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. DELTA®-BIOTOP - Geotextile for Garden Roof Applications

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

DELTA®-BIOTOP - Geotextile for Garden Roof Applications 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 - Geotextile for Garden Roof Applications 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

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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