Green Roof of the Year 2014 – 30 Years and Counting
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! 
