Extensive Green Roof Vs Internsive

Semi intensive green roofs as their name states are a combination of the aforementioned two types.

Extensive green roof vs internsive.

A green roof is a flat roof that may be systematically planted with for example varieties of sedum moss or grass but also with perennials and even bushes and trees. You can compare an intensive roof to a normal garden and this is why an intensive green roof is also known as a roof garden or garden roof. Intensive includes a thick layer of soil that can support large vegetation such as small trees. 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.

For a conventional roof. These systems are ideal for efficient stormwater. 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. The depth of an intensive green roof ranges from 15 cm to as much as 150 cm and can easily weigh as much 300 to more than 1500 kg m2.

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. Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. Semi intensive roofs are generally used within highly visible area s to improve aesthetic design using small shrubs forbs and grasses. To bear this weight an expensive custom support structure is required.

It improves the appearance of a building and in big cities especially it serves as a substitute garden thus boosting the residential value. The extensive garden roof assembly is ideally suited for locations that will receive little maintenance or where structural capabilities are a concern. Intensive vs extensive a green roof comes in two varieties. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.

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. Unlike intensive garden roof assemblies extensive garden roofs are not intended for recreational use and are typically chosen for their appearance or to help reduce the urban heat island. An extensive green roof is characterized by a thinner layer of soil and smaller plants. 8 to 20 per square foot.

15 to 50 per square foot. Extensive green roofs. A green roof has many advantages.