New Green Roof Year

Green Team at Green Roof Technology, - Monday, December 31, 2012

Happy New Year!

by Jörg Breuning and Greenteam

- John Ruskin:

“It's unwise to pay too much, but it's worse to pay too little.
When you pay too much, you lose a little money - that's all. When you pay too little, you sometimes lose everything, because the thing you bought was incapable of doing the thing it was bought to do. 

The common law of business balance prohibits paying a little and getting a lot - it can't be done. If you deal with the lowest bidder, it is well to add something for the risk you run, and if you do that you will have enough to pay for something better.”

 

John Ruskin

John Ruskin is best known for his work as an art critic and social critic, but is remembered as an author, poet and artist as well. Ruskin's essays on art and architecture were extremely influential in the Victorian and Edwardian eras.

 

 

 

 

 

Solar Power (and Green Roofs) on the Rise!

Green Team at Green Roof Technology, - Friday, December 28, 2012

By: Samantha Yurek

 

Solar energy has been on a modest climb for most of its existence, but this year the solar power market jumped 71% compared to last year’s sales.  A growing renewable industry is a boost to our economy; over 93,000 Americans are employed within the solar business alone.  As the demand for solar installations grows higher, the prices will drop correspondingly.  This is already evident, in 2006 the price of a residential installation plummeted from $9 a watt down to $5.46 a watt.  Today we see prices around $ 4.00 per watt.

Even with the rise in solar sales, the US is still trailing behind Germany, Italy and Spain.  Around 20% of power in Germany is harvested from the sun only, but only around 11% of energy here in the Unites States comes from a collaboration of renewable resources (solar, wind, hydro, etc.).  Harvesting power from the sun is a smart idea.  Not only is the sun a renewable resource, but the process creates zero atmospheric emissions.  It’s clean and reliable!  Even with this spike in interest, solar power is still underused here in the United States because investors often look only at the capital costs. Capital costs of a Coal Power Plant are at around $ 2.10 (source Wikipedia) vs. around $ 4.00 for Solar.

Note that the capital costs are not the only determinant of the cost of the electricity produced. A coal plant needs to burn coal to produce power (a limited resource), while a solar panel and other renewable generation has no fuel input at all.

“Externality and insurance costs of energy sources” became in the 2010s recognized as equivalent to fuel costs as a decision factor. In particular for Nuclear and coal power plants but also for ground mounted Solar these costs can be deal breaking.

Roof mounted Solar power plants combined with a vegetated roof (extensive green roof) increases the capital costs by less than 20%. At the same time this marginal increase pays back in a short time due to the reduction in stormwater fees, reduction of the environmental foot print and recognizable increased in efficiency.

The synergetic combination of vegetated roof / Green Roofs with Solar is truly State-Of-The-Art and unmatched in modern green energy production and environmental protection.  

Common Sense

Green Team at Green Roof Technology, - Thursday, December 20, 2012

By: Jörg Breuning



Recently we have been receiving more and more calls regarding performance issues on extensive green roofs. Most of these roofs have been installed between 2-5 years ago by various green roof companies or supplied by different manufactures. Common complaints include dying plants, drainage system failure, growing media erosion and waterproofing leaks. Especially pre-vegetated systems (planters, trays, modules) mostly don’t meet expectations or even minimum requirements for green roofs. More often than not, green roof failures are the result of simple design or maintenance mistakes.

Many failures start within the design. A poor design leads to a snowballing effect of problems, growing and gaining velocity with every movement forward. Failures also occur during the construction phase when inexperienced installers claim a certain expertise because of a prior job, a way-back education or simply because they once watched a green roof installation. 

But problems can arise even sooner. We also noticed that many initial design and construction decisions are made ‘democratically’ or as a team consensus because no one person wants to carry the full responsibility on their own shoulders. Often these decisions are wrong and unrealistic. Physics, biology and chemistry are natural laws and cannot be compromised, even if done democratically.

Engineers must work within the parameters of reality and the best course of action is to always to use common sense.

In most cases things could be so easy if people would just use their own common sense and experience instead of believing all the nonsense they find on the internet.

Our commitment is to common sense, never nonsense. 



Baltimore County Realizes the Need for Green Spaces; Preserves 38 Acres

Green Team at Green Roof Technology, - Wednesday, December 19, 2012

By: Ryan Miller 



Baltimore County has announced that they will preserve 38 acres of publicly owned forested land in Perry Hall.  County officials believe this to be the largest preservation of open green space in that community in more than a decade.


With Maryland passing House Bill 987 earlier this year, many local governments are looking for ways to minimize the storm water runoff impact on our local watershed.  With increased urbanization, our green spaces are shrinking and so are the vast environmental benefits that come along with it.

http://articles.baltimoresun.com/images/pixel.gifThe land will be protected from development and it at two locations: about 8 acres in western Perry Hall and nearly 30 acres north and south of Indian Rock Park.  In an announcement of the land reclassification, County Councilman David Marks said he had worked with County Executive Kevin Kamenetz for the past year to preserve the land.

