Summary
Extensive Sedum Living Roof systems provide all the benefits of a drought tolerant and lightweight extensive living roof.
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Application
- Designed to be used in conjunction with the Langley RBM, Hotmelt and Liquid waterproof systems.
- Designed for both new build and refurbishment, on roofs of ≤10° pitch.
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Description
Langley Extensive Sedum Living Roof systems are designed to be used in conjunction with the Langley RBM, Hotmelt and Liquid waterproof systems and provides all the benefits of a drought tolerant, and lightweight extensive living roof.
Substrates are GRO compliant and tested to BS 8616:2019.
Our 20mm cuspated drainage / reservoir layer is constructed from HDPE (High Density Polyethylene) and includes a laminated upper filtration & bottom *protection fleece (* required on warm & cold roofs only) to simplify installations and ensure consistency across the living roof.
Fire Performance – the Langley sedum systems can achieve BRoof(t4) compliance when tested as part of a full Langley roof buildup.
Mat: Plant coverage upon installation: 90-95%. Langley Sedum mat comprises of 18 hardy & drought tolerant succulents
Plug Plant option: Plant coverage 5% upon installation & approx. 90-95% after 9-12 months. Includes a selection of up to 13 hardy & drought tolerant succulents
Features and benefits:
- Offers a lightweight, and aesthetically pleasing extensive living roof system.
- Fully GRO compliant.
- Designed for both new build and refurbishment, on roofs of ≤10° pitch.
- Can achieve BROOF(t4) compliance when tested as part of a full Langley roof build-up.
This is covered by our Independent Insurance Backed Guarantees of up to 30 years aligned to the associated Langley waterproofing system.
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Color
Green, Other
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Finish
Natural
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Material
Vegetation, Other
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Shape
Formless
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Length
Bespoke
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Width
Bespoke
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Height
Bespoke
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Warranty description
Other
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Specification
Classification data
Moisture control
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Drainage layer
Langley 20 mm 3-in-1 moisture control layer.
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Drainage ancillaries
Inspection chamber(s)., Not required.
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Planting systems
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Planting medium
Extensive sedum substrate, depth 60 mm.
Dry weight 43.2 kg/m²; saturated weight 85.2 kg/m².
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Planting requirements
Sedum mat.
Plant coverage upon installation: 90–95%.
Comprised of 18 hardy and drought-tolerant succulents installed on a minimum of 60 mm of extensive substrate.
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Fire breaks
20–40 mm shingle margins.
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Edge restraints
Langley aluminium slotted retention and separation trim., Not required.
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Additional properties
Accessories
Sedum nutrient., None.
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Standards
GRO, FLL and Broof(t4) compliant.
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Sustainability data
Material
Vegetation, Other
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