You may find that your roof deck already has a waterproofing layer after all waterproofing is a key part of protecting the structure.
Parts of a green roof.
This could be a bitumen membrane or coating asphalt on a shed or some form of liquid waterproofing.
The most elementary form of such constructions is the extensive planted roofs.
The layers of a green roof must like any roof accommodate drainage and protect the building from the elements with a waterproof membrane.
Drainage paths provide a way for excess water to reach rainwater drainage devices.
Different types of green roofing.
Usually green roofs have vegetation and plants possibly a garden.
It may also include additional layers such as a root barrier and drainage and irrigation systems.
Any eco friendly roof can be called green.
But they also must create a growing area and potentially provide support irrigation and root protection barriers while staying as light as possible.
The green cover may be of herbs grass drought resistant plants flowers and even vegetables.
Parts of a green roof structure.
Two types of green roof exist.
A standard green roof comprises of a soil of lightweight mixed together with a layer of you ve reached the end of your free preview.
Depending on the type of green roof you install the plants may be modular or have drainage layers.
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.
Extensive green roofs have a minimum layer of substrate.
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.
However the choice of vegetated system must be suitable to load bearing capacity of the building s roof.
The green roof can be established on any load bearing components concrete tanbark wood.
Optigreen extensive roof fertilizer is a slow release fertilizer specifically formulated to meet the nutritional requirement of sedums on extensive green roofs.
Waterproofing a roof deck for a green roof.
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