Simple Intensive Green Roof

Intensive systems allow the designer to create a park like setting so they are the best option for roof gardens that will be occupied.

Simple intensive green roof.

1 intensive green roof if you want your roof to function as a garden and have large plants and even water features then the intensive green roof is for you. There are three basic types of green roof system. The simple intensive green roof. From a distance an extensive sedum roof can be mistaken for a grass field.

You may find that they are referred to as roof gardens. For a conventional roof. 15 to 50 per square foot. Semi intensive system requires some maintenance from time to time.

Intensive green roofs are designed to support much larger items like bushes and small trees as well as a wider variety of plants. In many instances an extensive green roof can be a planning requisite and the ideal solution is the simplest lightweight sedum blanket system. Intensive green roofs require the deepest soil and have the greatest impact on the structural design but they also accommodate all types of plantings including large shrubs and trees. To start with take a look at the most simple family of green roofs.

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. Extensive systems are for roof areas that are out of reach and not used for other purposes. This system is able to retain more stormwater than an extensive system and provides the potential to host a richer ecology. Other options are substrate based systems that are plug planted to the client s requirement or seeded for natural colonisation.

A typical growing medium depth for a semi intensive green roof is 6 to 12 inches. These areas need appropriate vegetation that will make them low maintenance and self sustaining. Semi intensive green roof a semi intensive green roof system is characterized by small herbaceous plants ground covers grasses and small shrubs requiring moderate maintenance and occasional irrigation. 8 to 20 per square foot.

These are covered with low growing plants such as evergreen sedums. They require a layer of growing medium soil to support this much thicker vegetation layer. The basic anatomy of a green roof consists of vegetation growing medium filter membrane drainage layer waterproof root repellant layer roofing membrane support for plantings above thermal insulation vapor control layer and structural roof support.