Intensive Versus Extensive Roof Garden

If you increase that planting depth by a foot or two though a whole new realm of possibility opens up.

Intensive versus extensive roof garden.

The distinction is based on the kind of plant involved. Vegetative roofs are divided into two categories. Extensive roof gardens are lighter cheaper and shallower. Intensive planting there are two ways of planting a roof.

Intensive green roofs. Intensive includes a thick layer of soil that can support large vegetation such as small trees. However the gardendrain component has a taller profile and is filled with expanded aggregate to provide greater water storage and to support a greater depth of growing. Intensive vs extensive a green roof comes in two varieties.

There are two general types of green roofs. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants. Another term for these green roofs is rooftop garden intensive green roofs require more maintenance because of the plant varieties they will support. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species.

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

The landscape possibilities with an intensive garden roof assembly are virtually limitless. For existing homes glazer recommends the extensive roof garden. Intended for recreational sporting and leisure purposes they are often indistinguishable from at grade landscapes. An intensive assembly follows the same design concept as an extensive assembly.

The intensive green roof uses planting mediums that have greater depth than the extensive green roof. This deeper soil allows intensive roofs to accommodate large plants and dramatic plant groupings. The plants that are mostly used on extensively planted roofs include grasses mosses herbs and succulents. 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.

Intensive green roofs weigh from 35 pounds to beyond 100 pounds per square foot when dry it is all a matter of the soil depth which is affected by the amount of mounding that is used. Their depth can range up to 2 feet or more depending on the weight constraints of the roof. An extensive green roof is characterized by a thinner layer of soil and smaller plants.