Weight Of Extensive Green Roof

You can plant plants that have a shallow root system on these roofs.

Weight of extensive green roof.

They fall into three main categories extensive intensive and semi intensive. So in dry state 50 m2 traditional green roof weighs around 5 tons while a similar sized urbanscape roof weighs just 1 ton. It weighs 60 and 200kg per square metre. Green roofs are also known as vegetative or eco roofs.

Extensive green roofs on the other hand have a shallow soil of 200mm thick. As surface area increases the weight of green roofs obviously increases proportionally. Green roofs which are planted and seeded tend to perform better in the long term. Although there are no precise definitions of.

Extensive roofs are lower maintenance that intensive ones and lighter in weight. Green roof system weights columbia green technologies 79 se taylor st. 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. Roughly speaking extensive green roofs have a thickness of between 4 and 15 cm and a weight of between 30 and 220 kg m2.

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. Green roofs consist of a number of layers including a waterproofing layer drainage layer substrate and planting. 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. Intensive green roofs are essentially roof gardens and may also need to allow for the additional weight of paving and terracing furniture and even trees.

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. 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. What is a green roof.