Intensive Green Roof Diagram

4 plant evaluation notes the two 8 000 square foot green roofs lo cated on the north and south sides of the.

Intensive green roof diagram. 1 extensive vegetative roofs which are 6 inches or shallower and are frequently designed to satisfy specific engineering and performance goals and 2 intensive vegetative roofs which may become quite deep and merge into more familiar on structure plaza landscapes with promenades lawn large perennial plants and trees. Green roofs are also known as vegetative or eco roofs. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species. What is a green roof.

Semi intensive green roofs are a heavier system with a saturated weight of 30 to 50 pounds per square foot and a growing medium of 6 to 12 inches. Intensive green roofs. These types of green roofs are called intensive green roofs. They require a layer of growing medium soil to support this much thicker vegetation layer.

Larger green roofs can incorporate sections of varying depths that allow for many types of plants shrubs and trees. This is most noticeable in intensive green roofs since there is a thicker and more consistent layer of soil which provides a higher insulating value. Extensive green roofs. 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.

It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants. 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. 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.

These types of roofs can weigh 35 pounds per square foot or more when saturated not including trees. Although there are no precise definitions of. For a conventional roof. 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.

You may find that they are referred to as roof gardens. 8 to 20 per square foot. They fall into three main categories extensive intensive and semi intensive. These systems are ideal for efficient stormwater.

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. Intensive green roofs are designed to support much larger items like bushes and small trees as well as a wider variety of plants.