To enhance the dampness protection qualities from its Delta-Geo- Drain drainage sheet, Delta Membrane Systems offers Delta-Geo-Drain Quattro. Previously, the sheet was made up of a slip film, a dimpled sheet with integrated self-sealing edge, and a permanent-filtration geotextile. With Quattro, the slip film features micro-perforation to allow any moisture between the film itself and the waterproofed substrate to permeate through. This slip film now also has a fleece, or laminated cloth, between the film and dimpled sheets which soaks up moisture, then act as a wick to drain the moisture away.
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