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First Garden Bridge for Pedestrians in North America.

Green Team at Green Roof Technology, - Friday, February 20, 2015

Modern Green Roof technology combined with a Blue Roof to minimize artificial irrigation, to maximize water retention and enable visitors to cross a busy four-lane highway without leaving the lush greening of a park.

 

The Garden Bridge at Universal Studios in Orlando is the first of its kind in Florida. Designed by Miles Architecture Group Inc., Libra Design Group and Green Roof Service LLC, the green bridge creates an innovative connection of Universal City developments. Selected ground covers, shrubs and trees escort pedestrians almost without notice that they are crossing over a busy highway. The distinctive landmark project is engineered with people in mind.

The Garden Bridge at Universal Studios Orlando project is approximately 3,000 sf (145' x between 18 and 25' wide). The bridge is designed to pond water in the granular drainage area to increase the water retention (a blue-green roof combination, Patent hold by Optigreen - 1978 and the first time introduced to North America by Jorg Breuning in 2001).



Unique projects require unique solutions. Keeping the costs for the structure low, the trees are located above the bridge's pillars. The walkway gently winds up to the bridge and over and is easy accessible for the handicapped or service carts.

The project was possible with an outstanding waterproofing solution by ALT Global. ALT Global meets the FLL requirements for root resitance.


 

This innovative green roof project is a master piece of teamwork between architects, structural engineers, landscape architects and green roof professionals with an open mind, environmental leadership and common sense.

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SRWA Conference 2014

Green Team at Green Roof Technology, - Sunday, October 19, 2014

Next Generation of Sustainable Buildings

 

Baltimore, MD / Hershey, PA --- The Sustainable Roofing and Waterproofing Alliance (SRWA) hosted its fifth annual fall conference from October 8-11, 2013 in Hershey, PA. The event brought together a global audience of architects, roof consultants, green roof experts, building design professionals, contracting firms, and building owners. This unique program featured in-depth educational courses and hands-on demonstrations designed to inform and advocate for advanced green building practices.

Enhanced moisture control of super insulated, high performance buildings envelopes in each climate zone on Earth is the key for long-lasting, low-impact and healthy buildings. Proper solutions will maximize the payback of investments for building owners and drastically reduce the environmental footprint of building structures at the same time.

The speakers at the SWRA Conference paired common sense with decades of scientific research and developed best management practices for any building envelope application.

“With over 200 attendees from 19 countries around the world the fifth SWRA conference set a new milestone for building professionals”, said Jorg Breuning, Green Roof Service LLC – Green Roof Technology, “vegetation on top of buildings are the ultimate transition from manmade structures to the natural environment.”

Effective, economic design and maintenance principals of modern Green Roof Technology was presented and discussed by Jorg Breuning. With over 34 years of experience, Jorg Breuning demonstrated that thinking outside the box or a ridged modular grid will separate the wheat from the chaff.

The SRWA team led by Samir Ibrahim, Director of Design Services at Carlisle did a phenomenal job to make this conference happen. 

Mineral Wool on Green Roofs

Green Team at Green Roof Technology, - Sunday, September 21, 2014

 Green Roof Innovation

 Mineral Wool on Green Roofs

 Green Roof Technology Reveals Latest Study about Mineral Wool on Living

Since their first commercial production in 1871 (Georgmarienhütte, Germany), mineral wool found its way in many applications like thermal insulation and soundproofing. Mineral wool, mineral fibers are typically referred to synthetic materials like fiber glass, ceramic fibers and stone or rock wool.

Two main types of mineral wools are on the market – water repellent (Hydrophobic) and water adsorbent (Hydrophilic). For horticultural purposes, only the hydrophilic type is useful. Many patents were granted for simple Hydroponic systems or the germination of seeds with mineral wool in the early 80’s.

