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→Modular system
===Modular system===
===Modular system===
#Sweep and blow the roof membrane clear and free of dirt, debris, and any sharp objects (such as flash clippings)
#Inspect the waterproof membrane for any potential damage prior to installing root barrier
#Install green roof perimeter or vegetation free zones (if applicable) a minimum 2 feet from parapet wall and around other critical infrastructure such as vents or roof drains
#Install the root barrier (if applicable) on top of the roof membrane.
##Ensure sheet is goes up the parapet wall the full height of the green roof system (if applicable).
##Where additional root barrier sheets are laid side by side, a minimum of 30 cm overlap between sheets is needed.
##Make appropriate slits in root barrier with a retractable knife (away from existing waterproof membrane) to allow installation around roof infrastructure such as drains, air vents and stacks
##Please note that modular systems often include a root barrier built into the system but some systems recommend doubling up
#Install the modular system according to manufacturer specifications or green roof design
#If modular system is installed on a slope roof, the system will need to be anchored according to manufacturer specifications or design
#Install irrigation system installation (if applicable) according to manufacturer specifications or design
#Backfill vegetation free zones with clear stone (if applicable)
===Layered system===
===Layered system===