New technology and design enhancements!
Older design flaws could be the contributing factor to this common misconception. New technology and design enhancements give the results you’re looking to achieve.
First, aluminum alloy coated with a special treatment helps water and large debris slip off and not stick to the gutter hood. While the nose-out design forces leaves, twigs, pine needles, and other smaller debris out beyond the lip of the gutter to ensure it doesn’t slip into the slot between the channel and the gutter cover hood. The nose out design leverages the smallest debris to fall outside the gutter trough.
Additionally, engineers conceptualized a “tri-sectioned” point to allow three different places where debris falls off. Simultaneously, the reverse curve uses the physics of surface tension to channel water into the gutter. This unique “tri-sectioned” nose also features a larger radius and diameter than competitor gutter protection systems.
Finally, the solid hood keeps out more than a leaf filter or screen. The hood forces leaves, twigs, pine needles, and other debris to slide off the roof. It also prevents small rodents from nesting in the gutter. When gutters are free of leaves and other objects, the smallest debris such as shingle grit washes away as originally intended. This way, your gutter system stays free and clear of clogs.
Conversely, the traditional leaf guard gutter screen allowed small particles through. This rubble still creates a clogged gutter. Plus, a screen supports debris laying on top of the screen, blocking the gutter guard and requiring continued cleaning of the leaf guard.