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VersiCell
VersiCell is an efficient lightweight, high
strength, interlocking drainage module that captures and transports high water volumes
and protects the waterproofing membrane.
VersiCell is Ideally suited for use in intensive green roof systems where load weight bearing capacity and efficient drainage is important. |
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| Specifications |
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| Material |
Polypropylene |
| Colour |
Black |
| Weight |
approx 2.7 kg/m² |
| Size |
500 mm (L) x 500 mm (W) x 30 mm (H)
500 mm (L) x 250 mm (W) x 30 mm (H)
500 mm (L) x 500 mm (W) x 20 mm (H) |
| Compressive Strength |
>1,000 kN/m² (100 t/m²) |
| Discharge Capacity |
16.5 l/m.s @1% gradient |
| Surface Void Area |
>67% |
| Internal Void Area |
>95% |
Biological / Chemical
Resistance |
Unaffected by moulds and algae and good resistance to oils, acids, alkalis and bitumen |
| Service Temperature |
-20ºC to 120ºC |
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VersiDrain 25P
VersiDrain 25P is a lightweight, cost-effective water management tray used below the growing media that functions to store and drain water and to protect the waterproofing membrane. The high water storage capacity of the cells coupled with efficient discharge
capacity ensures effective capillary irrigation,
eliminates the possibility of water-logging, reduces irrigation frequency and minimizes fertilizer runoff and usage. |
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| Specifications |
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| Material |
Polyethylene |
| Colour |
Black |
| Weight |
0.9 kg/m² |
| Sheet thickness |
1.0 mm |
| Overall height |
23 mm |
Compressive strength
Water storage
Drainage rate
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50 kN/m² (5 t/m²)
6.1l/ m²
0.8l/m.s
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| Biological/chemical resistance |
Resistant to ground chemicals, rot, moulds, algae, bacteria and root penetration.
Does not affect potable water |
| Service temperature |
-20°C to 80°C |
| Fire resistance |
B2 (DIN 4102) |
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Geotextile
A needle-punch geotextile filter fabric placed
onto either VersiCell ( intensive green roofs)
or VersiDrain 25P ( extensive green roofs)
prevents fine particles in the growing media
from entering and causing clogging. A >25
mm layer of coarse washed sand is positioned
on the geotextile in intensive green roof
systems before the addition of lightweight
growing media. The geotextile also acts as a
‘capillary wick’ when positioned onto VersiDrain
25P in extensive green roofs. |
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| Specifications |
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| Minimum weight |
> 120 g/m² |
| Pore size |
< 190 microns |
Tensile strength
@ 40% elogation |
> 4 kN |
Grab strength
@ 60% elogation |
> 440 N |
| Puncture resistance |
> 800 N |
Trapezoidal tear strength
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> 270 N
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| Flow rate |
> 50 l/ms |
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VersiWeb
VersiWeb is an expandable, high strength
and flexible cellular confinement cell. The
dimensionally stable and inert honeycomb
structure both contains and prevents,
growing media movement, on sloped roofs. |
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| Specifications |
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Standard Cell |
Large Cell |
| Cell Dimension: |
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203 mm x 244 mm |
406 mm x 488 mm |
| Cell Heights: |
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50 mm
75 mm
100 mm
150 mm
200 mm |
50 mm
75 mm
100 mm
150 mm
200 mm |
| Thickness: |
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1.2 mm |
1.2 mm |
| Tensile Strength: |
(Long.) |
18.4 MPa |
18.4 MPa |
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(Trans.) |
19.5 MPa |
19.5 MPa |
| Seam Weld Strength: |
50 mm
75 mm
100 mm
150 mm
200 mm |
560 N
950 N
1400 N
1820 N
2210 N |
560 N
950 N
1400 N
1820 N
2210 N |
| Size Per Panel: |
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approx. 15.0 m²
(2.44 m x 6.1 m) |
approx. 30.0 m²
(2.44 m x 12.2 m) |
| Weight Per Panel: |
50 mm
75 mm
100 mm
150 mm
200 mm |
12.3 kg
18.5 kg
24.7 kg
37.0 kg
49.3 kg |
12.3 kg
18.5 kg
24.7 kg
37.0 kg
49.3 kg |
Long Term Seam
Hang Strength*: |
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> 30 days |
> 30 days |
Environmental Stress
Crack Resistance: |
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> 2,000 hours |
> 2,000 hours |
| Material |
Polyethylene |
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| Colour |
Black |
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| Biological/chemical resistance |
Unaffected by molds, algae and good resistance to oils, acids, alkalis and bitumen.
