Drainage Sheet with Geotextile:
is a protection and drainage system for compression-resistant surfaces.
is a two-way dimpled sheet made from special high-density PE with a fused-on PP geotextile. A compact system that may be applied quickly straight from the roll.
is made exclusively of branded polyethylene. Containing no recycled material, it is itself fully recyclable.
resists degradation in soil and is non-polluting for drinking water.
forms a system of ventilation ducts between the foundation wall and the dimples which keeps the wall dry and provides additional heat insulation.
features a drainage capacity that can handle twice the maximum amount of water that is likely to occur under unfavourable soil conditions.
is highly compression-resistant.
2 layers - one complete system:
Layer 1: The two-way dimpled sheet. Featuring dimples on both sides, it offers two advantages: On the one hand, the dimples between the foundation wall and the sheet create a system of ventilation ducts which keeps the foundation wall permanently dry. On the other hand, the dimples that point towards the surrounding soil provide drainage across the entire surface.
Layer 2: The compression-resistant permanent geotextile made of PP. Laminated on to the dimpled sheet, the layer of rot-proof geotextile out fine-grained soil particles, thus protecting the system of ducts formed by the dimples from being clogged up by sludge. This permits water to flow unhindered downwards to the perforated drainage pipe.
Installed either vertically or horizontally.
Held in place by either taping, nailing, gluing or simply overhanging over the wall while backfilling takes place.
Installed with the geotextile facing the backfill.
Joined by simply butting edge to edge and overlapping the geotextile overhang and securing with reinforced canvas tape. Alternatively overlap the cuspate core by 50mm and secure geotextile as previous.
Backfill with free draining fill taking care not to disturb or damage the drainage sheet.
The concept of waterproofing or protecting buildings against the damaging action of water derives from the need to avoid water and humidity related elements that act negatively upon structures. This negative effect can present itself in several ways, creating health problems, structure deterioration and facility damage. Not to mention, that repairing a building damaged by water can be very expensive!
Typical Geosheet Applications:
Basement flooding is a major problem for many property owners this occurs when water collects and builds up behind the walls and below floors causing hydrostatic pressure, water is then forced through joints and cracks in the structure. The incorporation of Geosheet will prevent the build-up of hydrostatic pressure by draining away excess water.
Over a number of years, the Geosheet geosynthetic drainage systems have established themselves as reliable alternatives to traditional granular drainage systems behind retaining walls.
The compact Geosheet drainage material represents a real cost saving to contractors and clients in terms of low transportation and installation costs.
Large thin sheets
High flow rate
Light weight & Flexible
High void ratio
Cost effective transport and installation
Reduces hydrostatic pressure behind walls
Easy to handle, quick to install
Provides airlock between drainage layer and wall (double cuspated only)