Intensive Roof Garden Depth

Rooftop gardens support luscious greenery with a wide variety of plants including shrubs trees.

Intensive roof garden depth.

Features of intensive garden roof assembly. Intensive green roofs offer a great potential for design and biodiversity. This system supports everything from small personal home gardens to full scale public parks. Deeper rooftop gardens with a total depth of more than 18 inches have a modified system build up because just as in natural soil profiles the deeper root zone has other properties as the top soil layer above.

This is especially true of intensive green roofs which can have soil that is two feet deep or more. Possibilities of hardscape options site amenities and water features. A typical growing medium depth of an intensive green roof is 6 inches or more. Plant selection and design greatly affects the maintenance required for the upkeep of these roofs.

The structural engineer must factor in the weight of completely saturated soil since the plantings and the soil will hold a significant amount of water. Depth of growing media between 150 mm and 900 mm. Planting media for intensive green roofs are a foot deep at minimum and have saturated weights ranging from 80 to 120 pounds per square foot depending on type and depth of planting medium and the type of plants.