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Private Roof Garden in Victoria Embankment - Intensive Lightweight Roof Soil and Washed Sand

London's highest botanical gardens on the 35th floor of the "Walkie-Talkie" Building - bulk bags of BS3882 topsoil and BS8601 subsoil

2014 BALI award winning Roof top in Central London - Intensive Lightweight Roof soil

Olympic Park and Athletes Village - supply of 7 types of Topsoil and Subsoil

2014 BALI award winning domestic garden, conversion of an old Church yard - over 100 Bulk Bags of Ericaceous topsoil

Stunning rear garden conversion in Hampstead - over 500 tonne of TS6 topsoil grabbed into position

Post games conversion of Olympic Park into Queen Elizabeth Olympic Park - over 20,000 tonne of high permeability turf soil and structural tree sand

2014 Grounds Maintenance BALI award winner for the Twickenham Stoop - TS6 topsoil and washed sports sand

250 semi-mature trees planted to create a park feel in the heart of the city - TS6 topsoil and structural treesand


A simple guide to save you money


We can deliver, whatever quantity you need


See our FAQ section or just ask!


Intensive Roof Substrate

Intensive Roof Substrate

Intensive roof gardens are in essence fully fledged gardens, elevated to roof level. They are gardens used for recreational and leisure purposes, whereas Extensive roofs are predominantly zero maintenance, and have more of a practical purpose.

If you are looking to create a planting scheme involving tree or shrub planting then you require a proper free-draining and nutritionally sustainable planting loam. Intensive roof gardens are identical to any standardised "floor" garden and require maintenance, irrigation and management throughout the year.

Our Intensive Roof Substrates is purely an evolution of the standard BS3882:2015 multipurpose topsoil, but with an added element to bring down the bulk density. A clean, free-draining (sandy) loam with good levels of NP and K is blended with Lightweight Expanded Clay Aggregate to create a relatively free draining substrate that will sustain a variety of planting schemes.

You will see from our technical product information (on the left) that the characteristics of Intensive Roof Substrates are identical to a BS3882:2015 multipurpose topsoil, with the predomiant difference being the dry and saturated bulk densities. Ideally your saturated bulk density won't exceed 1,200kg per cubic metre (standard topsoil is around 1,600kg) with a dry bulk density around 850kg.

We have implemented our Intensive Roof Substrates extensively across the London sky line (most recently the Sky Garden in the "Walkie Talkie" building in central London, pictured above) as well as schemes across the South-East.

Please call us on 01797 252299 for more information on our Intensive Roof Substrates or any of our other lightweight roof substrates, and please consult the techincal information on the left hand side of the page for the key data.



Having our own fleet of tippers, grabs and hiab offload facilities allows us the flexibility and reliability to deliver any quantity to you on time with minimal fuss. Plus our drivers have extensive experience of delivering into some very demanding areas, like central London (our entire fleet has been passed by TFL on their FORS scheme).
* For more details see Delivery

We operate two bagging sites in Kent where we have the capacity to bag the majority of our products in either bulk bags or smaller 25kg bags.

    • Up to 40m3
      (lightweight materials)
    • Up to 20 tonne
    • 4/6/8 wheel
    • Up to 40m3
      (lightweight materials)
    • Up to 16 tonne
    • 4/6/8 wheel

    • Up to 50m3
      (lightweight materials)
    • Up to 30 tonne

    • 1m3
      (bark, compost, lightweight soils, manure)
    • 850-950kg


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"We have worked with Bourne Amenity for the past seven years and have always been impressed with their attention to detail and flexibility on delivery. Nothing is too much of a problem and their materials are always of a consistent high quality."
Steve Hyder, Contracts and Services Officer, Tandridge District Council
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