Intensive Green Roof Design

Patios and walkways water features and planted areas with trees shrubs and flowers.

Intensive green roof design.

The growing medium depth for an extensive green roof system is typically 6 inches or less. Intensive green roofs open up the world of landscape design on the roof. 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. The full range of landscape features and plants can be included.

Another term for these green roofs is rooftop garden. Intensive systems allow the designer to create a park like setting so they are the best option for roof gardens that will be occupied. An intensive green roof is a deeper typically greater than six inches heavier system designed to sustain complex landscapes. 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. Higher costs and more weight are the characteristics for the intermediate vegetative green roof. Applicable to the greengrid 4 inch 6 inch and 8 inch module depths. 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.