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Retention Roof - Extensive

Name: Retention Roof - Extensive
Brand: Optigreen Ltd
SKU: rZ9fTUrt2B1L8TH7ohKezy

Verified by manufacturer 2 months ago

Meander FKM 30

Optigreen Ltd

Retention roofs for intelligent rainwater management.

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+44 (0)203 5899400 Website

Application

Retention Roof Meander FKM 30:

Greatly reduced drainage peaks.
For extensive green roof structures.

Retention Roof Meander FKM 60:

Greatly reduced drainage peaks.
Long-term water storage (meander 60).
For extensive and semi-intensive green roof structures.

Retention Roof Flow Control Extensive:

Very low outflow rate, thanks to a specifically adjusted flow control unit.
High retention volume in the WRB 80F approx. 75 l/m².
Lightweight thanks to hollow-body drainage unit (Water Retention Box WRB).
High evaporation capacity thanks to integrated capillary system.
Basic prerequisite: 0° roof.
Suitable for inverted roofs.

Description

With the retention roof systems, green roofs and intelligent rainwater management work together effectively and sustainably. For a better microclimate and in line with the concept of the sponge city. Optigrün offer effective solutions for delaying runoff and complying with discharge restrictions or throttled runoff from the green roof.

Features and benefits:

Retention Roof Meander FKM 30:

Greatly reduced drainage peaks.
For extensive green roof structures.

Retention Roof Meander FKM 60:

Greatly reduced drainage peaks.
Long-term water storage (meander 60).
For extensive and semi-intensive green roof structures.

Retention Roof Flow Control Extensive:

Very low outflow rate, thanks to a specifically adjusted flow control unit.
High retention volume in the WRB 80F approx. 75 l/m².
Lightweight thanks to hollow-body drainage unit (Water Retention Box WRB).
High evaporation capacity thanks to integrated capillary system.
Basic prerequisite: 0° roof.
Suitable for inverted roofs.

General information

Color	Green Brown
Finish	Natural
Material	Vegetation Acrylonitrile butadiene styrene (ABS) Plastic
Shape	Square Rectangle Other
Length	Bespoke
Width	Bespoke
Height	Bespoke

Uniclass	Ss_45_40_47_28 Extensive green roof systemsPrimary Ss_45_40_47_75 Semi-intensive green roof systems
CAWS	Q37/120 Simple intensive green roof 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.
Moisture control	-
Drainage layer	Meander and water retention board FKM 30. Guidance for specification option: Nominal thickness: 40 mm. Weight: approx. 1.7 kg/m². Retention volume: 0 l/m² continuously; approx. 19 l/m² temporarily. Maximum flow capacity: approx. 0.23 l/m×s (with 2% slope). Compression strength: approx. 115 kN/m² as per EN ISO 25619-2.
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 mm).
Planting requirements	Pre-cultivated sedum mat with decomposable carrier. Plug planting. Wildflower-based vegetation mats.
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).
System depth	From 90 mm. Manufacturer guidance Build-up depth.
Roof pitch	0–5°.
Discharge	Cs = 0.01. Manufacturer guidance Discharge coefficient.
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
Recycled content As defined in clause 7.8 of BS EN ISO 14021	- Manufacturer guidance RMS 300 - 100% recycled plastic fibre (PP/PES/acrylic) FKM 30 - 100% recycled HDPE

Literature

Optigrün Technical Brochure

Optigrün Retention Roof - Flow Control

Retention Roof - Extensive

Application

Description

General information

Color

Finish

Material

Shape

Length

Width

Height

Uniclass

CAWS

Specification data - Extensive green roof systems

Protection

Protection layer

Protection and storage fleece RMS 300.

Moisture control

Drainage layer

Meander and water retention board FKM 30.

Filter membrane

Filter fleece FIL 105.

Drainage ancillaries

Combi inspection chamber TKS PLUS.

Planting systems

Planting medium

Extensive substrate E (60 mm).

Planting requirements

Pre-cultivated sedum mat with decomposable carrier.

Plug planting.

Wildflower-based vegetation mats.

Fire breaks

Manufacturer guidance

Edge restraints

Manufacturer guidance

Weight

System depth

Manufacturer guidance

Roof pitch

Discharge

Manufacturer guidance

System accessories

Manufacturer guidance

Sustainability data

Country of material origin

Country of product manufacture

Material

Recycled content

Manufacturer guidance

Literature

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