In modern green roof technology the first green roof systems came on the market around 1985 in Germany at a time as the German green roof industry gained tremendous momentum. As a lightweight solution with high water retention, mineral wool seemed an ideal material. The higher costs and the higher carbon footprint - comparing to lightweight aggregates – were argued with easier installation and higher water retention.

Extensive research over more than 5 years at the University of Geisenheim and on numerous buildings confirmed the high water retention properties. However, in the mid-run these tests also revealed that the performance and the health of the vegetation were far below conventional green roof systems with standardize green roof components. Mineral wool manufacturers and green roof system suppliers stepped away from the idea of using mineral wool as a growing component for green roofs.

“Today we can see a revival of mineral wools in the green roof industry,” says Jorg Breuning, CEO, Green Roof Service LLC,” in countries with hardly any green roof experience, mineral wool is getting rather popular with potentially fatal results in the mid and long-run.” 

Especially in the United States, the market is growing rapidly for mineral wools on green roofs, disregarding existing studies and without extensive long-term tests. It isn’t even proven whether certain fibers can cause health problems, leach out chemicals or whether these components can be recycled when the green roof doesn’t perform anymore.

In 2012, the lack of performance of mineral wool as a vegetation carrier resulted in a major green roof restoration at Amsterdam International Airport. 90,000 square foot of green roof – built with mineral wool - had been taken off and replaced by a standardized green roof system. At this point, this was the largest green roof restoration in the history of mineral wool on green roofs. Costs that could have been avoided.


Doing it right in the first place.

Green Roof of the Year 2014

Green Team at Green Roof Technology, - Tuesday, September 09, 2014

 

Green Roof of the Year 2014 – 30 Years and Counting

The second oldest Green Roof Association* in the world, FBB (Fachvereinigung für Bauwerksbegrünung), awarded a prize for Green Roof of the Year 2014 to a 30 year old Green Roof on the Allianz Insurance Company in Stuttgart, Germany. Oldest Green Roof Association DDV (Deutscher Dachgärtner Verband).

The roof is one of the first projects where Jörg Breuning, CEO at Green Roof Service LLC / Green Roof Technology was substantially involved in the realization. Allianz Insurance Company decided in 1981 to build their local headquarters in the heart of Stuttgart. At that time the office building was already a big step forward for urban development in many regards. Along with very advanced, environmentally friendly technologies it was also one of the first buildings to achieve the split between living green working space and luxurious living in downtown of a large City. 

The Green Roof is generally assembled around the building and on different levels. Most people in the offices have a view into the green spaces.  Some areas of the Green Roof are accessible for coffee breaks and, on the highest floors there is usable garden space for the Condominium owners. The top floor even offers extensive lawn areas as playgrounds for kids.

All Green Roofs together measure over 21,000 sf. This inner city oasis utilized an advanced Optigreen Green Roof Systems with fully automatic high tide and low tide irrigation system in the mineral drainage layer. The plants “decide” when they need irrigation; no drop of water is wasted or can evaporate before reaching a plant. Neither a person nor electricity is needed to operate this fully mechanical system and it leaves enough room for precipitation to fill up the water storage under the plants. This green roof represents a smart combination of Blue Roof and Green Roof as Green Roof Service LLC / Green Roof Technology is still doing it on projects today. It is a foremost and 100% accurate irrigation system far beyond most irrigation systems that are operated by sensors, electricity, Apps, tubes, pipes or other highly vulnerable and expensive equipment  we see every day on projects in North America or around the world.  

The entire depth of this highly efficient Green Roof technology is approximately 18 inch and has allowed lawn, perennials, shrubs and small trees to grow for over 30 year without replacement or  changing out the growing media. 

Green Roof Service LLC / Green Roof Technology is proud of this Award and we are pleased to offer more information about it. We offer Green Roof tours for anyone interested in this kind of technology.

This has been a landmark project for more than 3 decades and we congratulate all who are part of this Award!

*Note: Oldest Green Roof Association in the world: DDV (Deutscher Dachgärtner Verband).

