100 300 kg m 1 0 3 0 kn m.
Sedum roof weight.
In addition the weight also depends on the water buffering capacity of the drainage 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.
Xf301 sedum blanket extensive green roof system when to specify.
Weight of standard sedum roof.
Roughly speaking extensive green roofs have a substrate thickness of between 4 and 15 cm and a weight of 30 to 220 kilo per m2.
Here s a guide comparing types.
As such they don t require such deep soils or growing media.
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.
This is the lightest weight all in one system available.
The thicker the substrate layer the greater the weight of the total roof structure.
What contributes to green roof weight.
For example a traditional intensive green roof system for plants and grass featuring at least six layers including soil filter fleece drainage layer and vegetation is.
This is because we use specially engineered blankets for water management and the plant species used in the matting are very shallow rooted.
Fertilisers and turf feed.
If necessary this weight can be reduced to approximately 40 kg m for.
Key features extensive sedum green roofs utilise drought tolerant plant species which are typically sedum species.
Plugs or cuttings for plant material weight.
Individual complete modules are installed quickly and have a 90 fully grown sedum layer for instant greening.
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 weight of a green roof is one of a number of factors specifiers need to consider when deciding which roofing system to use.
Extensive built up.
It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer.
The two key elements that contribute to weight are the density of the different layers that make up the green roof and how heavy it becomes as a result of rain absorption.
