GEOCOMPOSITE DRAINAGE LAYER

Applications

A strong, robust geocomposite layer designed to relieve external water pressure from buried structures.
Drainage behind retaining walls, potable water reservoir roofs and walls, tunnels.
Roof gardens and block paving drainage.
Relief of uplift pressure beneath tanks, slabs and culverts.
Capillary break layer below base slabs.
It can be applied horizontally on roofs and below base slabs or vertically against walls.

Finesse Deckdrain is a high performance geocomposite drainage layer that replaces stone filter layers with distinct benefits. Deckdrain structural drainage systems have been specifically developed to provide high flow capacity and added protection to waterproofing.

Deckdrain consists of a high strength flexible polyethylene cuspated core with a non-woven geotextile bonded onto either one or both sides.

The polypropylene geotextile will filter a wide range of materials and is bonded to the core to ensure that it does not deform into the drainage passages under the action of back fill material. The geotextile allows water to percolate into the core whilst supporting the backfill material. The collected water is transported along the core to a discharge point.

The single cuspated HDPE core acts as a high performance drainage medium, with the spacing between the dimples designed to ensure an excellent support for the geotextile filter. Optimum compressive strength and resistance to creep ensure that the core will maintain its drainage capacity under a wide variety of compressive loadings. The unique core design has clear passageways to allow flow in all directions.

Deckdrain is durable and sufficiently robust to resist the mechanical stresses imposed during installation and throughout the design life. Use of Deckdrain will eliminate the need for further protection of the waterproofing membrane.