Green Roof of the year Green Roof of 2014 

30 years Green Roof / 2014  

 Picture 2013 Optigreen

Uneven Water Supply for West

Green Team at Green Roof Technology, - Tuesday, July 15, 2014

 

WASHINGTON, June 18, 2014 -- The final water supply forecast for this year shows the West divided into a wet north and dry south while snowpack has already melted in much of the region, according to data from the USDA National Water and Climate Center (NWCC).

Washington, most of Idaho, Montana, Wyoming and the northern parts of Colorado and Utah are expected to have near normal or above normal water supplies through the rest of summer, according to the forecasts. Far below normal streamflows are expected for the southern parts of Oregon and Utah, southwestern Idaho, California, Arizona, New Mexico and western Nevada.

Many of these areas are in the nearly 500 counties across the country experiencing drought, 57 of them in California alone, according to USDA disaster designations.

This year saw near-record low snowfall in parts of Nevada, California, Arizona, New Mexico and the southern parts of Utah and Oregon. Even with some May precipitation, those areas remain dry.  The biggest change this season was in the Washington Cascades. At the beginning of February the snowpack was about half of normal, but it recovered and most of Washington will have a near normal water supply from snowmelt, according to the Center. 

Spring snowmelt is well underway, according to NWCC hydrologist Cara McCarthy. “A lot of our SNOTEL sites have already melted out, especially those in the southern half of the West,” McCarthy said.

Colorado had mixed weather during May. “They had winter and summer all in one month: snowmelt, snowfall, snowmelt,” said McCarthy. Heavy precipitation combined with snowmelt, causing flooding in parts of the state.

Forecasters monitor conditions all year, but June is the final forecast of the season. “These are snow-based water supply forecasts,” McCarthy said. “Typically by July there won't be enough snow left on the ground (to measure).”

In Western states where snowmelt accounts for the majority of seasonal water supply, information about snowpack serves as an indicator of future water availability. Streamflow in the West consists largely of accumulated mountain snow that melts and flows into streams as temperatures warm into spring and summer. USDA scientists analyze the snowpack, air temperature, soil moisture and other measurements taken from remote sites to develop the water supply forecasts.

The NWCC water supply forecast is part of several USDA efforts to improve public awareness and mitigate the impacts of climate change, including drought and other extreme weather events. Through the creation of the National Drought Resilience Partnership, launched as part of the President’s Climate Action Plan, federal agencies are working closely with states, tribes and local government to develop a coordinated response to drought.

Since 1939, USDA has conducted snow surveys and issued regular water supply forecasts. View information by state.

Source: USDA


In dry years most Therophytes like
Asteriscus aquaticus are able to flower as very small plants and produce seeds that are able to survive evon more unfavourable seasons.

Leave Only Footprints, Take only Memories

Green Team at Green Roof Technology, - Wednesday, April 09, 2014

By: Samantha Yurek

 

Many people wouldn't think twice when gathering a lovely bouquet of flowers while out for a hike. But maybe this is a lesson we should all be practicing and passing down generations, when out enjoying the great outdoors. Transporting flowers for your own benefit is erroneous and punishable in certain situations. 

Although the United States doesn't have a specific law protecting wildflowers from being violently up-rooted, the Endangered Species Act of 1973 does cover all of the plants that are slowly vanishing.

Many states have specific laws regarding plants. For example, North Carolina's Plant Protection and Conservation Act states that it is unlawful "to possess any protected plant, or part thereof, which was obtained in violations of this Article or any rule adopted thereunder." If caught, fines can rise as high as $1000.

There are many reasons why you shouldn't pick wildflowers or take plants from the wild. Not only does it reduce the vibrancy of the location, but it also can be damaging to the environment. The USDA explains it perfectly, "We don't often realize it, but wildflowers support entire ecosystems for pollinators, birds, and small animals on a micro scale. Butterflies and other insects, small birds, and animals depend on seeds, nectar, and pollen for their food supply and life support system. In addition, some pollinators are not very mobile or have very small home ranges or depend on just one species of plant and die once their habitat has been destroyed."

