Biodiverse roofs are designed to create a habitat for a specific requirement of flora and fauna and are generally designed as part of an extensive green roof.

Sometimes also referred to as Brown Roofs, they are often designed to replicate the original footprint of the building or are created to enhance the pre-development habitat with additional plant species. The growing medium is purposely selected to allow indigenous plant species to inhabit the roof over time.

Axter supply specialist growing mediums to suit the requirements of the planting regime, but in many cases soil and spoil from the development site can be recycled and used on the roof. A variety of habitats can be created on such roofs by contouring the soil, providing a variety of substrates, soil, rocks, sand, gravel, crushed concrete and the addition of features such as rotting wood and ponds. The objective is to create a number of different environments on the rooftop, each favouring different species and therefore increasing biodiversity.

Living Roof Design Example

Benefits

  • Increases indigenous biodiversity of the development site
  • Landscaped areas with different contour levels attract different wildlife
  • Logs provide habitat for invertebrates
  • Wetland areas and ponds provide ecosystems for wildlife
  • Using seeds or plug plants of species that are indigenous to the area
  • Reclaimed or recycled materials from the building site itself can be used
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