Sheet Drain (Prefabricated Drainage System) with

Sheet Drain products are primarily used vertically or horizontally to provide full coverage drainage. Detail Description: Vertical applications include basement walls and retaining walls. Horizontal applications include plaza decks or roof gardens. Sheet Drain consists of two main components: Dimple Core The dimpled core creates an air space for water to enter and travel to its collection system. It consists of a polymeric core with its own inherent strength to withstand compressive strengths from vertical applications of soil and/or stone backfill or vehicular traffic in horizontal applications. The core height ranges from 0.25 inches to relatively 0.5 inches. Compressive strengths range from 10, 800 lbs/sq ft to 35, 000 lbs/sq ft. In vertical applications, the dimpled core also acts as a protection board. Because the core is impervious, the Sheet Drain can replace the use of protection board against waterproofing. The flow capacity of the core ranges from 9 to 15 gal/min/ft which is equivalent to the flow rate found in 4-8 feet of drainage stone. Geosynthetic Filter Fabric The purpose of the filter fabric is to provide a layer of filter between the unwanted soil particles and the dimpled core. The geosynthetic filter fabric has a high filtration rate allowing water to filter through the fabric and enter the drainage core quickly yet resist clogging. The fabric is glued to each dimple of the polymeric core to keep from soil intrusion. Various fabrics are available to meet special specification needs as well.
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