In some cases, transporting flowers from the wild can also aid in the spread of invasive species.

 

It may not be your first reaction when someone goes to pick a few flowers, but just keep in mind that they are a living object as well, attempting to survive and reproduce just like the rest of us. And is it really worth picking these plants, only to have them wilt in a matter of hours or days? Especially when you could be enjoying them all spring and summer if you were to simply let them be.

So my advice to you is, instead of pocketing flowers from Mother Nature's garden, it is just as easy to take a short trip to your local nursery. Not only will there be a great selection on plants to choose from, you will directly be supporting your local community.

       Let me reiterate: 

Green Roofs, Green Infrastructure in Lancaster, PA

Green Team at Green Roof Technology, - Wednesday, March 05, 2014

Going Green Will Save Lancaster in Controlling Storm Water

Release Date: 03/04/2014
Contact Information: David Sternberg, 215-814-5548 sternberg.david@epa.gov

-New EPA Report Documents Savings-

(LANCASTER, Pa. – March 4, 2014) The U.S. Environmental Protection Agency (EPA) released a report today that found green infrastructure can be a cost effective solution to controlling stormwater while providing numerous economic benefits. Using the City of Lancaster as a case study, EPA sought to quantify the economic benefits associated with utilizing green infrastructure for controlling wet weather pollution.


Mayor Rich Gray

“Cities like Lancaster are leading the way in creating cost-effective and innovative solutions to the stormwater challenges we face today,” said EPA Regional Administrator Shawn M. Garvin. “By keeping rain water from coming into contact with pollution in the first place, green infrastructure improves water quality while making communities more livable.”

The report estimated that within the combined sewer system (CSS) area, Lancaster’s green infrastructure plan will reduce gray infrastructure capital costs by $121.7 million and reduce wastewater pumping and treatment costs by $661,000 per year. It will also provide approximately $2.8 million in energy, air quality, and climate-related benefits annually.

These benefits exceed the costs of implementing green infrastructure, which were estimated to range from $51.6 million if green infrastructure projects were integrated into already planned improvements to $94.5 million if green infrastructure projects were implemented independently.

"The City has invested more than $25 million over the past decade in ‘gray infrastructure’ improvements to increase the capacity of the City’s wastewater system,” said Lancaster Mayor Richard Gray. “In spite of this investment, a significant amount of untreated combined sewage continues to overflow into the Conestoga River and eventually into the Chesapeake Bay. Green infrastructure will help reduce the volume of storm water entering our wastewater system and, at the same time, transform the City into a more sustainable, healthy community.”

Unlike single-purpose gray stormwater infrastructure, which uses pipes to dispose of rainwater, green infrastructure uses vegetation and soil to manage rainwater where it falls. By weaving natural processes into the built environment, green infrastructure provides not only stormwater management, but also flood mitigation, air quality management, and community revitalization.

In 2011, the City of Lancaster released its comprehensive green infrastructure plan. Developed with the assistance of city, county, and state agencies, the plan identified opportunities for adding green infrastructure throughout the city within 5-year and 25-year timeframes; estimated the water quality benefits and articulated a series of policy, outreach, and technical recommendations for implementing green infrastructure in the city.

Because of the plan and the city’s interest in understanding the added benefits of green infrastructure, EPA selected the City of Lancaster to serve as a case study for calculating the additional environmental, social, and economic benefits.

“Valuing multiple benefits of green infrastructure ensures water management investments by the City will help beautify, provide a safer, healthier and more prosperous community,” said Liz Deardorff, Clean Water Supply director at American Rivers.
“The results of this study affirm that green infrastructure has multiple benefits for both large and small cities needing to reduce pollution and ensure clean water.”

