Water naturally adheres to a surface. If you've ever poured water from a pitcher or glass and ended up with a puddle on the table then you've seen surface adhesion in action. All solid cover gutter covers utilize this same principle but only one, the NUMBER ONE gutter protector™ uses it in the smartest way.
Rainwater flows across the solid top, around the nose and is
pulled back into the gutter by the louvers.

Because of the small size of the louvered openings, the leaves twigs
and pine needles get filtered out.
