Semi Extensive Green Roof

Semi intensive green roofs our semi intensive green roof systems include a richer deeper substrate and drainage solution compared to extensive roofs enabling use of a wider range of complex plant mixtures.

Semi extensive green roof.

In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs. A typical growing medium depth for a semi intensive green roof is 6 to 12 inches. Explore easy to maintain extensive systems or intricate green roofs supporting wide ranging plant life. Semi intensive roofs are generally used within highly visible area s to improve aesthetic design using small shrubs forbs and grasses.

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. This system is able to retain more stormwater than an extensive system and provides the potential to host a richer ecology. Green roofs are also known as vegetative or eco roofs. Despite the 10 story elevation and center city location the green roof has attracted a variety of wildlife over the years.

The green roof is composed of a mix of sedums and hardy herbs with a sweeping crescent of small grasses. 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. A semi intensive green roof can give rise to a richer ecology with more diverse plant and animal species. It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants.

They fall into three main categories extensive intensive and semi intensive. Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used.