Used for roofs designed to be ‘brown’ or self-populating. Type B1 Mix can be used where diverse habitats are required. The B1 mix contains crushed brick and blended topsoil. Organic compost can be included if required. For a pure brown roof the substrate can be left to self-colonise, or alternatively…

Semi-Intensive Green Roof substrate is used in situations where a mix of extensive and intensive conditions are required. It generally has a growth medium far deeper than a normal intensive or extensive build-up, facilitating a more diverse roof ecosystem. Applications where Semi-Intensive substrate is used generally require a higher organic…

Wraxalls Extensive Green Roof Substrate E1 Wraxalls Extensive Green Roof Substrate E1 is engineered to suit larger vegetation with deeper root systems.  Extensive roofs are often regarded as ‘roof gardens’ and demand growing media with a higher nutrient content. This type of roof tends to be delivered with water irrigation…