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Solar Gardens Made Easy

Green Team at Green Roof Technology, - Thursday, September 12, 2013

Here at Green Roof Technology we are actively helping commercial, municipal and not-for-profit clients generate renewable energy and control stormwater for a cleaner tomorrow.

The Solar Garden Roof System is rapidly growing in popularity.  The benefits of our combined solar and green roof system are unmatched.  Additionally, the Solar Garden Roof System can be 50-60% less expensive than a 4" extensive green roof.

We provide a number of services for our clients.  They include the following:

  • Provide professional designs and engineering,
  • Maintenance programs for your Solar Garden Roof,
  • Secure 25 year Roof and Solar Warranties,
  • Help secure commercial solar financing,
  • Offer SREC brokerage,
  • Perform leak detection,
  • Assess roof membrane condition.
  • Utilize local professional labor resources,

Call us today for a Free Estimate & Analysis:

Using satellite imagery, we analyze factors that affect your Solar Garden Roof design such as south-facing roof location, shaded areas and available roof space.  We will also study your monthly energy usage and future energy plans so that we can create the best system for your needs.

Additionally, business owned PV systems are eligible for tax advantages, such as accelerated depreciation and a thirty percent Federal solar investment tax credit.

Call us today to see if a Solar Garden Roof System is right for your roof.  


Highlighting Baltimore Green Roofs!

Green Team at Green Roof Technology, - Monday, September 09, 2013

By: Samantha Yurek

With a growing number of green roofs appearing, the city of Baltimore is slowly climbing up the green ladder. I wanted to take some time to highlight a few green roofs located right in our neighborhood. In a dense urban setting, green roofs can play a huge role in sustainability efforts because of their ability to mitigate storm water during large rain events. Urban watersheds are especially vulnerable to environmental issues consequence of a high density of people mixed with large amounts of impervious surface area.

 

 1. Baltimore's National Aquarium


Created to aid the aquarium's conservation efforts, the extensive green roof atop the National Aquarium in Baltimore stretched for 4,000 square feet. Built in 2005 by the Furbish Company, the flourishing roof has been a pleasant addition to the inner harbor.

2.  Hilton Hotel


The largest of them all, at 32,000 square feet would be located on the Hilton Hotel, installed by the Furbish Company in 2008. Adjacent to the Baltimore Convention Center and Camden Yards, the hotel has 757 rooms available. The green roofs reside on both the east and west wings of the building and create additional outdoor green space for citizens to enjoy.

3. Baltimore Convention Center


The Baltimore Convention Center followed in 2010, with the Barrett Company working to install a 15,000 square foot green roof. Doubling as a recreational area, this roof has been transformed into a green oasis in the heart of an urban space.

4. Mary Catherine Bunting Center at Mercy Medical Center


Also in 2010, Mercy Medical Center stepped up and installed three green rooftops to assist with patient health. With 17,500 square feet, these intensive green roofs are also viewed from many of the patient's windows. This project was completed with the help of Mahan Rykiel Associates.

An increase in green space in Baltimore is a fantastic step toward a more sustainable city. Keep up the good work Baltimore!

 

 

Herbicides in Green Roof Runoff Polluting Drinking Water

Green Team at Green Roof Technology, - Tuesday, July 23, 2013

The issue of root penetration is known to most in the green roofing industry.  The relatively complex world of roofing membrane compounds and organic chemistry has resulted in most green roof professionals defaulting to local instructional manuals, which default to FLL testing records.  But just because a material is effective does not mean it is not harmful, e.g. lead in paint.

In 1997, Bayer Aktiengesellschaft was the assignee of Patent US 5672568 A titled “Root growth inhibitors for building materials comprising monohydric alcohol esters of mecoprop.”   Root-resistant bitumen mixtures were soon marketed.

This past week the Berlin Senate’s Department for Urban Development and Environment and the Berlin State Office for Health and Social Affair published a series of recommendations for the prevention of environmental pollution due to the release of the herbicide Mecoprop from root-resistant bitumen membrane sheets. 

The statement reads:

Investigations at the Swiss Federal Institute for Water Resource and Conservation (EAWAG) on behalf of the Swiss Federal Office for the Environment (FOEN) have shown that Mecoprop under natural weather exposure is released from the bitumen sheets and the precipitate is washed out.

Rain water contaminated with Mecoprop can pollute combined sewers or surface waters.  Due to the low rate of elimination in sewage treatment plants results in a particularly high risk potential.  In a decentralized rainwater infiltration system there is a risk of soil and groundwater contamination.   (Translated from the German)

The report goes on to make simple recommendations.  The first says the use of bituminous membranes impregnated with Mecoprop should not be used unless absolutely necessary for structural reasons.  Second, they should never be used in protected water areas.

Since the issuance of Patent US 5672568 A, there has been a series of scientific papers published reporting the leaching of biocides from bitumen waterproofing.  They can be found here, here and here

Green Roof Technology is against any use of herbicides in green roof construction or maintenance.  For more information on how to protect your building against root penetration without the use of poisonous herbicides please contact our office.  

