Green Roof Self Weight

The main thing is to speak to a structural engineer to know if the roof can support the weight of the green layer because once it s absorbed rainwater it can get very heavy.

Green roof self weight.

40mm high perforated edge drainage trim for bauder sedum blanket. 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. It has areas of deep and shallow substrate and is designed for a dead load of 300kg m 2 and a live load of 300kg m 2 on the decking and walkway mesh areas and 150kg m 2 on the planting area. The university of melbourne s demonstration green roof is designed for use by visitors and staff.

It is built on a heritage listed brick building in burnley. 0 80 mm steel sheet. This roof ponding repair kit can be topcoated with all commonly used roof coatings to waterproof a flat roof. Green roofs play a significant role in retrofitting the low impact development lid practices in urban areas.

You can retrofit a green roof but in these cases you may need to use a much lighter weight green roof system a sedum layer with a light soil is a good solution. The following table provides typical weights dead load self weight for various roofing materials. 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. 1 xf301 sedum blanket system with integrated water retention and filter layer.

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. Sedum vegetation blanket instantly providing at least 90 coverage on an extensive green roof. Weight of roofing materials. Water is stored by the roof s substrate and.

Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products. Intensive systems allow the designer to create a park like setting so they are the best option for roof gardens that will be occupied. 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. Green roofs can reduce stormwater runoff via water wise gardening techniques.

Last updated july 22 2020. Once the plants are installed and the soil is moist these rooftop green spaces can weigh as much as 150 pounds per square foot.