Bold & Gold green roof media developed in Florida.
(2014) University of Florida press release. A new expanded clay media will allow the use of green roofs to extend into southern regions. The media, known as Bold & Gold also is used for septic drain fields and stormwater infiltration. At the core of Bold & Gold is an expanded clay material developed to extract nitrogen and phosphorus pollutants. In a University of Florida press release, Marty Wanielista, Ph.D., P.E., professor emeritus with UCF’s Stormwater Management Academy, said “In addition, over the course of a year, this light weight and durable soil media can reduce the overall amount of the stormwater runoff by approximately 75% when used with a cistern to recycle the water to the roof.”