native/adapted mix

Can you describe a little bit more what you have in mind?Based on what you've said so far, my response would be that the area has to be native or adapted vegetation. If a certain area is to count toward that requirement, it wouldn't make sense for it to be half turf grass, etc.

I have a similar instance where we are using native tree species planted in turfgrass area. Can you count the 5 year canopy SF of trees towards this credit being native/adapted and creating habitat?

Hi Peter, Whenever I do my calcs for this credit I calculate the area of the 5-year canopy, regardless of what it is planted in / surrounded by. This has never caused an issue for me or my team. Hope this helps.

There are a couple of LEED Interpretations that are applicable here. One says that only intensive roof systems (growing medium of 6 inches or more) may be counted, which given your comment saying that the roof profile is 4 inches, may be an issue. The adaptive plants may be counted, but only if they provide habitat value and don't essentially result in a monoculture of similar species. The project team might consider pursuing SSc5.2 if the project is in an urban area, in which case the extensive roof approach may be used. See the interpretations for more info: #10231 #1898