Biodiverse roofs (previously known as brown roofs or brown field sites) are becoming increasingly popular in the UK. They aim to replicate as far as possible the natural habitats that would previously be found in the local ecological area. British native plants and seeds are used to replicate nature as closely as possible. The biodiverse roof has a similar build up to the other roof systems, but the vegetation is carefully chosen and designed to provide optimum natural habitats supporting an array of species, whether it be plants insects birds animals or invertebrates. To further enhance the biodiverse benefits other natural materials are used, such as bare soil and piles of bricks, logs or stones, it is important aspect of the roof and the size and placement of these materials need to be carefully placed and considered for best results.