Rain flow gutters are the best in design innovations for channeling out Rain water. Rain gutter are installed in buildings to direct the rain water to specific place. Gutters prevent water from seeping in internals of buildings and thus keeping it protected. In many countries it used in the plan of saving water for instant and portable use. It is helpful in preventing leaks and erosion in the building materials. Variety of materials is used in the construction of Rain flow gutter systems. Cast iron, Aluminum, Copper and PVC are mostly used for durability. First the water is collected and then it is transferred to a downspout from where it is discharged to the desired outlet. Downspout is the conductor which connects the edge of the roof to the basement facilitating the downward movement of water.