Extensive green roofs.
Extensive green roof section.
A 2006 study by the university of michigan comparing costs of conventional and green roofs showed that on average installing a green roof costs about 22 00 sq.
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The additional weight demands a stronger physical roof structure than extensive green roofs but allows for foot traffic.
Jul 4 2020 explore danica mihadavid s board green roof sections on pinterest.
The modular units are often plastic or metal trays filled with growing medium.
Moisture retained by saturated media after free draining 40 60 typ.
Green roof components growing media water holding capacity field capacity maximum water capacity astm test.
These systems are ideal for efficient stormwater.
A properly designed and installed extensive green roof system can cost 108 248 m 2 10 23 sq ft while an intensive green roof costs 355 2 368 m 2 33 220 sq ft however since most of the materials used to build the green roof can be salvaged it is estimated that the cost of replacing a green roof is generally one third of the initial installation costs.
15 to 50 per square foot.
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.
8 to 20 per square foot.
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Extensive green roofs are generally made up of a very thin layer of soil or other planting medium with shallow root plants like sedum mosses and grasses.
The soil is usually not more than 5 deep and is sometimes contained by a tray system which provides a barrier to excessive growth protects the roof membrane and.
Intensive green roof profiles can range from 200mm to over 1m deep.
This increases the volume of growing media available for root development and water holding capacity and greatly extends the variety of plants that can be grown.
Cad drawings extensive green roof.
Moisture retained by media that cannot be removed aka wilt point 12 18 typ.
Some green roofs are installed in one large integrated section while modular green roofs use small portable planting beds placed together to create a larger green roof.
Cad drawings extensive green roof.
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