 

Lancaster, like hundreds of other cities across the country, has both a combined sewer system (CSS) and a municipal separate storm sewer system (MS4). While the CSS collects both sewage and stormwater and conveys flows to a wastewater treatment plant, the MS4 collects only stormwater runoff and discharges flow directly to receiving streams.

The report summarized how installing green infrastructure in the CSS area could reduce gray infrastructure capital investments and associated wastewater pumping and treatment costs; as well as how installing green infrastructure in both the CSS and MS4 areas could produce a range of environmental benefits across the city.



A copy of the report can be accessed at this link:
http://owpubauthor.epa.gov/infrastructure/greeninfrastructure/gi_csnortheast.cfm

Only Natives on Green Roofs?

Green Team at Green Roof Technology, - Monday, February 17, 2014

By: Jörg Breuning

In 1999 North America discovered that modern green roof technology is more than just an exclusive garden for a few wealthy people on top of a building. Experts understood very quickly that there are unmatched advantages of bringing back nature into locations where it was before.

With this enthusiasm, a lot of environmentalists and environmental organizations started to notice various opportunities to improve, simplify or promote themselves in many ways. Some of these ideas might sound glamorous, but the bigger picture concerning nature, is often disregarded.

In a previous blog post we reported about the ridiculous reductionist research of comparing reflective roofs with green roofs. Today we want to focus on the hype of native plants for green roofs:

Many Americans call a living organism native if these organisms have been on this continent before North America was discovered by European settlers. In their naivety, they have completely forgotten how the Natives have discovered and have lived on the land hundreds to thousands of years before.

So called Native people did the same as any organism; they expanded from their original locations to secure the species. While migrating and expanding over continents, all living organisms will change their environment accordingly. Microorganisms like bacteria or macro organisms like humans follow in the same footprints in evolution. The migration of European settlers did that as well and eventually became 'native'.

For most American people (as mentioned on Wikipedia) the opposite of native is "invasive". This discrimination is completely ignorant to the fact that something must be introduced first before it is invasive, encroaching, or just simply trespassing. 

It is even a bigger discrimination and ignorance of God's creation or evolution (whichever you prefer) when these people ( a lot of them call themselves experts) tell us that approximately 1,000 hectares of Bamboo scattered across the USA are a problem for when they call native species. However, at the same time, 1,000,000 hectares (1,000 times more) of genetically modified corn is not a problem. On top of this blatant discrimination, these 'tunnel-view' educated people (including LEED™) are pointing out that roofs are an ideal place for what they deem native plants.

Rooftops might be a stepping stone environment for plants that have been in North America for many thousands of years but when we try and set them up in a new place it is like a conversation of a narrowed down selection of species and disregarding the entire picture. It is obvious that history repeats itself - there are still existing reservations for Native Americans and we all know what effort this was, how discriminating this was and how much diversity, knowledge and inspiration we have lost. We are essentially treating native plants in the same way and that has nothing to do with environmental protection.

These so-called native plants must have a so-called native environment and require all the natural players (other living organisms) to thrive.

* Jeffersonia diphylla for example depends on ants to spread and what building owners want to have colonies of ants?

* The big family of Trifolium (stamped as a weed by nurseries) requires the stiff hair of animals to fulfill their natural calling - how many deer of bears do you want on your roof?

* Or shall we shoot all the birds that spread seeds from introduced trees?

The point of this blog is that any type of nature is better than covering the ground with impervious surface areas like asphalt, concrete of ground mounted solar factories. All our environmental issues are caused by the loss of natural environments. It is also much cheaper to protect these natural environments where they are and avoid relocation into reservations (such as rooftops). Simply by reducing footprints of man-made structures and concentrating human settlements to specific location allows these so-called natives organisms to thrive and to continue their journey of evolution.

An Upstream Battle for Green Roofs?

