Green Roof Self Weight

The following table provides typical weights dead load self weight for various roofing materials.

Green roof self weight.

Sedum vegetation blanket instantly providing at least 90 coverage on an extensive green roof. 1 xf301 sedum blanket system with integrated water retention and filter layer. Green roofs can reduce stormwater runoff via water wise gardening techniques. 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.

2 al40 edge trim frames and retains the xf301 system. 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. Water is stored by the roof s substrate and. 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.

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. 0 80 mm steel sheet. Intensive systems allow the designer to create a park like setting so they are the best option for roof gardens that will be occupied.

Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products. 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. A study presented at the green roofs for healthy cities conference in june 2004 cited by the epa found water runoff was reduced by over 75 during rainstorms. Last updated july 22 2020.

Greenslope is a roof leveling compound that helps eliminate water ponding areas and facilitate flat roof drainage. The university of melbourne s demonstration green roof is designed for use by visitors and staff. 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. Green roofs play a significant role in retrofitting the low impact development lid practices in urban areas.

Weight of roofing materials. 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.