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Green Roofs and Fireworks

Green Team at Green Roof Technology, - Friday, December 30, 2016

 

 Green Roofs and Fireworks

Practically all dry organic materials are combustible at relative low temperatures. Roof shingles or many waterproofing membranes on roofs are typically petroleum-based products (including Asphalt) and there is hardly any difference to dry organic materials. Some products are equipped with chemical fire retardants that could decrease the risk of spreading fire, unfortunately not the risk of leaks cause by heat and impact.


The living vegetation of fully functional and well-engineered green roofs contains moisture and most plants (especially succulent plants on large extensive green roofs) have a fraction of the energetic potential comparing to all other components used in a building. The green roof growing media (soil for the green roof plants) is a blend of different mineral components with an organic content of typically less that 15%. It is practically impossible to set this material on fire – even when the natural moisture content is not considered.

Fires or leaks on non-vegetated roofs caused by consumer or display fireworks could have been prevented if the building would have had a fully functional green roof without mono-culture vegetation, or if conventional roofs would be well-maintained (regular removing of organic debris from the roof and gutters).

 

Certainly a fire is the worst-case scenario; however in most cases smoldering firework parts (and cigarettes) are only causing leaks on unprotected roofs that are discovered much later and relate to costly repair. Roof warranties typically don't cover any sort of mechanical impact and they are -again- worthless. See blog post from 2014.

 

Any sort of fireworks damages or many other mechanical impacts are unknown on functional green roofs. Green roofs prevent leaks or even a fire and so it is the best payback is right there.

See also Fire Safety on GreenRoofs

Nature is (literally) so cool.

Happy New Year!

 

How to Maintain a Green Roof During Holiday Season

Green Team at Green Roof Technology, - Monday, December 19, 2016

Green Roof Maintenance During Holiday Season

Do it like Santa Clause!

During Holiday season, Santa Clause and his Reindeers simply enjoy their Green Roof. Certainly, every Green Roof requires project specific maintenance and when this is well organized, professional, and done by experienced people, there is no reason to be concerned. Something the Easter Bunny even knows while he eats the fresh lettuce on a roof top farm.

In the southern hemisphere, the year-end is during summer and all above applies as well.

The reason why this works around the globe: Plants cannot read a calendar. They are much more advanced and able to adjust to the current conditions in no time. They take every day as it comes and with a row of days they “know” in what direction they have to adjust and prepare.

If there is a problem on a Green Roof, it is typically caused by humans and their desperate conception of tidiness or hopeless desire to control nature. Whether they try doing by squeezing many plants in a tiny plastic box, using endless “engineered” layers, use materials that might serve a different purpose, or run an irrigation system whenever they see a weather application alarming them on their smart phones.

Sometime people like train plants to do what people want and create a dependency of the plants on humans. If you are such a control freak you might have a lot to do during the Holiday Season.

Green Roof Service LLC – Green Roof Technology does what the plants need and want. We understand the plants. Hence, our clients and we can lean back during the Holiday Season and enjoy this fabulous time with friends, family, and our pets – in house, outside, or on the Green Roof.

Happy Holidays!

Solar Garden Roof team and

Jorg Breuning and GRT-Team

see also:  Winter Maintenance for Green Roofs

Green Roofs North America

Green Team at Green Roof Technology, - Friday, July 22, 2016

 

Does this ever happen in North America?

While in North America the average size of Green Roof is around 8,000sf this size would be considered a small size Green Roof in Germany. The average size in Germany is likely over 25,000 sf and the amount of Green Roofs build every year is probably 10 times higher.

Despite higher energy costs, the costs for the installation are lower in Germany because they build them in less than the half time, with fewer people, with hardly any middle men, without pre-planted plastic boxes and without consistently reinventing the wheel.  They don’t try to sell warranties – they are actually installing Green Roofs. They also spend no or less time posting their projects on all social platforms and don’t need to say this is the biggest, nicest, most divers, highest or any other superlatives.

