Commercial green roof systems are a great option for a sustainable system that is low maintenance, yet delivers high performance. Also known as Vegetated Roofs, Green Roofs serve several purposes for a building, including absorbing rainwater, providing insulation, creating a habitat for wildlife, and helping to lower rooftop air temperatures and combat the urban heat island effect. The flat roof is covered with vegetation and a growing medium planted over a waterproofing roof membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems.
Estimates suggest that a green roof extends lifetime by 100 to 200 percent, by protecting the rooftop from ultraviolet radiation, large temperature fluctuations, drying winds and punctures. The roof lasts longer and helps reduce membrane maintenance.
A green roof creates an insulating layer, helping reduce building heating and cooling costs, protects the roofing material from UV and heat stress degradation, enhances air quality resulting from the conversion of carbon dioxide to oxygen and decreased ambient air temperature - which in turn reduces heat-island effect. It also increases aesthetics and creates wildlife habitat.
2009 Aerial Photo of Kent ISD
2012 photos taken at lower rooftop level of Christian Reformed Church of North America
Learn more about this Bio-Diverse Green Roofing project.
Weather Shield green roof installations:
- East Hills Center (Center of the Universe), installed in 2005, Intensive Green Roof
- Kent ISD, installed in 2008, Xero Flor system
- Cesar E. Chavez Elementary School, installed in 2009, LiveRoof
- Christian Reformed Church of North America, installed 2011, Bio-Diverse Green Roof