Yeah, that's a good point about ventilation, but honestly, I've seen more issues from people not sealing enough rather than sealing too much. I manage...

Couldn't agree more on this point. I've seen homeowners get burned because they assumed "lifetime warranty" meant exactly that, only to find out later...

I've never personally overseen a green roof install, but a colleague of mine managed one on a commercial building downtown. From what I heard, the ins...