# After every large storm event (e.g., 15 mm rainfall depth or greater) to ensure roof drainage or flow diversion devices are functioning and adequately maintained. You can also download and print the table [https://wikidev.sustainabletechnologies.ca/images/6/6b/LID-IM-Guide-7.6-Green-Roofs.pdf '''here''']<br> | # After every large storm event (e.g., 15 mm rainfall depth or greater) to ensure roof drainage or flow diversion devices are functioning and adequately maintained. You can also download and print the table [https://wikidev.sustainabletechnologies.ca/images/6/6b/LID-IM-Guide-7.6-Green-Roofs.pdf '''here''']<br> |