Green Team at Green Roof Technology, - Wednesday, January 29, 2014

By: Jörg Breuning

Every now and then we find studies comparing green roofs verses white roofs. It seems like and up-stream battle for the green roof industry against the big profits that are being made in the roofing industry with reflective water proofing membranes. All manufacturers of roofing material know that a reflective membrane will sell easier and with a higher profit than a traditional black tar roof. It is cheaper in production, and with the right crew, easier to install as well. In addition, because of the environmental benefit (discovered by LEED), the pricing can be more expensive.

Covering this membrane with a green roof should increase the profits - so we think. In reality, it isn't the case because the lack of horticultural understanding and human's natural fear of nature make it a high risk factor or even a potential lawsuit. Stockholders and risk managers for large roofing manufacturers offer green amenities (because this is good for their image), but never pressure these offers. Unfortunately, for roofing companies, protecting the revenue and profits is of higher priority over the environment and real sustainable practices.

It is no secret that selected manufactures support Universities in order to preform research on reflective membranes verses green roofs. These manufacturers tell the researchers precisely what to say and do so their reputation thrives. Since research jobs are not plenty full and Universities have the same economic pressure as roofing manufacturers, the results of this research may be questionable.

In an older selective or reductionist study at Lawrence Berkeley National Laboratory, the so-called scientist went a step further. Writing a paper, clearly motivated by manufacturers, they described their data as somewhat sparse - does that mean worthless?

We still try to understand the words that are used in this study:

"Somewhat" = to a moderate extent or by a moderate amount

"Sparse" = thinly dispersed or scattered

We at Green Roof Service LLC/Green Roof Technology don't need simplyfied research that says "maybe yes" and "maybe no" in one sentence without considerations of the entire picture. Many people in the green roof industry don't have a scientific backing, but it is a great gift that they have common sense and understand that bringing back nature to where it previously resided is way better than covering the earth under a white burial shroud.  

The bear in the stream catching the battling salmon can't extinguish the species - as long as the water is clean. If the water is polluted because of the lack of nature in our built up Cities, there won't be any salmon left and the bear will shortly become extinct as well. Responsible research and researchers can help keep our waterways and neighborhoods clean - or address a topic holisitc.

See also our blog post: 

White Roofs are Better than Green Roofs!

http://www.greenrooftechnology.com/green-roof-blog/white-roofs-are-better-than-green-roofs

 

White Roofs are Better than Green Roofs!

Green Team at Green Roof Technology, - Friday, January 24, 2014

By Jörg Breuning

According a study from prestigious researches at LawrenceBerkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, United States and School of Mechanical & Aerospace Engineering, Nanyang Technological University, Singapore, reflective roofs have a higher value for building owners than Green Roofs.

Julian Sproula, Man Pun Wanb, Benjamin H. Mandela and Arthur H. Rosenfeld developed a study that clearly explains the monetary benefits of reflective roofs v.s. Green Roofs v.s. traditional roofs. In their reductionist research, the outcome for green roofs is not good.  In a press release they stated:” The researchers acknowledge that their data are somewhat sparse but contend that their analysis is valuable in that it is the first to compare the economic costs and energy savings benefits of all three roof types.” It isn’t the first time – I have seen many worthless studies before…  

I am anchored in the Green Roof Industry since 1980, I roll my eyes and shake my head about counterproductive statements and studies like that. In the yellow pages they would have found somebody who could have told them differently and how to spend the generous money from the industry (other than green roof industry) much better – actually in building a Green Roof. Even when building a Green Roof doesn’t help the building owner (according their study) it would have helped the environment.

Bringing back nature into a location where nature was before is simply the best you can do!

My advice: Don’t start covering your Green Roofs or entire nature with a white piece of plastic – just don’t believe every written word on the internet or commercial reductionist research – Use your gut feeling and think out of the box!

This blog post represents the opinion of Jörg Breuning. If you have another opinion please feel free to contact me.  

Here is a link to the Study.



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