"Not only are we protecting green space in two distinct regions of Perry Hall, but we are preserving an area larger than the acreage at Perry Hall High School," said Marks, a Republican from Perry Hall. "It is a milestone for the Perry Hall community, and it comes at almost no cost to Baltimore County's taxpayers."

Source: The Baltimore Sun



Proud to be the New Green Roof Technology Team Member!

Green Team at Green Roof Technology, - Friday, December 14, 2012
By Samantha Yurek



I grew up in Norrisville, an extremely rural area in the top left hand corner of Harford County.  My childhood was one of exploration; following streams imagining we were Lewis and Clark, constructing forts from the natural resources abundant in the forest behind my house, playing outside all hours of the day.  Our parents had no need to worry; we lived on the side of town where the grass was greener.  The time I spent outside as a child has given me so much appreciation for the earth where we reside.  It wasn’t until I enrolled in an environmental class during my senior year of high school, that my heart was finally set on a career path advocating for the health of our environment.

I eventually broke away from the small town scene to further my education at the State University of New York College of Environmental Science and Forestry.  This past May I graduated with a Bachelor of Science degree in Environmental Studies with a focus in Communications.  Even with the gray cloud of unemployment casting a shadow over the majority of recent college graduates, a narrow ray of sunshine peeked its way into my life.  I recently got my foot in to the door of the growing environmental movement by becoming a new member of the Green Roof Technology team.

Although my experience with green roofs has been limited, I’m excited to expand my knowledge on the subject as well as start my new career working towards a positive change in our environment and community.  I look forward to practicing the art of writing, whether it’s in the form of a blog, a magazine article, or a simple email reaching out to our clients.  There are so many aspects of the green roofing industry and I’ve only started to dip my toes in the lake of knowledge Green Roof Technology has to offer me.  Today will mark my fourth day as a team member and I have already gained understanding of the various types of green roofs, the process in which they are created, and found out that my company is the single supplier of the integrated solar green roof design in North America.  I have found the perfect job: personally having a hand in mitigating storm water runoff, lowering the urban heat island effect, improving the air quality, and producing power using a sustainable resource, amongst many other benefits.  I want to thank my coworkers for this unique opportunity that will surely rival any Christmas present I will receive this year.  Don’t forget, every green roof counts!


Ground Mounted Solar Farms - Questionable

Green Team at Green Roof Technology, - Saturday, December 08, 2012

Ground mounted Solar Farms are questionable.

Jörg Breuning Dec 5th 2012

 

It is widely known that multibillion companies are massively investing in solar energy. Especially Internet companies (Google, Yahoo, 1and1, etc.) have huge demands for energy to feed their decentralized server systems. Experts estimated that in ten years from now this modern telecommunication (internet, clouds, videos, email etc.) require worldwide 1963 Billion kWh. This is three times more than the current entire power consumption of France, Germany, Brazil and Canada together (Greenpeace).  With this numbers in mind it is understandable that these companies like to reduce their energy costs in the long run with alternative energies.

Photograph: Boris Horvat/AFP/Getty Images

However alternative energy doesn’t mean it is “green”. Especially ground mounted solar farms (the preferred solution of these companies) consume a tremendous amount of land and produce substantial amounts of run-off. Typically the development starts with clear-cuts of forests, elimination of native environments or transforming farm land. After the development is done sometimes vegetation is brought back. Typically low growing grasses that require regular maintenance with sheep, weed covers, mulch, gas powered mowers and chemicals.

Source: http://www.greentechmedia.com/content/images/articles/German-Solar-Weeds%281%29.jpg

Once this expensive maintenance is not done consistently the performance of the system will suffer and eventually completely fail.

Picture: http://www.greentechmedia.com/content/images/articles/German-Solar-Weedds(1).

 

Ground remote Solar Farms.

Solar arrays installed on already impervious areas will reduce the land consumption dramatically. Also being less addicted to Facebook , IGadgets, PC, or smart Phones can actually reduce the energy need -our impact- without losing contact to friends and still making new friends. A hand written note in a personal calendar can be more environmentally friendly than connecting to clouds and email programs.

Since there are already enough existing roofs, parking lots, rail road tracks and roadways that could be covered with Solar and also combined with extensive green roofs would create recognizable stormwater reduction, perviousness and last not least power. This combined technology is available since decades but many Architects, Engineers and developers seemed to be blinded by the sun while the supposing green industry takes out one piece of fertile land at a time and taking away nature’s most advanced solar panel – the plants that are surrounded by a natural sponge.

No additional land use and hardly any maintenance on extensive Green Roof / Solar combination with the well-engineered Sun-Root ™.


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