Boughton Extra Lightweight

EX Light

Boughton Extra Lightweight Green Roof Substrate mixture makes it an ideal growing media for green roofs where weight loading is an issue.

Its low bulk density, even at field capacity, allows it to be installed to a much deeper depth than conventional extensive substrates, improving the growing environment for plants. Its free draining nature prevents the substrate from becoming saturated, making it ideal for drought tolerant plants.


Product Properties

  • Bulk density oven dried (g cm-3) 0.7
  • Bulk density at 10% VMC (g cm-3) 0.83
  • Bulk density at field capacity (g cm-3) 1.13
  • Field Capacity (% v/v) 41.0
  • Particle Density (g cm-3) 0.98
  • Total Porosity (%) 71.8
  • Porosity at Field Capacity (%) 28.9
  • Effective Porosity (%) 42.9
  • Saturated Hydraulic Conductivity
    (mm min-1) 213

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Applications & Installation

Boughton Extra Lightweight would normally be applied at depths between 80 and 150mm. This would allow for a varied planting scheme where a heavier substrate would limit the depth and therefore the diversity. Boughton Extra Lightweight should be laid directly onto drainage board.

Boughton Extra Lightweight Green Roof Substrate meets and exceeds all present G.R.O guidelines. The depth of substrate is determined by the planting scheme and the weight loading capability of the roof which must be assessed by a qualified structural engineer. Our substrates can be delivered in any required format. This includes 25ltr and IBC Bulk bags. Or loose tipped as required

To specify this product (copy & paste)

Product Name: Boughton EX Lite

Manufacturer: Boughton Loam Ltd

Address: Boughton Loam LTd, Telford Way, Telford Way Industrial Estate, NN16 8UN

Telephone: 01536 510515

Email: enquiries@boughton.co.uk

Website: www.boughton.co.uk

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