| 摘要 |
A sill flashing including a ribbed portion and a top cover; the ribbed portion consists of an upstanding flange connected to one side of a rear portion, the plane of the rear portion being perpendicular to the plane of the flange, a vertical connecting portion connected at its upper end to the opposite side of the rear portion from the flange and at its lower end to a front portion and the plane of the front portion being at an angle to the vertical. The ribbed portion being formed with a series of spaced ribs on its upper surface and being arranged to extend below a window frame from the wall cavity through to the exterior of the walls, across the full width of the frame; said ribbed portion being dimensioned to partially cover the upper edge of a wall cladding beneath the frame; the top cover being arranged parallel to but spaced from the ribbed portion and extending over the part of the ribbed portion underlying the window frame and extending from the exterior of the wall.
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