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Cosella-Dörken Products, Inc.
4655 Delta Way
Beamsville, ON L0R 1B4
Canada
Phone: 1-905-563-3255
Toll Free: 1-888-4DELTA4
Fax: 1-905-563-5582
Email: info@cosella-dorken.com
© Cosella-Dörken Products
A company of the Dörken Group
DELTA®-BIOTOP - Geotextile for Garden Roof Applications
DELTA®-BIOTOP is a filter fabric designed for use with DELTA®-FLORAXX and DELTA®-ROOT BARRIER in the DELTA® Garden Roof System. DELTA®-BIOTOP helps hold the growing medium in place and prevent it from washing away and clogging the drainage capability of DELTA®-FLORAXX.
DELTA®-BIOTOP is a filter fabric designed for use with DELTA®-FLORAXX and DELTA®-ROOT BARRIER in the DELTA® Garden Roof System. DELTA®-BIOTOP helps prevent the growing medium from washing away and clogging the drainage capability of DELTA®-FLORAXX. In additon, DELTA®-BIOTOP supports the growing medium, enhancing the water-retention capacity of DELTA®-FLORAXX. It is root and rot resistant.
Non-woven polypropylene filter fabric. Specially designed to provide stability to growing media and prevent it being washed away and clogging drainage. This environmentally friendly product is non-toxic and rot-proof in contact with growing media .
DELTA®-BIOTOP is installed over DELTA®-FLORAXX as part of the DELTA® Garden Roof System. Lay it over top prior to placing growing medium or ballast and overlap a minimum of 30 cm (1 foot). It comes in large widths to minimize overlaps and improve application efficiency. DELTA®-BIOTOP will provide a filter layer that will allow the free flow of water without washing away growing medium.
| Product name | DELTA®-BIOTOP | |
|---|---|---|
| Grab tensile strength | 130 lbs (578 N) | ASTM D4632 |
| Elongation |
60 % | ASTM D4632 |
| Trapezoidal tear strength | 60 lbs (270 N) | ASTM D4533 |
| Puncture strength | 41 lbs (180 N) | ASTM D4833 |
| CBR puncture | 225 lbs (990 N) | ASTM D6241 |
| Apparent opening size |
70 US sieve (0.21 mm) | ASTM D4751 |
| Permittivity | 0.7 / sec | ASTM D4491 |
| Water flow rate | 60 gpm/ft² (2,460 l/s/m²) | ASTM D4491 |
| Chemical properties | Resistant to chemicals Root-penetration resistant Does not rot when in contact with soil |
|
| Toxicity |
Non-toxic, non-polluting |
|
| Temperature resistance | -22°F to +140°F (-30°C to +60°C) | |
| Unit weight (typical) |
4.0 oz/yd² (135 g/m²) | ASTM D5261 |
| Roll dimensions |
62" x 300' (1.57m x 91.44 m) | |
| Coverage per roll | 1,550 ft² (144 m²) | |
| Service life expectancy |
> 25 years (at pH between 4 and 9 and temperature below 77°F / 25°C). Do not expose to UV light for longer than 30 days. |
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Garden Roof Brochure
3-part Product Spec