Hey this is the coolest jugaad I found this week.
Now we can use our waste roof for force for cleaner air, cleaner water, energy savings, cooling, beauty and recreation. and also prevent from rain off. which is due to waste raining bouncing water by our cemented roof.
It also prevent from greater heat soared in the crowded city by 10% from less crowded area,by reflecting the sunlight.
SO It is like earning cost of seed with fruit of itself.........