They just do it because they understood the environmental and social benefits of Green Roof mass production instead of trying to grow one carrot in a city for millions of people just to be on TV. Green Roofs in Germany are done for everybody vs. in North America it is often done for personal vanity.

16 years of North American Green Roof industry and still researching? When does North America think big?  

United States of America and Green Roofs

Green Team at Green Roof Technology, - Tuesday, June 14, 2016

Construction Going Up – Ecology Going Down?

From 2010 to 2015 warehouse new construction in the US tippled from around $5 Billion to $15 Billion with all the economic benefits. 15 Billion in new construction equals around 1000 new warehouses every year or approximately 250 million square feet rooftops plus the same amount of infrastructure provision. Annually, 500 Million square feet or 8800 football fields of lost nature by building new warehouses in the United States alone.

Green Roofs in North America?

With some of the existing warehouses, this translates to a potential of at least 1 Billion of square feet of new extensive Green Roofs every year that could retain the volume of Lake Constance that is surrounded by three countries (Germany, Switzerland and Austria) or over the double volume of Lake Powell (UT/AZ)!

Assuming that these Green Roofs are done right, maintained by professionals and without artificial irrigation, the natural and controlled succession of these Green Roofs would allow a unique habitat for many endangered species over the upcoming years.

These green roofs can also reduce the re-roofing costs by multiple billion Dollars with a related relieve for landfills and a huge reduction in energy use.

Most important however is the climate effect.

Warehouse belts surround any large city in North America. These warehouse belts with endless impervious areas actually preheat the air that is conveyed into our cities by the wind. In the worst-case scenario, these large warehouses have reflective roofing membranes that might cool the building but also increase – due to reflection – the heat in the atmosphere substantially.

Warehouse belts around cities are like a forced air heating system in a building only on a much larger scale – Warehouse belts are a wasteful forced air heating system for entire cities

Fundamental sustainable thinking and large scale long-term research hardly exists in the US, so it is no wonder that experts are likely to miss the entire picture.

Currently in the US there are no significant requirements or ecological considerations in master plans that address this counterproductive climate habits towards our cities. Actually, it seems that warehouse belts grow faster than Green Roofs!

North American ecological organizations, LEED, or other industry associations are also missing the bigger picture. They often work locally – from one block to the next, they are focused on one or two rare plants, on a distinctive bee species, butterflies or other human pleasing critters as long as there is an instant payback in popularity. It seems worth more having a highly unsustainable fully irrigated Green Wall in the cafeteria, a nice green plaque on the wall, or growing some carrots on the roof to demonstrate social and sustainable responsibility. Most marketing efforts for green washing are beyond the costs of a simple highly efficient extensive Green Roof that helps the future generations.    

Warehouse belts are heating American cities

The United States is a great country and North America is a large continent where thinking big was always wanted and welcome. Now it seems people are getting lost in their little plastic boxes, made in China with some nice flowers and a watering can next to it.

It is very romantic but also very embarrassing.

Natural Blow Job

Green Team at Green Roof Technology, - Monday, May 30, 2016

Natural Blow Job

Like an endless army of parachutists released from an airplane, seeds and fruits travel the wind currents and gentle breezes of the earth, possibly colonizing a distant mountain slope or fertile valley potentially 1000 miles from their origin. Literally hundreds of species in many plant families have adopted this remarkable method of dispersal and make the promoters of native plants look like a fool.

Imagine a little parachutist seed can fly 1000 miles in ten days it still takes probably 20-30 generations and 15-20 years getting around the globe. Seeds found in hail or high altitude air samples confirm that this is not a fiction.

Plants have very limited mobility and consequently rely upon a variety of dispersal vectors. Wind is only one and there are many other smart ways. The easiest might be humans. If a plant gives humans a trade-off (nice flower, fruit etc.) they can carry them as far and nowadays in a much short time.

