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DrainoTech G20 - Drainage and water retention for green roofs - Matgeco
Drainage and water retention geocomposite for intensive and extensive green roofing in PE-HD .
Assembled with a non-woven geotextile intended for green roofs , garden roofs and raised gardens .
Quantity and price expressed in m². Please indicate the quantity in m².
Volume discounts
Quantity | You Save | Unit price |
---|---|---|
50 | 2 % | €11.97 |
100 | 5 % | €11.61 |
200 | 8 % | €11.24 |
300 | 12 % | €10.75 |
DrainoTech G20 - Drainage and water retention for green roofs - Matgeco
DrainoTech G20 is a PE-HD alveolar drainage sheet. It is assembled with a non-woven geotextile intended for green roofs, garden roofs and raised gardens .
The structure made up of 20 mm knobs ensures water retention (6 l/m²) on the upper face and very high draining power on the lower face.
Excess water is evacuated through the perforations in the polyethylene membrane .
Horizontal drainage of extensive and intensive green roofs:
Filtering:
The DrainoTech G20 is covered with a non-woven geotextile which prevents particles of the substrate or mud from clogging the drainage perforations and filters the water. The 10 cm overlap strip allows it to overflow onto the adjacent membrane.
Retention :
The membrane constitutes a water reservoir for the substrate it supports. Each noppe gradually fills up during the rains and releases the water by capillarity and evaporation during dry periods. With 400 micro-reservoirs per square meter, DrainoTech G20 can store up to 6 l/m².
Drainage:
Once the nopps have been filled, the excess is evacuated through the perforations distributed over the membrane. The water will quickly be evacuated under the drainage sheet.
Benefits :
- High draining power.
- Rot-proof.
- Low weight.
- Great simplicity of implementation.
- Cover band.
- Maintains the level of humidity under the ground.
- Regulates water drainage.
Features :
- Roll format: 12.5 mx 2 m.
- Thickness: ±20mm.
- Weight/m²: ± 1100 g/m².
- Structure material: PE-HD membrane.
- Non-woven geotextile: PP fibers (± 136 g/m²).
- Non-woven covering: ± 10 cm.
- Water retention: ± 6 l/m².
- Compressive strength: ± 24 t/m².
- Nope depth: 20 mm.
- Number of knobs: 400 / m².
- Volume of drainage space: 14 l / m².
- Geotextile thickness: ± 0.9 mm.
- Geotextile permeability: 70 l m²/s.
Data sheet
- Signal word
- As of Q1 2023, no signal word is listed for this item when last checked. Please check the latest update of the technical data sheet issued by the manufacturer.
- Hazard statements
- As of Q1 2023, no hazard statements are listed for this item when last checked. Please check the latest update of the technical data sheet issued by the manufacturer.
- Hazard pictogram
Specific References