Patent ID: 7748171

Claim:
A shield installed for separating debris from water that is flowing downward and outward on a pitched roof, the roof having a pitch angle that is acute relative to horizontal, and the shield being installed by attachment to the roof; the installed shield comprising: a substantially planar perforated portion is at an acute angle that is approximately aligned with the roof pitch angle such that the substantially planar perforated portion has a top surface facing generally upward and a bottom surface facing generally downward; perforations comprising a plurality of intermittent, longitudinally extending slot openings through the top surface, wherein the longitudinal direction is defined as being substantially horizontal and orthogonal to the pitch angle of the roof; a tab that ramps from the top surface downward and outward through the slot opening; and a longitudinal breakwall comprising a wall extending downward from the tab at an angle approximately ninety degrees relative to an underside of the tab.