• installation of an AQUASET system: a module of honeycomb sheets made from 100% recy-cled polypropylene, ranging from 100 to 180 mm in height. It can be used to create a tem-porary water reservoir for waterproofed flat roofs. roof terraces. Volume of water storage: 113,6 to 170,4 litters per sqm. • installation of LIMITO: adjustable flow control device for installation above storm drains on flat roofs. Ideal for rainwater management on roofs. Regulates rainwater run-off. The plants installed are local. The substrate is covered with a mulch (wood chips and miscanthus) to retain moisture and prevent the substrate from drying out. The substrates used are designed by ECOVEGETAL's technical department to respond to the requirements of the project: rainwater retention, light weight, fertile for plants, etc.