Soil s saturated weight can reach 120 lb ft 3 7 5 kg m 3 which is far too high for roof gardening.
Roof garden soil depth.
Once you are set up rooftop gardening is similar to container gardening.
Fully planted green roofs where the roof is covered with soil and the plants are in the ground make great environmental sense but they are too difficult for homeowners to undertake on their own.
The following are some of the characteristics of the soil for the green roof.
Rooftop lawns are semi intensive green roofs with a total depth of at least 8 inches.
This rooflite soil system supports lawn grasses that require deeper root space thrive on a soil with plenty of finer particles the precise amount of organic matter.
Stable structure for anchorage of plants root systems.
If you re considering a rooftop garden there are a couple of directions you could go in.
It supports the growth of the plants by providing the basic nutrients.
Options for your rooftop garden.
Proper soil selection is critical to the long term benefits of the living roof.