Relocating to a faraway location isn’t always successful but it is necessary for the specie to survive in evolution where natural and manmade forces might eliminate the original place. Especially under fast changing climate conditions it is important for specie to stay flexible or to mix with similar species to create more resident ones.   

Comparing to this smart and self-sustaining way of plants, many humans make themselves to fool by either helping to transport the plants or by categorizing plants into native and non-native.  Doesn’t it sound like schizophrenia when you get a LEED point for native plants on a 500sf Green Roof downtown Manhattan and at the same time(GMO) corn is grown on almost 100,000,000 acres across the US?

There is no question that the worlds Gen-pool of all organisms must be preserved but the way as it is approached seems in most cases unprofessional and desperate.  Being 45 years a gardener, I understand that nature has its own way – we can be part of it but we can’t be the director of it.

 

Green Roof Failures

Green Team at Green Roof Technology, - Wednesday, May 18, 2016

Do Green Roof Failures increase with Roofing Manufacturers?


 

 

In the last two days I visited four of my projects that are between 14 years and 1 year old.

Each of these Green Roof has an own interstesting history and with the exception of the “cozy” Green Roof, each of the extensive green roof host over 25 and 40 plant species in excellent health.

None of them was ever irrigated and the oldest was fertilized the last time 10 years ago. All of them require hardly any maintenance (2 hours per 5,000sf / year).  One Green Roof is maintained only once every 3 years.

 

For these amazing, inexpensive and resilient green roofs a special thank to all who participated!

 

In contrast:

I was on one roof that was installed and maintained by a roofing company with materials from a famous roofing manufacturer.   This roof is basically going down the drain because of incompetence, sloppy work, and inappropriate materials.

This roof came with a costly single source warranty that –as always – doesn’t cover anything of the green roof. The cost for this worthless application was around 25% higher than a fully functioning Green Roof from well trained gardeners.

 

This is one of many projects around the Nation where I am questioning myself whether roofing manufactures and roofing companies should work in the Green Roof field. As a matter of fact in last decade 90% of roofing manufacturers offered Green Roof Systems that consistently underperform or that are not maintained properly. Actually most of these manufactures changed their systems and approaches to Green Roofs more often than they changed the management of these multi-million Dollar corporations. 

While many of these manager focuses on how increase revenue and some of them how to fix the problems with Green Roofs their quality of the waterproofing and craftsmanship of their installations went down. Striving for more revenue is not a wrong thing in general but when this is done on the backbone of the Green Roof industry and our all prospect clients it is more than questionable.

As client you have to figure out whether it is more important to make unknown stockholder happy or yourself.

I don’t fall for roofing warranties and sales forces with nice brochure

This particular roof will be recovered by an extensive weekly maintenance program until the end of the year and a monthly maintenance program for the entire next year!  

First Extensive Green Roof in the Dominican Republic

Green Team at Green Roof Technology, - Thursday, January 21, 2016

First Extensive Green Roof in the Dominican Republic.

More than 12 years ago my friends Miriam and Buschi decided to settle in Las Terrenas, Dominican Republic to educate the local people and tourists about animal welfare and a better interaction between humans and animals.

An awesome story that has grown and created support from all around the world. Universities, veterinarians and engaged individuals from North America and Europe spend their free time by helping them with hard work and donations, making a better life for animals and humans.

 

Beside their endless efforts for animal welfare their home has two large extensive green roofs that flourish since 12 years. It is quite an effort finding the right plants that can survive on less than 3 inch of soil mix. A thick, flexible, non-bituminous and root resistant waterproofing is the only German product of the green roof system. All other components were sourced locally and evolved over the years.

 

These green roofs are the first in the Dominican Republic and represent the basics of modern green roof technology – simple and effective without plastic elements or pre-planted containers.    

http://www.amigos-de-lucky.org/

https://www.facebook.com/Amigos.de.Lucky


 

Fireworks, Green Roofs and Happy New Year!

