Intensive Green Roof Design

Intensive green roofs open up the world of landscape design on the roof.

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. Designed or semi intensive vegetative green roofs in terms of requirements fall in between extensive and intensive vegetative green roof systems. For intensive green roof profiles a drain restrictor may be used to retain water in the base of the profile for subsequent plant transpiration. 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 intensive green roof uses planting mediums that have greater depth than the extensive green roof. Intensive systems allow the designer to create a park like setting so they are the best option for roof gardens that will be occupied. Another term for these green roofs is rooftop garden. 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. The growing medium depth for an extensive green roof system is typically 6 inches or less. 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.