Green Roof Design Criteria

Criteria of a successful green roof project study.

Green roof design criteria.

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. The roofs are designed so that water drains vertically through the media and then horizontally along a waterproofing layer towards the outlet. The green roof system. 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.

Has been growing perennials for over 20 years and operates one of north america s. Additional standards under development include performance standards for the multiple functions of growing media. Extensive green roofs are often not accessible and are characterized by. Low weight low capital cost low plant diversity and minimal maintenance requirements.

Green roof design criteria structural capacity of the roof. 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. Green roofs consist of a series of layers that create an environment suitable for plant growth without damaging the underlying roof system. Green roofs for healthy cities works to develop standards in support of the further development of the industry.