I visited my brother-in-law recently and he showed us his own green roof which he installed on top of the concrete slab roof of his storage room. I had to climb the ladder to get a closer look. I wondered for a moment if it had those automatic sprinklers, but guess what, it doesn't. It does however has water at one corner from a condensation pipe from his air conditioning. Apparently, this water along with occasional rain is enough to sustain this small garden. Hence, this is a low maintenance green roof and we excitedly discussed how he constructed this. I couldn't wait to share it here on the blog.