摘要 |
A water impervious panel assembly for a foundation wall. A series of rigid, extruded thermoplastic panels are mounted in side-by-side relation to the outer surface of the foundation wall. Each panel has inner and outer faces connected together by a series of parallel spaced ribs which define vertical flow channels that extend the height of the panel. A plurality of holes are formed in the outer face of each panel and communicate with the channels. The holes and channels facilitate movement of water to the drain tile at the footing of the wall and relieve hydrostatic pressure on the wall. To provide a watertight vertical joint between adjacent panels, the inner face of each panel adjacent one vertical side edge is provided with a first vertical slot that communicates with the flow channel located adjacent that side edge and the outer face of each panel adjacent the opposite side edge is provided with a second vertical slot that communicates with a flow channel adjacent that side edge. A first vertical rib located outwardly of the first slot of one panel is received within a second slot adjacent the second side edge of an adjacent panel to provide an interlocking watertight joint between the panels.
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