Liveroof soil specifications will vary somewhat depending on region and available components.
Green roof depth soil.
While installation of a green roof is initially more expensive than a conventional roof a green roof has a much longer life span than a conventional roof.
Some green roofs are constructed specifically to support sports turf.
Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures.
It is generally not recommended for hot climates.
The structural engineer must factor in the weight of completely saturated soil since the plantings and the soil will hold a significant amount of water.
Careful plant selection and maintenance is needed to ensure annuals do not become weeds on a green roof.
Consult your local grower for specifics.
The existing roof must be reinforced to carry the additional weight load anywhere from 15 30 lbs sq.
This is especially true of intensive green roofs which can have soil that is two feet deep or more.
It is also important to factor in the type and lifetime of the roof membranethat will be used.
Fully saturated at 4 depth when fully vegetated with liveroof plants.
The planting medium in extensive green roofs ranges from 1 6 to 6 inches deep and while deeper systems have been installed they are not favored as much as the shallower systems drought tolerant sedums succulent plants and grasses are the typical plants used since they are shallow rooted and use little water plant diversity on these roofs is kept low to simplify care and to be sure all plants have similar moisture requirements.
Its soil depth is a full 2 inches enough to support many low growing succulents and a limited number of accent plants.
These require irrigation and a substrate depth of at least 200 mm.
Careful species selection is needed to ensure outcomes can be met.
The lite system is typically used on retrofit projects when the roof is engineered with only 15 to 17 pounds per sf for the green roof component.
Garden roof assembly hydrotech s garden roof assemblies combine the proven performance of our monolithic membrane 6125 roofing waterproofing with proven green technology.
Liveroof engineered green roof soil weighs approximately 27 to 29 lbs sq.
An intensive green roof is intended to be more of a natural landscape installed on a rooftop.
Soil structure for green roof media.
This is because they provide ecological benefits aesthetic value and creative urban architecture.
There are two types of green roof.
Sports turf requires a designed soil or growing medium to ensure effective drainage and a substrate.
When designing a green roof there are several factors to take into consideration.
Intensive roofs which are thicker with a minimum depth of 12 8 cm 5 1 16 in and can support a wider variety of plants but are heavier and require more maintenance and extensive roofs which are shallow ranging in depth from 2 cm 13 16 in to 12 7 cm 5 in lighter than intensive green roofs.
Or more depending on the depth of the soil.
Green roofs or living roofs have become popular over the years.
Intensive green roofs may use plants with foliage from 1 to 15 feet and may require several feet of soil depth.
The surface and play requirements are much more demanding than for amenity turf.
