About
The U.S. population is forecast to increase by 50% over the next 50 years, yet cities are already struggling to cope with growth and economic development.
Open spaces and undisturbed land have given way to buildings and roads. Sealed with concrete and asphalt, these surfaces no longer allow water to infiltrate the ground. Dark rooftops and pavement absorb and store energy from the sun during the day and reflect it at night.
The results are increased storm water runoff, increased urban temperatures known as the “urban heat island effect,” altered weather patterns, and the loss of greenery in metropolitan areas. Green roofs can provide a solution to these problems.
Learning Objectives
- Establish different technologies and waterproof membrane products that can be utilized under the growing vegetation.
- Establish methods for storing storm water and detailing how to remove excess water through the drainage layer under growing medium.
- Review root barrier needs based on the growing medium of intensive and extensive systems.
- Establish best practices for waterproofing inside and outside corners, along with the vertical to horizontal transition details.