Green Roof Systems Weight

5 25 media depth 17 22 lbs ft2 29 34 lbs ft2.

Green roof systems weight.

In addition the weight also depends on the water buffering capacity of the drainage layer. Medium trees up to 10 m. 7 media depth 22 29 lbs ft2 38 46 lbs ft2. 6 media depth 19 25 lbs ft2 33 39 lbs ft2.

System depth dry weight saturated weight. Green roof vegetation type. So in dry state 50 m2 traditional green roof weighs around 5 tons while a similar sized urbanscape roof weighs just 1 ton. If necessary this weight can be reduced to approximately 40 kg m for roofs that can only bear a lightweight green roof system.

The weight of a green roof is one of a number of factors specifiers need to consider when deciding which roofing system to use. Weight loading kg m 2 low herbaceous succulents and grasses 10 2. Shrubs up to 3 m. Small trees up to 6 m.

Sometimes a flat roof support structure requires a lightweight green roof. Plugs or cuttings for plant material weight. 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.

Large trees up to 15 m. Add 2 5 lbs ft2 for sedum mats and tiles.