DELTA®-BIOTOP - Geotextile for Garden Roof Applications
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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.
Propierties
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.
Material

Non-woven polypropylene filter fabric. Specially designed to provide stability to growing media and prvent it being washed away and clogging drainage. This environmentally friendly product is non-toxic and rot-proof in contact with growing media.
Application

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.
Technical Data
| DELTA®-BIOTOP |
| 130 lbs (578 N) |
| 60 % |
| 60 lbs (270 N) |
| 41 lbs (180 N) |
| 225 lbs (990 N) |
| 70 US sieve (0.21 mm) |
| 0.7 / sec |
| 60 gpm/ft² (2,460 l/s/m²) |
Resistant to chemicals Root-penetration resistant Does not rot when in contact with soil |
| Non-toxic, non-polluting |
| -22°F to +140°F (-30°C to +60°C) |
| 4.0 oz/yd² (135 g/m²) |
| 62" x 300' (1.57m x 91.44 m) |
| 1,550 ft² (144 m²) |
| > 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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