Does not affect potable water |
| Service temperature |
-20°C to 120°C |
| * 100 mm seam width supporting 72.5 kgf load at ambient temperature according to ASTM E41 |
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Growing Media
Lightweight Growing Media, as recommended
by the specifier, should incorporate expanded clay aggregate or vermiculite and other lightweight, high water storage capacity components such as peat moss, composted sawdust and bark fines, coco peat, washed
sand and recommended fertilizers and water retaining crystals. |
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Suggested Performance Specification
Generally the soil should meet all the requirements of AS 4419
Landscape Soils. It is recommended to test for other nutrients
and trace elements and the opinion of a qualified soil agronomist
sought as to suitability of the levels.
Specification: Super Light Weight
This soil system is designed to be lightweight and to provide rapid
drainage and good water holding capacity. The design fully
saturated density of 800kg/m 3. Design depth is <200mm for
for Xerophytic landscapes. Unavoidably the low density requirement
necessitates the use of higher organic matter contents and some
shrinkage may occur over time.
Suggested Components
Horticultural (coarse) ashes = 30-40%
Perlite 5mm = 20-30%
Composted pine bark/peat/coconut coir = 30%
Medium Sand = 10%
Other acceptable materials include composted sawdust, vermiculite and zeolite
Suggested Performance Specification
Generally the mix must meet all the requirements of
AS 3743 – Potting Mixes for Premium Potting Mix
and the density and organic matter requirements of
AS 4419-Landscape Soils. |
| Specifications |
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| Air Filled Porosity (AS 3743) |
15-20% v/v |
Water Holding Capacity (AS3743) |
40-60% v/v |
Organic Matter Content (AS 4419) |
10-20% w/w |
Permeability fully compacted (AS 4419) |
400-600 |
| Fully Saturated Density |
<900 kg/m 3 |
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Plant Species
Plant species, as recommended by the specifier, should include plant varieties selected for greening quality, adaptability to growing media, irrigation regimes and local environmental conditions. |
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Amenity Turf
Warm Climate: (Coastal and Northern inland NSW, Qld, NT, WA, SA, northern
VIC). A low water use stoloniferous perennial grass such as Couch (Cynodon
dactylon) would likely to be most suitable. Washed turf is the best option for
establishment as it is important not to import soil into the installation.
Cool Climate: (Southern Vic, Tas, Highlands of NSW). A Perennial Rye (Lolium
perenne) and Tall Fescue (Festuca arundinacea) mix is commonly used to provide
generally year around greening in cold climate areas. These species can brown off
during with hot dry conditions but recover rapidly with the onset of cooler weather.
May need occasional over sowing and will need regular fertilizing to maintain good
cover and wear resistance. |
Mesophytic Grassland/Meadow & Mass Plantings
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Native Grasses
Wallaby grasses (Danthonia spp)
Kangaroo grasses (Themeda australis)
Love grasses (Eragrostis spp)
Wire grasses (Aristida spp)
Spear grasses (Stipa spp)
Forbs and Groundcovers
Swan River Daisy (Rhodanthe or Brachycombe spp)
Paper daisy (Helichrysum spp)
Rock Daisy (Brachycombe multifida)
Velt Daisy (Osteospermum spp and Arctotis spp)
Chrysanthemum spp
Silver leaf Daisy (Olearia spp)
Anthemis spp
Flannel Flower (Heliathus actinothus)
Aster spp
Marguerite daisies (Felicia spp)
Gazania (Gazania spp)
Pig face (Carpobrotus spp)
Kangaroo Paw (Anigozanthus spp)
Shrubs and Groundcover
Acacia pravissima “Golden Carpet”
Damperia spp
Darwinia spp
Dianella spp
Prostrate Grevillea spp eg “Royal Mantle, Gaudichaudi”.
Hibbertia spp
Kunzea spp (low growing forms)
Lechenaultia spp
Lomandra spp
Scaevola spp
Xerophytic
Many of the native grass and daisy species suggested will also be suitable for
Xerophytic conditions.
Mediterranean Species
Rosemary (Rosmarinus officinalis)
Thyme (Thymus spp)
Salvias (eg Salvia officinalis – Sage)
Jerusalem sage (Phlomis fruticosa)
Cacti and Succulents
Aloe spp
Adenium spp
Crassula spp
Drosanthemum striatum
Lampranthus spp
Euphorbia spp
Echeveria spp
Pig face (Carpobrotus spp) |
