Intensive Vs Extensive Green Roofs

An extensive green roof is characterized by a thinner layer of soil and smaller plants.

Intensive vs extensive green roofs.

These can easily be installed on sheds and garages. For a conventional roof. What is a green roof. Intensive planting there are two ways of planting a roof.

Extensive green roofs. The plants that are mostly used on extensively planted roofs include grasses mosses herbs and succulents. 15 to 50 per square foot. In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs.

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. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants. Extensive green roof systems extensive systems are simpler and lighter weight than intensive systems. They fall into three main categories extensive intensive and semi intensive.

Due to their light weight and low profile they require less structural support and can be used on roofs with a slope of 30 b0 and higher. Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. 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. Green roofs are also known as vegetative or eco roofs.

Intensive includes a thick layer of soil that can support large vegetation such as small trees. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species. If you are looking for a low maintenance lightweight green roof that features simple and self maintaining vegetation then the extensive green roof is for you. 8 to 20 per square foot.

It should be clear from the above which green roof type is best for you. These systems are ideal for efficient stormwater. 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. Vegetative roofs are divided into two categories.

The distinction is based on the kind of plant involved. Intensive vs extensive green roof. A green roof comes in two varieties. These systems range in thickness from 2 6 94 and weigh approximately 15 30lbs per sq ft.