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Extensive Green Roof

Verified by manufacturer 8 days ago

Nature Roof

Optigreen Ltd Variant:

Extensive green roof systems.

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Application

  • Suitable for roofs from 0–5°.
  • Suitable for inverted roofs.

Description

The Optigrün Economy Roof system is a standard construction for extensive green roofs, it is particularly resistant and can be used on most standard roofs. The Nature Roof is the form of green roof that offers a wide range of substrate heights and species diversity and can therefore also achieve the highest ecological value. Drainage takes place via the solid drainage system (FKD), which is suitable for roofs from 0-5°.


Features and benefits:

Economy Roof:

  • The most cost-efficient green roof solution.
  • Low maintenance green roof design.
  • Mainly sedum vegetation.
  • Suitable for inverted roofs.
  • Meets the requirements of the FLL Green Roof Guidelines.

Nature Roof:

  • Ecologically valuable green roofing.
  • Can be implemented as a biodiversity space.
  • High evaporation capacity.
  • Long-lasting and colourful flowering aspect.
  • Accommodates a wide range of plants and animals.
  • Load calculation for mounds and deeper layers: the weight for 10 mm of additional substrate is approx. 12–15 kg/m².
  • Suitable for inverted roofs.
  • Meets the requirements of the FLL Green Roof Guidelines.

General information

Color

Green

Brown

Black

Finish

Natural

Material

Vegetation

Acrylonitrile butadiene styrene (ABS)

Plastic

Fleece

Shape

Square

Rectangle

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Uniclass

Ss_45_40_47_28 Extensive green roof systemsPrimary

CAWS

Q37/130 Extensive green roof

Specification data - Extensive green roof systems

Protection

-

Protection layer

Protection and storage fleece RMS 300.

Guidance for specification option:

  • Strength class: GRK 2.
  • Thickness: approx. 3.6 mm.
  • Weight: 300 g/m².
  • Water storage: approx. 2 l/m².
  • Roll: 100 m².
  • Roll width: 2.0 m.
  • Sound reduction ∆LW: 35 dB.

Trickle protection mat RSV 120.

Guidance for specification option:

  • For use with inverted roofs.
  • Strength class: GRK 2.
  • Thickness: approx. 0.75 mm.
  • Weight: 120 g/m².
  • Roll 450 m².
  • Roll width: 4.5 m.

Moisture control

-

Drainage layer

Drainage and storage board FKD 40.

Guidance for specification option:

  • Nominal thickness: 40 mm.
  • Weight: approx. 2.3 kg/m².
  • Maximum flow capacity: approx. 2.31 l/m×s (with 2% slope).
  • Compression strength filled: approx. 460 kN/m².

Filter membrane

Filter fleece FIL 105.

Guidance for specification option:

  • Strength class: GRK 2.
  • Thickness: approx. 1.1 mm.
  • Weight: 105 g/m².
  • Roll: 200 m².
  • Roll width: 2.0 m.

Drainage ancillaries

Combi inspection chamber TKS PLUS.

Guidance for specification option:

  • Material: recycled plastic (ABS).
  • Chamber cross section: 370 × 370 mm.
  • Floor support surface: 470 × 470 mm.
  • Height: 110 mm minimum (stackable in 100 mm increments); 800 mm maximum.
  • Chamber bottom opening: Ø300 mm.

Planting systems

-

Planting medium

Extensive substrate E (60–120 mm).

Planting requirements

Pre-cultivated wildflower mat.

Plug plants and/ or wildflower seed mix.

Fire breaks

-

Manufacturer guidance

Consult manufacturer for details and insert requirements or omit.

Edge restraints

-

Manufacturer guidance

Consult manufacturer and insert requirements.

  • Erosion protection plates ESP in pebble boarders.
  • Vegetation mats on green spaces.

Weight

90 kg/m² (0.9 kN/m²).

Manufacturer guidance

Weight specifications refer to saturated conditions; dry weight is approximately 60–70% of the saturated weight.

System depth

From 100 mm.

Manufacturer guidance

Build-up depth.

Roof pitch

0–5°.

Discharge

Cs = 0.3–0.5.

Manufacturer guidance

Discharge coefficient in accordance with the current FLL Green Roof Guidelines.

System accessories

-

Manufacturer guidance

System add-ons available.

Consult manufacturer for details and insert requirements.

Sustainability data

Country of material origin

Europe

Country of product manufacture

Europe

Material

Vegetation

Acrylonitrile butadiene styrene (ABS)

Plastic

Fleece

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

-

Manufacturer guidance

RMS 300

Specific properties

- 100% recycled plastic fibre (PP/PES/acrylic)


FKD 25

- 100% recycled HDPE

Literature

Optigrün Technical Brochure

Optigrün Technical Brochure

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