Extensive Green Roof Irrigation

Extensive green roof at pets at home hedge end retail park southampton.

Extensive green roof irrigation.

Intensive roof soil is much more like traditional landscapes with a higher level of organics and it conducts water much better. Extensive green roof systems establish plant cover that will after a consolidation period of variable duration maintain itself somewhat autonomously with little or no need for artificial watering. 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. It is difficult to justify the necessity of an irrigation system for extensive green roofs.

Sedums other low growing succulent species many grasses and herbaceous plants require no irrigation. In cases where a green roof irrigation system is installed a regular supplementary check of the system is part of the maintenance routine which means turning the system on and off at the beginning and end of the irrigation season. Succulents such as sedum are often chosen for extensive green roofs because they withstand harsh conditions and minimize water loss. An irrigation system wastes potable water on plants that do not need it.

There are numerous permanent irrigation solutions available on the market supplied either as part of the planter green roof solution or as optional extras and these can either be automated or manually operated. Extensive green roofs. These systems are ideal for efficient stormwater. And the system must be blown out before the first freeze of the fall.

As mentioned above regions with a temperate climate are faced increasingly with dry periods. In canada for example this is the greater vancouver area and the greater toronto area. Plants for extensive green roofs plants for extensive green roofs should have low growth height rapid growth spreading and fibrous roots that have high drought tolerance. While green roofs are designed to be sustainable features in the urban landscape it takes a little ingenuity a bit of imagination and a lot of product and plant knowledge to make the whole project come together.

In extensive green roofs you have more coarse aggregates that have poor capillary qualities and do not conduct water effectively. The main plants used in our systems are succulent plants from the crassulaceae family especially sedum which require little water.