Primary functions Primary planting General System Type Maintenance Required Roof construction Plant Layer Suitable application

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Abraham Moore
5 years ago
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General The Greenroofs by Blackdown NatureMat extensive green roof system creates a self sustaining plant community that does not require irrigation, except on installation.

waterproofing including asphalt, bitumen, hot melt, liquid applied, single ply and standing seam aluminium and provides a wide range of environmental benefits.

1 General The Greenroofs by Blackdown NatureMat extensive green roof system creates a self sustaining plant community that does not require irrigation, except on installation. Comprising a UK grown sedum blanket, Vulkatec Extensive mineral based growing medium and a composite drainage and protection layer the system is suitable for use on a variety of types of waterproofing including asphalt, bitumen, hot melt, liquid applied, single ply and standing seam aluminium and provides a wide range of environmental benefits. Plant Layer NatureMat, developed and grown by Blackdown s horticulturalists, is a high quality sedum blanket consisting of randomly sown sedum species chosen for their drought tolerance and ability to self-generate in the harsh roof environment, making them very suited to lightweight extensive green roofing. Grown to maturity in Somerset NatureMat provides 90-95% plant coverage on installation. After application the system forms a dense flower carpet during the summer months in various hues of white, pink, red and yellow and provides an evergreen backbone during winter, in foliar shades of green to red. Growing Medium Layer Vulkatec Extensive is a specialist mineral based plant growing medium consisting of natural pumice, lava, bark compost, green compost, peat and xylith. Factory blended and stabalised against de-mixing Vulkatec Extensive substrate provides a high total pore volume balanced with good nutritive substance buffering for exceptional plant germination and growth. Primary functions Amenity Aesthetics Biodiversity Habitat creation BAP compliance BREEAM benefit Rainfall management Carbon capture Thermal gain Acoustic benefit Primary planting Sedum Wildflower Hardy succulent perennial Shrub Grass System Type Extensive Intensive Biodiverse Green Wall Maintenance Required Yes No Roof construction New refurbishment Warm inverted Cold Suitable application Flat up to 8 pitch up to 25 pitch up to 45 pitch up to 60 pitch Vertical Suitable Locations Drainage/Protection layer BHC 920 is a factory laminated composite that ensure effective protection or the waterproofing whilst ensuring that water is both retained to help sustain plant life and drained to avoid water logging of the substrate. For further information on the individual component layers please see the relevant Product Data Sheet. NBS Q37 format specifications and BoQ descriptions are also available from the Blackdown website. Ease of Installation 1

2 Applications Suitable for both new and refurbishment roofing applications the Greenroofs by Blackdown Naturemat extensive green roof system can be installed on roofs of almost any shape, size or pitch, and on a variety of SIG Design & Waterproofing single ply and Liquid applied waterproofing solutions. The weight of the Naturemat blankets make them more suitable to sites where there is a high degree of wind uplift to be taken into consideration, and they are often more suitable to pitched roof applications where they eliminate the risk of substrate erosion through wind scour. Pre-establishment of the plant system can also be preferential for coastal applications where the high local concentrations of salt in the atmosphere can affect the establishment of plug plant or hydroseed systems. The pre-grown nature of the system provides immediate greening, achieving a minimum of 90% green cover on delivery, making the system particularly suited to highly visible projects. The sedum species in the Naturemat extensive green roof system prefers bright well drained sites but will tolerate most site conditions, except those that are waterlogged or heavily shaded. Once established the system requires minimal maintenance and no watering. Naturemat blankets can also be used to provide ground cover in areas that are difficult to plant or maintain e.g. embankments, roundabouts, tramway beds etc. Greenroofs by Blackdown can also provide custom grown bespoke mixes of Naturemat to meet a specific local requirement. Performance and Properties Life Expectancy Lifetime of the Building (with maintenance) Maintenance Annual Plant Coverage 90-95% Naturemat Base Coir (coconut fibre) mat, or recycled wool mat Composition Growing medium Specially formulated growing medium designed to facilities optimal root architecture, comprising inorganic and organic compounds Planting Hardy succulent planting (Sedums) as below. Sedum species Sedum acre present Sedum album subsp. teretifolium (population Sedum hispanicum varies per m²) Sedum hybridum Czar s Gold Sedum kamtschaticum Weihenstephaner Gold Sedum lydium Sedum rupestre Sedum sexangulare Sedum spurium Fuldaglut Mat Thickness 20-25mm on shipment Standard Roll 1.5m x 1.0m (1.5m²) Size Roll Weight 20 to 28kg/m² (37.5 to 45kg roll) depending on moisture content

Sedum acre is a native hardy succulent species, nectar rich and very

3 Naturemat productions during the Spring, showing a high rate of Sedum acre (yellow flowers) growth. Sedum acre is a native hardy succulent species, nectar rich and very attractive to wildlife. Lakeland Plastics Windermere XXX m² Showing primarily native Sedum album subsp. teretifolium in flower

4 West Ham Bus Garage London 4,500m² Green roof of the Year Roofing Awards 2011 Greenhill and Brinkroft School Nottingham

5 Centre for Disability Care Essex Soon after installation Seen in flower during summer

6 St Martins s in the field school London Old Rectory Rotherwick

Blackdown +44 (0)

Blackdown +44 (0) Blackdown Green Roof Systems Intensive, Semi-Intensive, Bio-Diverse and Extensive Green Roofs offer a variety of environmental benefits. Blackdown are horticultural experts and offer a single source solution