Episcopal Academy Installs More Green Roofs

Green Team at Green Roof Technology, - Wednesday, July 10, 2013

On July 9th, three more small extensive green roofs were installed a top the Academy’s High School Building in Newtown Square, PA.  The High School has a number of glass walled hallways that look out over unsightly black rooftops.  The glass walled hallways provide a spectacular viewing area for the green roofs.  This year we covered almost three times as much roof area as we did last year, bring the Academy’s total green roof count to five.

Once again, Micah from Urban Ecoforms joined us to lend his experienced hand at installing green roofs.  From the picture below you can see that Micah was in rare form and simply thrilled to be freed from his recent solitary confinement atop his current project in West Philly.

While we were installing the green roofs, we could not help but stop and admire the incredible lushness of the green roofs we installed last summer, especially when last July was brutally hot and dry.  


Micah Shapiro (Urban Ecoforms) striking a pose with the beautiful Academy's quad in the background.  

Andrew after spreading the last of the Sedum cuttings.  Seen below is one of the green roofs we installed the previous summer.


Nation’s largest Solar Garden Roof

Green Team at Green Roof Technology, - Wednesday, July 03, 2013


Photo courtesy of Elkus Manfredi Architects and BHC Architects.

Green Roof Technology is proud to announce their partnership with BHC Architects to design the largest Solar Garden Roof in North America.  The Solar Garden Roof will rest atop the new, soon-to-be build Exelon headquarters in Baltimore, MD. 

Exelon’s office tower will be the tallest building in the upcoming Harbor Point multi-use business park, scheduled for completion in Fall 2014.  

The Exelon headquarters rooftop will house a 40,000 sf green roof and an estimated 400 Sun-Root™ Modules, which will generate approximately 120,000 kWh’s a year.  This will be the largest Solar Garden Roof in North America.

For more information about the Solar Garden Roof System and to see a short video of how it all comes together, please visit:  http://www.greenrooftechnology.com/solar-green-roof.


Green Roofs and Stormwater Fee

Green Team at Green Roof Technology, - Friday, May 17, 2013

Green Roofs Can Reduce Stormwater Runoff, Reduce Stormwater Fees!

By: Rebecca Gullott

Not many Marylanders are happy about paying the new stormwater fee or “rain tax” as it has come to be known. The county imposed fee is based on the amount of impervious surface such as rooftops and driveways on each property (cost-by-cause principle). In Howard County alone there are over 19,000 acres of impervious surfaces that contribute to pollution of local streams and the Chesapeake Bay. 19,000 acres are almost 30 sq miles or 11% of the counties size- more than double the size of all water ways in the county! No wonder that Stormwater runoff is responsible for over 20% of pollution into the bay.

Those wishing to lessen their stormwater fee can reduce the impervious surface area on their property through smart design and management practices. Howard County is providing instruction and incentives for citizens to do just that. Howard County Stormwater Management Division has partnered with several organizations including the University of Maryland Extension to help citizens take control of their environmental impact. Rainscaping workshops will be offered this summer to show residents how to plant and maintain rain gardens and native species; as well as compost waste and use rain barrels to collect roof runoff for use in lawn and garden irrigation or car washing. Howard County is offering free rain barrels at the Alpha Ridge Landfill select Saturdays April through September. Other Maryland Counties have similar programs so check your county’s website to see what offerings are available.

Property owners can receive credits for on-site improvements that reduce impervious surfaces. Whether it’s establishing a rain garden in the yard or incorporating planted areas or green roofs into the company’s parking lot, these incentives may encourage citizens to take control of their environmental impacts. These changes may help to reduce the need for future stormwater fee increases and promote a healthier Chesapeake for years to come.

The possitive impact for the environment by implementing cost-by-cause fess is very effective in many other counties and States in the US and over decades in Europe.

The Solar Boom

Green Team at Green Roof Technology, - Wednesday, May 08, 2013

By: Samantha Yurek

 
Photo Credit: The Solar Foundation

It is obvious the solar industry has been growing steadily, but an ongoing study by the Solar Foundation has uncovered to the extent in which the industry has expanded thus far. Solar workers now outnumber many of our larger occupations in the United States. Currently, we have more solar workers than coal miners in America, and the industry hasn't seized growth yet. The Solar Foundation released an interactive map naming the top three states with the most solar jobs as California, followed by Arizona and New Jersey. Most of these jobs are listed as installation positions, but others include manufacturing, project development, sales and distribution.

The new integrated Sun-Root™ System can help achieve both clean energy production along with additional benefits of a green roof. The Sun-Root™ System is the most advanced system solution that considers both enhanced water storage for the green roof plants and optimized evaporative cooling for solar panels.

