I made a video about this soaker hose water system I use to water my rooftop container garden. This watering system would be a good start for green roofs, and for container gardens on a balcony or deck. The hardest part of a rooftop watering system is getting the water up onto the roof. I drilled a hole in the bottom of my kitchen window and have run a heavy duty garden hose up the back wall of our building, where the hose comes over the back wall of the building, I cut the hose in two and connected them with a right angle connector.
Do you use a drip irrigation system? Let us know if its DIY or store bought below and how you use it to water your plants.