Intensive Roof Garden Depth

A typical growing medium depth of an intensive green roof is 6 inches or more.

Intensive roof garden depth.

This is especially true of intensive green roofs which can have soil that is two feet deep or more. 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. Plant selection and design greatly affects the maintenance required for the upkeep of these roofs. Accommodates a wider variety of plants shrubs trees.

Features of intensive garden roof assembly. It is also important to factor in the type and lifetime of the roof membranethat will be used. The planting medium in extensive green roofs ranges from 1 6 to 6 inches deep and while deeper systems have been installed they are not favored as much as the shallower systems drought tolerant sedums succulent plants and grasses are the typical plants used since they are shallow rooted and use little water plant diversity on these roofs is kept low to simplify care and to be sure all plants have similar moisture requirements. Depth of growing media between 150 mm and 900 mm.

Intensive green roofs offer a great potential for design and biodiversity. Rooftop gardens support luscious greenery with a wide variety of plants including shrubs trees. 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.