In rooftop systems, rainwater lands on a home’s roof, flows into its gutters and is redirected and collected in a tank. This is the most common method due to its affordability and ease of setup.

Ga.o House not only brings home and workspace together under one roof, but is also a great example of passive architecture.

Most small-scale, residential rainwater harvesting systems we’ve seen rely on using an existing roof and downspout to ... For a system like this a holding tank is not necessary; [SuburbanBiology ...