Gutter guards offer a number of benefits. They are primarily designed to keep leaves, twigs and other debris out of your gutter system, thus preventing buildup that could later on lead to clogging. It’s a pretty straightforward job, but the specific function of a gutter cover may vary depending on its features. For example, gutter covers made with screens are best used to filter debris from rainwater, while solid covers are ideal for deflecting debris while collecting rainwater.