Plugs or cuttings for plant material weight.
Green roof systems weight.
Shrubs up to 3 m.
Add 2 5 lbs ft2 for sedum mats and tiles.
Weight loading kg m 2 low herbaceous succulents and grasses 10 2.
This special lightweight structure for flat roofs transforms your grey roof with a pitch of 0 to 15 degrees into a sustainable green roof almost instantly.
Perennials and low shrubs up to 1 5 m.
Here s a guide comparing types grant findley october 2 2014 at 3 14 pm reply.
Green roof vegetation type.
If necessary this weight can be reduced to approximately 40 kg m for roofs that can only bear a lightweight green roof system.
Large trees up to 15 m.
Weight of standard sedum roof a standard sedum roof has a saturated weight of about 80 kg m.
The weight of a green roof is one of a number of factors specifiers need to consider when deciding which roofing system to use.
Medium trees up to 10 m.
Small trees up to 6 m.
7 media depth 22 29 lbs ft2 38 46 lbs ft2.
Sometimes a flat roof support structure requires a lightweight green roof.
6 media depth 19 25 lbs ft2 33 39 lbs ft2.
In addition the weight also depends on the water buffering capacity of the drainage layer.
5 25 media depth 17 22 lbs ft2 29 34 lbs ft2.