Intensive Green Roof Loads

Thus they have more substantial structural loads and need more frequent maintenance and watering.

Intensive green roof loads. The venny green roof melbourne. A traditional green roof can exert a load of up to 250 kg per m2 and that inevitably means a strong building is required to support the weight. Intensive green roofs weigh from 35 pounds to beyond 100 pounds per square foot when dry it is all a matter of the soil depth which is affected by the amount of mounding that is used. Applicable to the greengrid 4 inch depth.

A variation of the extensive green roof is called semi extensive. Depending on the source you look at these roofs may add 10 to 35 pounds per square foot to a roof s load. The solution is simple. Intensive green roofs have more soil and a deeper growing medium sometimes several feet that can support a more diverse plant selection including small trees.

The second trussed roof is designed for a dead load of 160kg m 2 and a live load of 40kg m 2. They are usually accessible. Functional or extensive vegetative green roofs are well suited to roofs with little load bearing capacity. Typically the least expensive vegetative green roof application.

In older buildings or new build this may require costly structural reinforcement which in some cases may prove prohibitively expensive. Extensive green roofs are the simplest to install and are very often added to existing roofs. Where added loading is required the 6 inch or 8 inch depths can be designed as functional vegetative green roofs.