Biodiverse Lightweight Green Roof System

Minimum order 10m2

This system includes 5 layers:

  • Biodiverse Sedum & Herb Blanket
  • Roof Garden Substrate
  • Drainage Type 20R
  • Protective Cover
  • Root Barrier Foil

The build-up of this traditional green roof system creates a beautifully sustainable green roof.  The 135mm roof garden substrate layer is developed in accordance with FLL guidelines and is nutrient-rich, ensuring healthy, robust sedum plants. Grown with a mix of 30 different types of herbs and 12 species of hardy succulents, each has been chosen over many years of growing experience by our growers, for their ability to absorb and retain water, and thrive in adverse weather conditions. The plants are grown on a substrate consisting of lava, pumice, and compost. The sedum blankets in this system provide at least 95% plant coverage, ensuring an instant green roof. The drainage sheet is made from recycled polyethene (HDPE) and the top of the sheet is covered with a fleece filter; this protective fleece is made from recycled fibres.

If you are creating a gravel border around the roof edges, skylights, lanterns or drainage areas, it is important to add an additional drainage layer to sit beneath the gravel.

Ideal for: Domestic & commercial roofs, garden rooms, flat roofs 0 – 5°.

We have solutions for pitches up to 45°. Please get in touch for advice.

Ideal for:

Roofs with a known weight bearing capacity of 90-95kg/m2

Structure:

3 layers to install,  Drainage layer, Roof Garden Substrate, Sedum vegetation blanket.

For extra protection, our Protective Layer and Root Barrier foil can be purchased as additional products.

Weight:

90-95kg/m2 saturated

Weight 0.666660 kg
Coverage

95%

Saturated Weight

Approx. 121kg/m2

Thickness

13.5cm

No. of m2 in a pallet

12m2

Pallet Size

130cm x 110cm

Drainage Layer

2cm

Roof garden substrate

7cm

Sedum mix vegetation blanket

3cm

Roof Weight Bearing Capacity

121kg/m2

Roof Pitch

0 – 5°

The (minimum) maintenance depends on the build-up of the system, we recommend you fertilise twice a year with a long-acting fertiliser.