Roofs that hold water: reduce heating and cooling costs, increase life of roof, and create a rooftop garden! Would be great on a shipping container home, as there might be a risk of collapsed roof otherwise if drainage isn't sufficient.
Intensive green roofs have thicker soil and can grow deeper rooted plants. Extensive green roofs - thinner layer of soil and shallow roots for sedum and grass;
Basecamp + Green by Backcountry Tiny Homes - Tiny Houses On Wheels For Sale
Basecamp + Green is a fascinating tiny house designed by Backcountry Tiny Homes. The 24′ tiny house offers 204-square-feet on the main floor and a total of 383-square-feet including the roof deck and lofts.