Extensive Green Roof System

Extensive green roofs are designed to be low maintenance lightweight systems with no general access.

Extensive green roof system.

Extensive systems weigh anywhere from 10 to 25 pounds per square foot when dry which is why the interlocking system of trays is important otherwise strong winds could very easily blow the plantings away. An extensive garden roof assembly can be applied to flat roofs and sloping roofs with a pitch of up to 12 12 or 45 provided the appropriate measures are taken to cope with the shear forces and soil retention. They fall into three main categories extensive intensive and semi intensive. Extensive green roofs.

Finally the extensive green roof is a system that is generally inaccessible to pedestrians. From a distance an extensive sedum roof can be mistaken for a grass field. Besides the visual impact of an extensive green roof they also provide a natural habitat for birds and insects. For a conventional roof.

Typically they have thin layers of substrate the growing medium to keep depth and weight to a minimum. These are covered with low growing plants such as evergreen sedums. This multifunctional ce marked drainage system with high compressive strength protects the vegetation from water stagnation while at the same time storing water for dry periods in the built in water reservoir. The biggest benefit of extensive green roofs is that they need very little maintenance.

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. 15 to 50 per square foot. 8 to 20 per square foot. A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof.

Green roofs are also known as vegetative or eco 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. Three types of green roofs exist. The movement of people is limited to maintaining a watertight roofing membrane and the health of the plants.

The heart of the nophadrain extensive green roof system the nd 4 1h drainage system is the ideal under layer for an extensive green roof. To start with take a look at the most simple family of green roofs. These systems are ideal for efficient stormwater. Extensive green roofs sedum roof systems.