LeavesOut prevents ice or snow from accumulating in the gutter. Once the ice or snow begins to melt, the water flows freely through the gutter and down the downspout. Occasionally, ice may bridge the gap between LeavesOut and the lip of the gutter and icicles may form. The gutter stays clear. Once the ice begins to melt the icicles fall off and water flows freely into the gutter.

Dirt, roofing granules and other small debris may be carried into the gutter by flowing water, but this does not present a problem. The larger debris, such as twigs and leaves, cannot enter. Thus, the flow of water washes away any small debris and downspouts do not get plugged.