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Intensive Green Roof Substrates

Green Roof Substrates are specifically engineered for different types of roof greening, both for domestic and commercial projects.

Intensive Green Roof Substrates are engineered to suit larger vegetation, such as shrubs and trees. Intensive green roofs can be considered “roof gardens” and therefore require growing media with a higher nutrient content. These types of green roof often have very deep root-zones (200mm – 2m) so although they still need to be lightweight, this is not as much of an issue as with extensive systems. These types of roof also tend to be associated with water irrigation systems so the water-holding capacity again does not have to be as large as in extensive blends.

We also specialise in Extensive Green Roof Substrates, for use on shallow green roof systems (<200mm).

Our green roof substrate blends are modified for all these different planting schemes so please get in touch with us for the best type for your product. We also recommend certain depths of growing media for particular planting, so if you are unsure of what you require please get in contact.

All our substrates are based on the German FLL green roof guidelines to ensure that all essential properties have been considered and tested. Boughton Loam has supplied substrate for many successful green roof projects all over the country – see our case studies section for more information.

Boughton Loam Intensive Green Roof Substrate Mix analysis

Boughton Green Roof Projects