Evaluation of the Drainage Capacity of a Geocomposite Applied to the Green Roof of the Office of the Attorney General’s Office in Brasilia, After 14 Years of Its Application

The purpose of this research was to verify such actions of the time in a geocomposite and to verify the general functioning of the system, thus allowing an in depth knowledge about the effectiveness of the use of this technological solution applied in drainage works. The research was carried out using a geocomposite from the suspended garden of 22,000 m² (green roof) of the building of the attorney general’s office, located in Brasilia, after 14 years of its application. After the analysis, good stability of the drainage system was verified, through the evaluation of physical and biological clogging.