Icopal ST Biodiverse Seed & Plug - Extensive Biodiverse Green Roof System

Icopal ST Biodiverse Seed & Plug - Extensive Biodiverse Green Roof System

An extensive green roof system designed to create a biodiverse habitat utilising a specially formulated free-draining substrate and drainage board. The vegetation is created using both wildflower /grass seed and plug plant mix which is allowed to grow and develop over time.
 

Icopal ST Biodiverse Seed & Plug - Extensive Biodiverse Green Roof System1. Icopal Biodiverse Plug Plants

2. Icopal Biodiverse Seed Mix

3. Icopal Extensive Biodiverse Substrate

4. Icopal Filter Fleece (pre-bonded to drainage board)

5. Icopal Drainage Board 20 FF

6. Icopal Protection Fleece

7. Icopal Waterproofing System

 

 Biodiverse-Seed-and-Plug-Extensive-Green-Roof-System-Rating

System Properties
The following data relates to the green roof element only.
System Dry Weight: 125 kg/m²  
System Saturated Weight: 150 kg/m²
System Typical Depth: 125mm
Growing Substrate Depth: 100 mm (settled)
Contouring: Undulating (75 - 125 mm)

Key Features

  • A biodiverse system suitable for a range of roof construction types.
  • Attractive mix of wildflower and grass species.
  • Option to introduce logs and boulders to encourage invertebrates.
  • Undulating substrate depths create greater diversity of flora and fauna.
  • More flexibility for the layout and planting density.
  • More cost effective than a pre-grown mat.
  • Excellent range of bio-diversity.
  • Excellent provision of pollen and nectar to attract insects.
  • Suitable for flat and low pitched roofs.
  • Medium – low maintenance
  • Biodiversity & Plant Species

    The wildflower and grass species mix is designed to create food, nectar and pollen sources for a wide range of invertebrate species. These roofs can be left relatively undisturbed to attract ground nesting birds.

    Log and stone piles may be placed over the surface to create shelter for an even wider selection of invertebrate species.

    The optimum time for sowing is late summer / early autumn, with April-May the next best window. Sow onto the surface but do not rake in. Instead, walk over the newly sown area to firm and level the seed bed and create good seed / soil contact.

    Flowering Period: May – August.

    Typical Colours: Seasonal variation of yellows, whites, reds and pinks. Foliage turns from green to brown in the autumn.

    Planting Density: 20 plugs/sqm over 20% of the roof surface (generally planted in the deeper substrate areas).

    Sowing Density: 1 – 3g/sqm over full area.

    Typical Species: (subject to season variation)
    Wildflower species -Agrimonia, anthyllis, centaurea, clinopodium, echium, galium, hypericum, knautia, leontodon, leucanthemum, linaria, lotus, malva, origanum, plantago, primula, prunella, ranunculus x 2, reseda, sanguisorba, silene. Grass species -Briza, cynosurus, festuca x 2, phleum, trisetum.

    Flower Attraction
    Moderate mixed pollen source, applicable to Bees, hoverfly, Ladybirds.

    Establishment Period: 12 months and typically 24– 36 months to achieve desired ground cover.

  • Design Notes & Considerations

    General Notes

    The Icopal ST Biodiverse Seed & Plug extensive system can be installed on flat roofs and those with shallow pitches, generally no greater than 15°. For slopes over 9° a retention system is required. All slopes over 5° will require a mechanically fixed eaves edge restraint.

    Detailing

    A border with a recommended width of 300 – 500 mm of washed river stones (20 – 40 mm diameter) should be used around all roof penetrations and perimeters to provide a vegetation free zone.

    Irrigation

    Irrigation required immediately after installation for up to 8 – 12 months until fully established. Once established irrigation is only generally required during prolonged periods of hot dry weather.

    Water Source: A roof top source with a pressure of 2.5 – 3 bar and a flow rate of 60 L/min is recommended to connect a temporary system if required.

    Maintenance

    An annual maintenance schedule is recommended to remove invasive plant and weed species, to check outlets are working correctly and to apply granular fertiliser. Vegetation and flower growth is expected to be between 20 and 100 mm. It is recommended that the roof is strimmed in the early spring and autumn (after the flowers have dropped their seed), and all cuttings removed to allow the roof to thrive.

  • System Downloads - Datasheets & Product Information Sheets

    On this page you can download our information and documentation in one place. Click on any of the acrobat icons below and the brochure will start to download.

    Brochures

    download pdf Icopal Green Roof Systems - Waterproofing & Living Roof Solutions

     

    System Design Sheets

    download pdf Icopal ST Biodiverse Seed & Plug System (ICO3020)

     

    Product Information Sheets

    download pdf Icopal Drainage Board 20 FF (ICO2980)
    download pdf Icopal Biodiverse Substrate (ICO2982)
    download pdf Icopal Protection Fleece (ICO2986)
    download pdf Icopal Habitat Zone Pack (ICO2987)
    download pdf Roofgard Terrace Grate (ICO3025)
    download pdf Icopal Washed Riverstones (ICO3026)
    download pdf Icopal Edge Restraint (ICO3027)
    download pdf Icopal Filter Fleece (ICO3029)
  • Technical Support & Bespoke Green Roof Systems

    In the sections of our website above you can find details on many of our standard green roof systems that we offer as a simple solution to the needs of our clients most common requests.

    There are also many other alternative green roof systems that we can offer as a bespoke package to meet your projects specific needs.

    How We Can Help You

    Find Local SupportIcopal has a dedicated field service, with a network of technical advisers throughout the UK & Ireland, available to provide a bespoke insured green roof specification to meet your exact project requirements. Our advisory service for specifiers and contractors is free of charge. Our technical advisers are available at any time during working hours to answer queries on any aspect of green roofing design. 

    Services Include:

    Site Inspection - Experienced Icopal Area Technical Managers can provide a comprehensive site inspection and condition report prior to making any recommendations for product use or installation. Site inspections can include a detailed commentary and photographic record, core sampling, fixing pull-out tests and thermographic imaging analysis where appropriate

    Design Assistance - Icopal provides a range of design services to support project delivery, including all required calculations:

    • Specification - Bespoke system specifications can be generated for each project, based upon specific design criteria. Specifications can be provided in a variety of formats to suit customer requirements.
    • Drawings - Project specific detail drawings can be prepared showing critical interface detailing and airtight system terminations.


    Approved Contractors -
    Installation of the Icopal Green Roof System is carried out exclusively by a network of trained and approved contractors who can demonstrate excellence in all aspects of roofing and landscaping. Using an Icopal Approved Contractor ensures quality right from the start giving you access to a wealth of experience and technical skill protecting your investment with unrivalled guarantees.

    Click here to find your local Icopal Technical Adviser

     

    Alternatively our head office technical support team can be contacted on:

    0161 865 4444

     or click here to send a bespoke green roof form to our technical support team and we will contact you shortly.

Contact Icopal 0161 8654444

Find Local Support

To discuss your project in more detail please contact
Your Local Area Manager

 

Technical Support

Telephone:

0330 123 4585

Email: technical.uk@bmigroup.com

 

Sales Enquiries & Orders

Telephone:

0843 224 7400

Fax:

0843 224 7401

Email: sales.admin@bmigroup.com

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