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Sedum roof weight.
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.
Fertilisers and turf feed.
Plugs or cuttings for plant material weight.
As such they don t require such deep soils or growing media.
100 300 kg m 1 0 3 0 kn m.
The thicker the substrate layer the greater the weight of the total roof structure.
Here s a guide comparing types.
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.
What contributes to green roof weight.
Xf301 sedum blanket extensive green roof system when to specify.
Enviromat green roof is lighter in weight than a wildflower roof.
Extensive built up.
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.
Key features extensive sedum green roofs utilise drought tolerant plant species which are typically sedum species.
It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer.
Weight of standard sedum roof.
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.
Add 2 5 lbs ft2 for sedum mats and tiles system depth dry weight saturated weight 5 25 media depth 17 22 lbs ft2 29 34 lbs ft2 6 media depth 19 25 lbs ft2 33 39 lbs ft2.
A standard sedum roof has a saturated weight of about 80 kg m.
If necessary this weight can be reduced to approximately 40 kg m for.
This is the lightest weight all in one system available.
This is because we use specially engineered blankets for water management and the plant species used in the matting are very shallow rooted.
Individual complete modules are installed quickly and have a 90 fully grown sedum layer for instant greening.
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.
