When Green Roofs Go Wrong
Common Causes of Green Roof Concerns and Failure
Green roofs provide a myriad of benefits to a building, and community, ranging from stormwater management opportunities; to ecosystem services such and habitat creation and biodiversity enhancement; to on-site enhancements such as insulation and cooling enhancement. However, not all green roofs are created equally, and sometimes, due to a number of factors, a green roof can fail so completely that it needs to be replaced.
This course provides an overview of some of the ways green roofs fail, what to do when failures occur, and how to avoid these mistakes to ensure long term success and the maximization of benefits derived from a green roof.
- How can design influence a green roof's success?
- What design elements are critical to a green roof's success?
- What are some common causes of green roof failure?
- How can green roof failures be avoided?
- Overview of key best practices in design and installation
- Common causes of concerns and how to avoid them
- Case Studies
Elizabeth Hart Morris, CDT, GRP is the Director of Vegetated Roofing Assemblies at Henry Company. For more than 10 years Elizabeth has been changing the “nature” of commercial roofing through green roof design, project management, and recycling of tear-off waste. Elizabeth has overseen dozens of new green roofing projects, and specializes in restoration of green roofs with “issues.” She has trained thousands of designers and contractors on all aspects of on-structure vegetation. Elizabeth is a founding member and President of the Green Roof info Think-tank (GRiT), a nonprofit dedicated to creating urban resiliency in the Pacific Northwest through the use of on-structure vegetation. She is also the GRP Chair on the Board of Directors for Green Roofs for Healthy Cities.