Description :

Delta Terraxx has been optimised for various applications in horizontal drainage. Laid on top of the waterproofing, this 2-ply water drainage sheet constitutes an all-round solution conforming to DIN 18531 and DIN 4095. It serves to protect e.g. paved underground parking decks, terraces, and planted roofs from impounded water and is installed under the wearing course of parking decks.

The composite of a dimpled sheet and a fused-on geotextile forms a highly effective drainage layer. Facing up, the geotextile acts as a filtration layer for the hollow spaces contained in the dimpled sheet underneath. Between DELTA®-TERRAXX and the waterproofing sheet, a conventional 300-g spunbond should be inserted.

No higher than 9mm, the dimpled sheet ensures a low add-on height, although its drainage capacity is markedly greater than that of a gravel or chip bed. Its high water drainage capacity ensures that water drains away unhindered, besides providing safe and effective protection from impounded water and the problems related to it, such as obstruction by growing moss or dying vegetation.

In terms of weight, too, DELTA®-TERRAXX is clearly superior to drainage layers of gravel or chips. The protection and drainage sheet is equally suitable for extensive and intensive planting. DELTA®-TERRAXX is also capable of dealing with extreme volumes of water. Thanks to their self-sealing overlap edges, the sheets may be interconnected safely so they cannot be blown up by wind.