Weight Of Extensive Green Roof

They fall into three main categories extensive intensive and semi intensive.

Weight of extensive green roof.

Green roof system weights columbia green technologies 79 se taylor st. So in dry state 50 m2 traditional green roof weighs around 5 tons while a similar sized urbanscape roof weighs just 1 ton. Extensive roofs are lower maintenance that intensive ones and lighter in weight. An interesting example of an intensive green roof is manaton the award winning private house on dartmoor that uses local meadow grass to blend the family home into the landscape.

The planting medium in intensive green roofs starts at 6 inches although you will see some wiggle room in various definitions and really elaborate designs may exceed a couple feed. 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. Roughly speaking extensive green roofs have a thickness of between 4 and 15 cm and a weight of between 30 and 220 kg m2. A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof.

Extensive green roofs traditionally support 50 120 kg m 2 10 25 pounds per square foot of vegetation while intensive roofs support 390 730 kg m 2 80 150 pounds per square foot of vegetation. Once the plants are installed and the soil is moist these rooftop green spaces can weigh as much as 150 pounds per square foot. Although there are no precise definitions of. A green roof with a lightweight solution of 30 kg m2 is only possible with sedum vegetation and a green roof with a weight of 220 kg m2 is composed of a combination of sedum grasses herbs or host plants.

Extensive green roofs on the other hand have a shallow soil of 200mm thick. What is a green roof. As surface area increases the weight of green roofs obviously increases proportionally. Green roofs consist of a number of layers including a waterproofing layer drainage layer substrate and planting.

Such facilities include different types of plants with the shallow root system. It weighs 60 and 200kg per square metre. You can plant plants that have a shallow root system on these roofs.