It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.
Intensive green roof diagram.
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.
8 to 20 per square foot.
You may find that they are referred to as roof gardens.
For a conventional roof.
A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.
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 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.
They fall into three main categories extensive intensive and semi intensive.
Intensive green roofs.
What is a green roof.
These systems are ideal for efficient stormwater.
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.
These types of roofs can weigh 35 pounds per square foot or more when saturated not including 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.
Vegetative roofs are divided into two categories.
Green roofs are also known as vegetative or eco roofs.
Although there are no precise definitions of.
15 to 50 per square foot.
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.
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.
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.
Extensive green roofs.
Green roofs can help reduce energy costs for a building by acting as another layer of insulation between the inside and outside of the roof.
These types of green roofs are called intensive 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.