Word-of-the-Month: Green Roof

April 2017
A green roof is contained space on top of a building used to grow plants. Vegetation is planted above grade and incorporated into building designs for its aesthetics, sustainability impact, and community health benefits.Green roofs are often modular in design with interlocking grid systems. Grid systems allow for easy installation of individual components, including a waterproof membrane, root barrier, drainage layer, filter cloth, growing medium, plants, and irrigation system. Green roof designs and performance will vary greatly by region, climate, materials, and size.



The focus on sustainable construction in the United States has grown steadily over the last decade due to consumer demand. Building owners are beginning to recognize that operational efficiency reduces long-term costs, while increasing their property’s intrinsic value and marketability by ‘going green.’

Green roofs positively impact cities and the environment because they:

  • Reduce pollution
  • Reduce global warming
  • Reduce ‘Urban Heat Island Effect’
  • Reduce energy consumption
  • Increase economy and job market
  • Increase habitats and biodiversity
  • Increase produce production and nutritional health
  • Increase natural aesthetics and emotional health
         common and effective green roof design                                  green roof in the heart of a city
Rendering by MSR Design: Stahl is partnering with PLACE, a nonprofit organization that creates living and working opportunities within sustainable, mixed-use, transit-oriented communities, on a project in St. Louis Park, MN. The development will provide access to nature in an urban environment and include 29,500-square-feet of green rooftop decking.
Left: A green roof is one of the sustainable attributes Stahl created for White Bear Lake Public Works’ ‘green’ project. Right: Colorful moss beautifully represents the organic evolution of Stahl and the journey we guide clients on throughout their project. The living art also creates a ‘green wall’ at our new office in the historic Miller Textile building located in NE Minneapolis.