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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!

Thank you for following us!

15 Million Square Feet of Green Roofs in 2 days!

Green Team at Green Roof Technology, - Monday, April 06, 2015

Over 15 Million square feet of Green Roofs in 2 days!

In the World’s Green Roof capitol it isn’t a problem to walk over 15 million square feet of Green Roofs in two days.
Grinnell College Students, Architects and Professors joined me this year on a two day trip though out Stuttgart Germany.

Within the city limits and a population of around 700,000, Stuttgart can offer likely over 200 millions square feet of extensive and highly divers Green Roofs – more than the entire USA and probably Canada together.

The two days tour emphasized Green Roofs that are between 15 and 30 years old and that host over 40 different plants species. Remarkable is that not a single Green Roof was ever irrigated, nor fertilized in the last 10-15 years and most of them are maintained only once a year.

No Green Roof was ever replaced or fixed and the water proofing under all Green roofs never, ever leaked (in the US 50% of the green roof are getting fixed or replaced in the first 5 years). The average installation costs were at around $4-6/sf (in the US around $12-18/sf).

All Green Roofs have three major functions: stormwater retention, stormwater retention and stormwater retention.

Green Roofs in Stuttgart are part of a building like windows or doors. There is no necessity to make a big fuss out of it.
Being the World Champion in modern Green Roof technology is nothing to celebrate – it is the responsibility of sustainable and environmental conscious lifestyle combine with common sense.

The highlight of the tour was the Bosch Parking Garage with the world’s largest Solar Green Roof that was designed with extremely high diversity of plants that are found only in (local) native dry meadows.
While the Green Roof measures around ¼ Million square feet the PV is designed for 1 Megawatt.
Unmatched world record in this combination on building structure that is 100 feet above a 6 lane Highway.

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


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