Sedum Green Roof Weight

Typically the total depth of the green roof would be 85 100mm 12 20mm drainage layer 70mm of substrate and have a saturated weight of approx.

Sedum green roof weight.

6 media depth 24 29 lbs ft2 39 46 lbs ft2. This is the lightest weight all in one system available. Utilizing ecogrid sedum tray technology and our specialized light weight green roof soil mixtures landtech soils hope to be someday recognised as supplying the best green living roofs in the. 5 media depth 17 22lbs ft2 31 37 lbs ft2.

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. 75 drainage layer 5 water retention layer includes 2 lbs s f. Scale this up and a 1 000 m2 traditional green roof space requires 100 tons of material to be brought on the roof and the urbanscape version only 20 tons and can be called a light weight green roof. As such you may want to consider strengthening the walls of your structure and the roof deck before installing the green roof.

When sedum vegetation is applied to a green roof the weight is approximately 30 kg m2. You can expect the loading to be upwards of 250kg per square metre which is quite a lot especially if your building is an average garden shed. When using a biodiverse vegetation such as a mix of sedums grasses herbs plants and nectar plants the weight of the green roof is about 150 kilos m2 because a thicker substrate layer is required. Lightweight low maintenance extensive green roofs.

If necessary this weight can be reduced to approximately 40 kg m for roofs that can only bear a lightweight green roof system. Xf301 sedum blanket extensive green roof system when to specify. A standard sedum roof has a saturated weight of about 80 kg m. Layered system semi intensive growing media.

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 thicker the substrate layer the greater the weight of the total roof structure. Extensive green roofs are constructed using shallow depths of growing mediums known as substrates and vegetated with low maintenance plants. It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer.

Plant material weight plugs or small containers system depth dry weight saturated weight. So in dry state 50 m2 traditional green roof weighs around 5 tons while a similar sized urbanscape roof weighs just 1 ton. In addition the weight also depends on the water buffering capacity of the drainage layer. The option to specify a substrate system allows for a wider variety of vegetation to be chosen.