Green Roof Design Criteria

Additional standards under development include performance standards for the multiple functions of growing media.

Green roof design criteria.

Design criteria for green roofs design criteria for green roofs green infrastructure. Low weight low capital cost low plant diversity and minimal maintenance requirements. The green roof system. Design criteria green roofs typically consist of layers which are designed to support plant growth and retain water for plant uptake while preventing ponding on the roof surface.

Has been growing perennials for over 20 years and operates one of north america s. Green roofs can be limited by the additional weight of the fully saturated soil and plants in terms of the physical capacity of the roof to bear structural loads. The two basic types of green roof systems extensive and intensive are differentiated mainly by the cost depth of growing medium and the choice of plants. Green roof design criteria structural capacity of the roof.

Extensive green roofs are often not accessible and are characterized by. Green roofs for healthy cities works to develop standards in support of the further development of the industry. Working in close partnership with spri design guidelines approved by the american national standards institute ansi have been developed for fire wind uplift and root repellency. Criteria of a successful green roof project study.