| 摘要 |
An improved gutter screen, and the combination of such a screen with a roof and gutter upon which it is mounted, in which the screen is of flexible, open-mesh construction, having spaced, flow-directing ribs extending in directions parallel with the slope of the roof and transverse flow-interrupting bars extending between the ribs. Together the flow-directing ribs and the flow-interrupting bars define a multiplicity of small, generally rectangular apertures, with the ribs being of a height substantially greater than that of the bars. The screen includes on its underside an underrib, parallel to the bars and the length of the gutter, to break up the surface tension of water flowing along the underside and direct the water into the gutter.
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