Sedum Green Roof Weight

As such you may want to consider strengthening the walls of your structure and the roof deck before installing the green roof.

Sedum green roof weight.

The thicker the substrate layer the greater the weight of the total roof structure. The option to specify a substrate system allows for a wider variety of vegetation to be chosen. Extensive green roofs are constructed using shallow depths of growing mediums known as substrates and vegetated with low maintenance plants. 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.

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. Key features extensive sedum green roofs utilise drought tolerant plant species which are typically sedum species. Lightweight low maintenance extensive green roofs. Xf301 sedum blanket extensive green roof system when to specify.

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. 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. If necessary this weight can be reduced to approximately 40 kg m for roofs that can only bear a lightweight green roof system. So in dry state 50 m2 traditional green roof weighs around 5 tons while a similar sized urbanscape roof weighs just 1 ton.

75 drainage layer 5 water retention layer includes 2 lbs s f. A standard sedum roof has a saturated weight of about 80 kg m. In addition the weight also depends on the water buffering capacity of the drainage layer. It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer.

Weight of standard sedum roof. Layered system semi intensive growing media. Based on sustainable green technology and stormwater runoff management our green roofs provide many advantages and innovations in green roof installation. Plant material weight plugs or small containers system depth dry weight saturated 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. 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. When sedum vegetation is applied to a green roof the weight is approximately 30 kg m2. 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.