Green Roof Intensive Vs Extensive

Semi intensive roofs are generally used within highly visible area s to improve aesthetic design using small shrubs forbs and grasses.

Green roof intensive vs extensive.

Intensive vs extensive a green roof comes in two varieties. A properly designed and installed extensive green roof system can cost 108 248 m 2 10 23 sq ft while an intensive green roof costs 355 2 368 m 2 33 220 sq ft however since most of the materials used to build the green roof can be salvaged it is estimated that the cost of replacing a green roof is generally one third of the initial installation costs. Intensive includes a thick layer of soil that can support large vegetation such as small trees. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.

15 to 50 per square foot. 8 to 20 per square foot. Typically these roofs will have more soil and some small shrubs as well as the low growing wildflowers and sedums found on an extensive roof. These systems are ideal for efficient stormwater.

In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs. Planted roofs create living space for animal species. The plants that are mostly used on extensively planted roofs include grasses mosses herbs and. Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used.

An extensive green roof is characterized by a thinner layer of soil and smaller plants. Extensive green roof an extensive green roof system is characterized of its vegetation ranging from sedums to small grasses herbs and flowering herbaceous plants which need little maintenance and no permanent irrigation system the growing medium depth for an extensive green roof system is typically 6 inches or less. A 2006 study by the university of michigan comparing costs of conventional and green roofs showed that on average installing a green roof costs about 22 00 sq. The green roof as a habitat.

For a conventional roof. Our semi intensive green roof systems include a richer deeper substrate and drainage solution compared to extensive roofs enabling use of a wider range of complex plant mixtures. Extensive green roofs.