Abstract: A self-cleaning invertible gutter system is provided in which a gutter having a projecting downspout connector positioned on the end thereof is mounted on the facia board of a building for roll-over invertible movement thereon. The gutter extends beyond the end of the building with a cooperating downspout being positioned near the corner on the adjacent wall of the building such that the downspout connector is adapted to be swung into and out of the cooperating downspout. A single, continuous support line is attached near the ends of the gutter or near the ends of the facia board and is laced alternately through fixed supports spaced along the facia board above the rear of the gutter and through supports mounted on the lower surface of the gutter and positioned toward the front of the gutter such that this support line passes back and forth around the lower rear corner of the gutter.