Therefor a significant amount of attention must be paid to the various.
Green roof minimum depth.
Thicker with a minimum depth of 12 8 cm 5 0 in.
How to make a green roof for your bird table.
Vegetables are the other main group of annual plants used on green roofs.
Plants for green roofs with a soil depth of 100mm.
Funding for green roofs is determined by green roof area gra and soil depth.
Some green roofs are constructed specifically to support sports turf.
They are lighter than intensive green roofs and they don t.
There are two types of green roof.
Because green roofs require professional design careful structural analysis and multiple layers and systems even extensive green roofs usually start at 8 per square foot significantly more expensive than the 1 25 per square foot for built up roofs burs source.
Intensive green roofs weigh from 35 pounds to beyond 100 pounds per square foot when dry it is all a matter of the soil depth which is affected by the amount of mounding that is used.
The initial expense of green rooftops often turns away prospective clients.
There are two types of green roof.
Flat roofing solutions bauder flat roofs.
Green roof projects will undergo an advanced schematic 75 and 100 design review process with a two week review time for each phase.
The minimum project amount must be 50 000.
The schedule below outlines the maximum reimbursement rate for green roof projects.
Shallow ranging in depth from 2 cm 0 79 in to 12 7 cm 5 0 in.
They may include a granular drainage medium multi course or a synthetic drainage layer multi layer.
Careful plant selection and maintenance is needed to ensure annuals do not become weeds on a green roof.
These require irrigation and a substrate depth of at least 200 mm.
They can support many different kinds of plants but they are heavier and require more maintenance.
Tray systems are not a viable option for intensive roofs due to the weight.
Sloped roofs retain less water in general and the moisture content varies from the ridge to the eave lowest edge of the roof.
It is the task of the designer to make adjustments in the green roof system accordingly e g.
Drainage thickness of growing media plant varieties etc.
Plants for green roofs with a soil depth of 150mm.