Parts Of A Green Roof

However the choice of vegetated system must be suitable to load bearing capacity of the building s roof.

Parts of a green roof.

Depending on the type of green roof you install the plants may be modular or have drainage layers. Optigreen extensive roof fertilizer is a slow release fertilizer specifically formulated to meet the nutritional requirement of sedums on extensive green roofs. Two types of green roof exist. It may also include additional layers such as a root barrier and drainage and irrigation systems.

Extensive green roofs have a minimum layer of substrate. Usually green roofs have vegetation and plants possibly a garden. Apply it twice yearly beginning the second year typically in april and july at the rate of 4lbs per 1000 square feet. You may find that your roof deck already has a waterproofing layer after all waterproofing is a key part of protecting the structure.

The green cover may be of herbs grass drought resistant plants flowers and even vegetables. The most elementary form of such constructions is the extensive planted roofs. A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane. However all green roofs include a few important features such as waterproofing and root repellent to keep the underlying structure safe and undamaged.

The basic anatomy of a green roof consists of vegetation growing medium filter membrane drainage layer waterproof root repellant layer roofing membrane support for plantings above thermal insulation vapor control layer and structural roof support. Waterproofing a roof deck for a green roof. It doesn t have to be a traditional garden sprawling and having multiple types of herbs plants flowers or fruits. This could be a bitumen membrane or coating asphalt on a shed or some form of liquid waterproofing.

The layers of a green roof must like any roof accommodate drainage and protect the building from the elements with a waterproof membrane. Want to read the whole page. But they also must create a growing area and potentially provide support irrigation and root protection barriers while staying as light as possible. Different types of green roofing.

Parts of a green roof structure. Two major classes of planted roofs are mainly described intensive and green roof when considering the building attributes the thickness of the layers and the prerequisites for maintenance green roof shufro 2005. Drainage paths provide a way for excess water to reach rainwater drainage devices.