An impervious elongated plate is fastened to a building, near the edge of therooftop. The plate forms a rebound surface with an uninterrupted slopeextending downwardly away from the building. Rainwater falling over the edgeof the rooftop, strikes the surface, rebounds, and is dispersed along anextended area at ground level, away from the building. The plate may beflexible and resilient, with a memory so that the plate deflects downwardlyunder load, but returns to its initial position after the load is removed. Theplate may be formed as a single work piece. The plate may be extruded from aplastic material. A method includes the step of securing an impervious surfaceat an uninterrupted slope near the edge of a rooftop so that rainwater fallingover the edge strikes the surface. A major portion of the rainwater isdirected downwardly and outwardly along the slope. The major portion of therainwater is scattered as a spray of water droplets falling onto the groundbelow.
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