Boughton EX 2

EX 2

Boughton Extensive Green Roof Substrate 2 has a higher amount of organic matter compared to conventional extensive green roof substrates. The mixture is very effective at retaining moisture and releasing it slowly. This means that the mixture is suited to projects where more intensive planting is required and weight loading is less of an issue.

The substrate is also suitable as a Semi-Intensive substrate due to its relatively low hydraulic conductivity, making it perfect for areas prone to high levels of rainfall.

Product Properties

  • Bulk density oven dried (g cm-3) 0.9
  • Bulk density at 10% VMC (g cm-3) 1.14
  • Bulk density at field capacity (g cm-3) 1.48
  • Field Capacity (% v/v) 56.6
  • Particle Density (g cm-3) 1.70
  • Total Porosity (%) 52.7
  • Porosity at Field Capacity (%) 50.9
  • Effective Porosity (%) 1.8
  • Saturated Hydraulic Conductivity
    (mm min-1) 7

To download or print our full product specification,

please click here


Applications & Installation

Boughton Extensive 2 mix with its higher organic matter content can be used where there is no ongoing irrigation available. Ideally it should be laid at a minimum of 80mm and is designed for sedum dominated schemes.

Boughton EX2 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 2

Manufacturer: Boughton Loam Ltd

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

Telephone: 01536 510515



Similar Products



Please click here to leave feedback

Get in touch to discuss any requirements