Shrubs up to 3 m.
Green roof weight per m2.
Weight of standard sedum roof.
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.
What is the impact of green roof weight on building structure.
The thicker the substrate layer the greater the weight of the total roof structure.
We can provide more information on individual products or systems on request.
Weight loading kg m 2 low herbaceous succulents and grasses 10 2.
Small trees up to 6 m.
Green roof vegetation type.
On the pages below we show a summary of our product range.
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.
A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof.
1 xf301 sedum blanket system with integrated water retention and filter layer.
In older buildings or new build this may require costly structural reinforcement which in some cases may prove prohibitively expensive.
The simple answer is that the weight of a green roof is determined by the strength of your build or structure so there are a few things to consider when creating your own green roof.
The long term performance of green roofs depends on many factors.
In addition the weight also depends on the water buffering capacity of the drainage layer.
When saturated with water in the summertime when the plants are at.
0 80 mm steel sheet.
When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary.
A traditional green roof can exert a load of up to 250 kg per m2 and that inevitably means a strong building is required to support the weight.
Green roof vegetation weight loadings.
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.
2 al40 edge trim frames and retains the xf301 system.
Sedum vegetation blanket instantly providing at least 90 coverage on an extensive green roof.
Perennials and low shrubs up to 1 5 m.
Holds up to 9 litres of water per square metre so saturated weight is 9kg m2.
Large trees up to 15 m.
The use of reliable and established products that comply with green roofing guidelines is important.
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.
Medium trees up to 10 m.
