Types of living roof

Extensive living roofs are used to create an ecological landscape on the roof of a building and are the lowest cost form of living roofs. Using mostly sedum, moss, perennial herbs and grasses they are based on a thinner substrate and generally require little maintenance and are hugely beneficial to wildlife and biodiversity.

Semi-intensive living roofs are used to create a combination of a roof garden and an ecological landscape, planted using grasses, sedum, perennial herbs and small shrubs. They are more expensive than extensive living roofs and require more maintenance, but they provide the benefits of additional outdoor space as well as being beneficial to wildlife.

Intensive living roofs involve the creation of a garden or public area on the roof of a building. Using a deep substrate they are suitable for a broader range of planting, including shrubs and small trees. An Intensive living roof is the highest in price but also the most versatile in terms of uses.