Extensive Roof Garden Plants

A variation of the extensive green roof is called semi extensive.

Extensive roof garden plants.

It also allows for a formal garden to be installed with paths grass lawn and flowers or pot plants. Depending on the source you look at these roofs may add 10 to 35 pounds per square foot to a roof s load. The extensive type of green roof by contrast have a soil depth of 50 150mm only support very drought tolerant plants no irrigation are too harsh an environment for most common weeds and so require very little maintenance. A 10 4 acre extensive green roof in dearborn mich.

Given those advantages only the extensive green roof will be discussed here. When designing a functional and or designed extensive vegetative green roof the best types of plants are those that have a keen attribute to thrive in drought like conditions. At the ford motor co. Plant mixes are usually made up of hardy succulents that can thrive in a thin 4 or 6 inch growing medium profile with limited care and maintenance.

The extensive green roof. The soil will be up to a foot deep and not require irrigation. Extensive roofs are typically lightweight and can be installed over a variety of structures including metal roof decks. An extensive garden roof assembly can be applied to flat roofs and sloping roofs with a pitch of up to 12 12 or 45 provided the appropriate measures are taken to cope with the shear forces and soil retention.

You can get a wider variety of plants suited to the conditions offered by this option.