Green Team at Green Roof Technology, - Thursday, December 31, 2015

 

Fireworks, Green Roofs and Happy New Year!

Practically all dry organic materials are combustible at relative low temperatures. Roof shingles or many waterproofing membranes on roofs are typically petroleum-based products (including Asphalt) and there is hardly a difference to dry organic materials. Some products are equipped with chemical fire retardants that could decrease the risk of spreading fire, not the risk of leaks cause by impact.

The living vegetation of functional and well-engineered green roofs contain moisture and most plants (especially succulent plants on large extensive green roofs) have a fraction of the energetic potential comparing to all other components used in a building. The green roof growing media (soil for the green roof plants) is a blend of different mineral components with an organic content of typically less that 15%. It is practically impossible to set this material on fire – not even considering its natural moisture content.

Potential fires or leaks on roofs caused by consumer or display fireworks can be prevented if the building has a fully functional green roof.

A fire on any roof is the worst-case scenario. I many cases smoldering firework parts (and cigarettes) are causing leaks on unprotected roofs that are discovered much later. These problems are unknown on fully functional green roofs. When a green roof prevents a leak or even a fire it is typically not recognized but will save expensive repair or even loss of a building.

Nature is (literally) so cool.

Happy and successful green 2016!

 

Zero Run-Off for 20 Years

Green Team at Green Roof Technology, - Sunday, December 06, 2015

Zero Run-Off for 20 Years!

 

The Kriegbaum Logistic Center and production facility is located in southwest Germany. This extensive Green Roof in Bondorf was designed by Stötzer + Neher Landscape Architects primarily as a nature roof for advanced water retention.

This project demonstrates over 2 decades using Green Roofs as a storm water management tool. The entire complex containing the two huge warehouses and adjacent parking areas has no (zero) run-off to the sewer system. All rainwater is retained, treated and infiltrated into the ground water on-site. All components were tested to avoid any contamination of the ground water. The infiltration water (run-off) is consistently tested for water quality. Since the project often has no run-off it is impossible to perform water tests – no run-off = no pollution.

Installation of this 14 acre green roof was a special challenge since it had to be completed within 10 weeks. This could only be achieved by having 4 state of the art blower trucks on site working constantly to apply the 10,000 cubic yards of growing media on the roof (up to 500 cubic yards a day). With a 150-ton hydraulic crane, all the other components (almost 100 truck loads / 3 per day) were conveyed to the roof area.

To increase biodiversity there are multiple locations on the roof with seasonal open water, wood locks and breeding opportunities for birds.

The project saved the building owner around 2 million Euros for increasing the water treatment plant and sewer system.


North America in contrast:

 

From 2010 to 2015 warehouse new construction in the US tippled from around $5 billion to 15 Billion this equals around 1000 new warehouses every year and translates to a potential of at least 1 Billion of square feet of extensive Green Roofs that could retain the volume of Lake Constance that is surrounded by three countries (Germany, Switzerland and Austria). On top of that and if these Green Roofs are done right and without irrigation, these Green Roofs would allow a controlled succession that could develop over the years to a unique habitat for many endangered species.

As the nationwide building codes require expensive engineered fire suppression systems the same building codes can require simple and highly efficient Green Roofs. Unfortunately most Green Roof or other environmental organizations don’t focus the low cost, high efficient simplicity – they focus on adding carrots or a rare native plant species to an environment that is far away from being connected to the ground.

Common sense exists as term but it isn’t in the head of most people because it doesn’t generate the attention and “individualism”.

Advanced Green Roof Technology

Green Team at Green Roof Technology, - Monday, November 23, 2015

At this time of Thanksgiving celebration our thoughts turn gratefully to you with warm appreciation.

We would like to take this time to express to you our sincere appreciation for your confidence and loyalty.

We are deeply thankful and extend to you our best wishes for a happy and healthy Thanksgiving Day!

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