Nearly every house is geared up with gutter. These rain troughs or eave troughs, normally made from metal, hang below the eaves of your roof to capture rain (or melting snow) as it runs down your roof. The rain seamless gutters gather the water, then direct the water to downspouts, and finally direct the water on to splash pads that sit on top of the ground. This system avoids water from diminishing the fascia board, from possibly wetting the outside walls of you house, from gathering on the ground near the foundation (possibly leaking into the basement where it can do further mischief), and dropping onto the ground, potentially beginning an erosion ditch in your backyard.