Intensive Green Roof Design

The growing medium depth for an extensive green roof system is typically 6 inches or less.

Intensive green roof design.

An extensive green roof is a thin usually less than six inches lightweight system that is typically predominantly planted with succulents drought tolerant ground covering plants and grass. Patios and walkways water features and planted areas with trees shrubs and flowers. Applicable to the greengrid 4 inch 6 inch and 8 inch module depths. Extensive green roofs 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.

For intensive green roof profiles a drain restrictor may be used to retain water in the base of the profile for subsequent plant transpiration. Another term for these green roofs is rooftop garden. Intensive green roofs require the deepest soil and have the greatest impact on the structural design but they also accommodate all types of plantings including large shrubs and trees. The full range of landscape features and plants can be included.

Designed or semi intensive vegetative green roofs in terms of requirements fall in between extensive and intensive vegetative green roof systems. Higher costs and more weight are the characteristics for the intermediate vegetative green roof. This deeper soil allows intensive roofs to accommodate large plants and dramatic plant groupings. An intensive green roof is a deeper typically greater than six inches heavier system designed to sustain complex landscapes.