 

Irrigation on Extensive Green Roofs

Green Team at Green Roof Technology, - Thursday, May 02, 2013

By: Jörg Breuning

The main purpose of an extensive green roof is stormwater retention and delaying stormwater runoff amongst many other added values.
 
Above: An Irrigated Green Roof 

In the last decade, I've seen many green roofs where the intended plants never really flourished. I estimate that in the US at least 50% of the green roofs are not performing to their fullest potential. This can be observed by simply looking at the most obvious of indicators, the plants themselves, regardless if they were planted on purpose or somehow found the space to take root.  Most of these less healthy extensive green roofs are pre-planted boxes, or commonly known as modular systems. Not only are these systems much more costly, the mid to long term results are often far below systems that are assembled in place and at the time of installation.

I know that the transition from being a common nursery-grown plant (including pre-planted boxes) to the extreme environment of a rooftop poses severe challenges. Green roof plant nurseries typically have "great" advice and recommend the installation of temporary or more permanent irrigation systems. This advice is defeating the purpose of an extensive green roof and shows that asking self-appointed experts can cause a spiral of failures. Since many green roof installers lack the proper horticultural knowledge, they may not be able to identify problems by simply looking at the indicators (the plants). This could cause the problem to gain momentum. In addition, the false conclusion that technology (Google search, Apps, synthetic growth media or sophisticated soil moisture control devices) can fix the problem supports my theory of less experienced or misinformed green roof professionals. They rely heavily on technology to fix any issue and miss the big picture. Nature has the ability to take care of itself, as long as the appropriate design, materials and plants are used in addition to being familiar with the immediate climate.

Green roof designers and green roof professionals must understand that less is often more when it comes to extensive green roofs. No building owner wants to irrigate their roof in short, mid or long terms. There is no need to make a green roof more complicated by using multiple synthetic or plastic layers. LEED™ certification supports using gray (recycled) water for green roof irrigation; but what is the point of watering an extensive system when it's main purpose is to retain stormwater? Common sense and experience are the only two things that will aid in planning the perfect green roof.


Above: An Unirrigated Green Roof

Implementing irrigation on an extensive green roof is a clear sign of not understanding the basic principles of horticultural techniques or the laws of nature. Irrigation reduces the water retention, increases the nutrient pollution in runoff and requires higher fertilization application. Irrigated extensive green roofs are not environmentally friendly, not economically feasible and have hardly any payback for the building owner.

I tell my clients if they have an offer or design for an extensive green roof that includes irrigation - be cautious!

 

Green Roof Technology Partners with Anacostia Watershed Society

Green Team at Green Roof Technology, - Friday, April 19, 2013

By: Samantha Yurek


Photo Credit: Anacostia Watershed Society

Green Roof Technology has recently partnered with the Anacostia Watershed Society; an organization dedicated to keeping the Anacostia River clean and healthy. Through our partnership we hope to achieve a common goal to increase green spaces and to protect our Anacostia River watershed which runs through our nation's capital and into Maryland. Since 1989, the Anacostia Watershed Society has been the first organization dedicated to protecting the Anacostia River.

ThAnacostia Watershed Society had recently put forth a Green Roof Rebate Program, aimed to encourage residents and building owners to reduce their stormwater runoff on-site and decrease the burden on the District's Combined Sewer Overflow. Available for residential, commercial and institutional properties, this rebate program will reimburse you with $5 per square foot of green space implemented on the property.For most commercial green roofs, that rebate can reduce your overall costs dramatically.

The District Government's Green Roof Rebate Program is administered by the Anacostia Watershed Society and encourages to contact us to see if they are eligible. Feel free to check out the Anacostia Watershed Society homepage here.


Photo Credit: Anacostia Watershed Society

Stormwater Fee Looming Overhead

Green Team at Green Roof Technology, - Thursday, April 11, 2013

 By: Samantha Yurek


Photo Credit: The United States Geological Survey

The Chesapeake Bay is the heart of Maryland. Not only does it fuel our economy and recreational activities, with over 64,000 square miles it is home to over 2,700 different species of flora and fauna. It is an important resource that should be cared for adequately.

Excessive runoff is a huge culprit of transporting trash, chemicals, nutrients, along with other things that end up polluting the bay. With storm season lurking around the corner, Maryland is trying to prevent these mini flood events from polluting the Bay even more.  To mitigate for these rushing stormwater events, stormwater fees  will soon be added to everyone's quarterly water bill. There is no avoiding this fee that will essentially be paying for the impervious surface area one has on their property. Residential properties won't have such a heavy fine, but businesses may have to start paying a pretty penny. For example, take a look at any mall, the entire property is a combination of roof and blacktop.

The stormwater fee may be something you worry about, but there are ways to reduce the fees.  Planting trees, implementing rain gardens, and most importantly, adding vegetation to your rooftop are all proven ways to earn credits toward reducing the cost of the fees. Let's strive to keep Maryland beautiful; the Chesapeake Bay thanks you.


Photo Credit: Green Roof Technology


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