Key features extensive sedum green roofs utilise drought tolerant plant species which are typically sedum species.
Weight of a sedum roof.
An extensive green roof or sedum roof is a roof with vegetation that is more or less self perpetuating and that can further develop and maintain itself.
Green roof weight can range from hundreds of tons for an intensive green roof such as a small urban park or garden to just a couple of hundred kilos for a lightweight extensive green roof system like urbanscape featuring a lush mix of sedum vegetation.
The weight of a green roof is one of a number of factors specifiers need to consider when deciding which roofing system to use.
In addition the weight also depends on the water buffering capacity of the drainage layer.
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.
The thicker the substrate layer the greater the weight of the total roof structure.
If necessary this weight can be reduced to approximately 40 kg m for.
This is the lightest weight all in one system available.
It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer.
Discuss your flat roof project cradle to cradle silver certification our sedum blanket xf301 has been certifed through the cradle 2 cradle standard which guides manufacturers through a continual improvement process that looks at a product through five quality categories material health material re utilisation renewable energy and carbon.
A standard sedum roof has a saturated weight of about 80 kg m.
100 300 kg m 1 0 3 0 kn m.
Xf301 sedum blanket extensive green roof system when to specify.